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Dr. Luigi Manfrini
Department of Agri-Food Sciences and Technologies, University of Bologna | UNIBO, Viale Fanin 44, 40127 Bologna, Italy

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0 Irrigation
0 Plant Biology
0 Plant Ecology
0 Plant Physiology
0 Remote Sensing

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Journal article
Published: 03 June 2021 in Agronomy
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Climate change is leading to higher plant water requirements and rootstock can play a role in tree adaptation, since the more vigorous ones are also likely to be more stress resistant. Pear trees of the cv. Abbé Fetél grafted on BA29 (more vigorous) and SYDO (more dwarfing) quince were irrigated according to three different treatments: 110 C, 80 DI and 60 DI, corresponding to 110%, 80% and 60% of the crop evapotranspiration rate (ETc), respectively. Shoot and fruit growth, water potentials, leaf gas exchanges and dry matter content were monitored during the season. Fruit quality was evaluated at harvest and after 6 months of storage at 1 °C. Results show how for both rootstocks, 60 DI significantly decreased their stem (Ψstem) and leaf (Ψleaf) water potentials as well as leaf gas exchanges. In SYDO, final fruit size was affected by irrigation, with lower values on 60 DI, but in BA29, no differences were found between treatments. After storage, BA29 60 DI fruit showed a higher soluble solid content, while in SYDO fruit, firmness was more affected by irrigation level. In conclusion, despite a slight decrease in fruit size, reduced irrigation led to fruit with higher quality features that were also maintained after a long period of storage.

ACS Style

Melissa Venturi; Luigi Manfrini; Giulio Perulli; Alexandra Boini; Kushtrim Bresilla; Luca Corelli Grappadelli; Brunella Morandi. Deficit Irrigation as a Tool to Optimize Fruit Quality in Abbé Fetél Pear. Agronomy 2021, 11, 1141 .

AMA Style

Melissa Venturi, Luigi Manfrini, Giulio Perulli, Alexandra Boini, Kushtrim Bresilla, Luca Corelli Grappadelli, Brunella Morandi. Deficit Irrigation as a Tool to Optimize Fruit Quality in Abbé Fetél Pear. Agronomy. 2021; 11 (6):1141.

Chicago/Turabian Style

Melissa Venturi; Luigi Manfrini; Giulio Perulli; Alexandra Boini; Kushtrim Bresilla; Luca Corelli Grappadelli; Brunella Morandi. 2021. "Deficit Irrigation as a Tool to Optimize Fruit Quality in Abbé Fetél Pear." Agronomy 11, no. 6: 1141.

Journal article
Published: 25 February 2021 in Agronomy
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The sustainability of reducing light in apple orchards under well-watered (ww) and water stress (ws) conditions was evaluated for water relations, plant gas exchanges, fruit growth, yield determinants, and fruit quality over three years. A black (B) 28% shading net was compared with two different 50% shading nets: red (R) and white (W). Each net was combined with two irrigation regimes (ww and ws) based on plant water status. Under ww and ws conditions, increasing shade from 28% to 50% was not detrimental for plant gas exchanges, yield, or quality over three years. Higher shade improved plant water status regardless of irrigation regime. Higher shading could be considered sustainable in apple orchards over several seasons. Fruit quality was more sensitive to plant water status than to light reduction. ws increased fruit soluble solid content and relative dry matter, regardless of shading, and this was positively reflected in consumer’s preference. When water availability is limited, increasing shading to 50% can help save water and maintain high-quality yields associated with water stress. Given the likely reductions of water availability in agriculture, growers and consultants may consider shading apple orchards as a sustainable and safe horticultural technique to save water.

ACS Style

Alexandra Boini; Luigi Manfrini; Brunella Morandi; Luca Corelli Grappadelli; Stefano Predieri; Giulia Daniele; Gerardo López. High Levels of Shading as A Sustainable Application for Mitigating Drought, in Modern Apple Production. Agronomy 2021, 11, 422 .

AMA Style

Alexandra Boini, Luigi Manfrini, Brunella Morandi, Luca Corelli Grappadelli, Stefano Predieri, Giulia Daniele, Gerardo López. High Levels of Shading as A Sustainable Application for Mitigating Drought, in Modern Apple Production. Agronomy. 2021; 11 (3):422.

Chicago/Turabian Style

Alexandra Boini; Luigi Manfrini; Brunella Morandi; Luca Corelli Grappadelli; Stefano Predieri; Giulia Daniele; Gerardo López. 2021. "High Levels of Shading as A Sustainable Application for Mitigating Drought, in Modern Apple Production." Agronomy 11, no. 3: 422.

Journal article
Published: 17 November 2020 in Applied Sciences
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Semi-arid conditions are favorable for the cultivation of late ripening peach cultivars; however, seasonal water scarcity and reduction in soil biological fertility, heightened by improper soil management, are jeopardizing this important sector. In the present two-year study, four soil managements were compared on a late ripening peach orchard: (i) completely tilled (control); (ii) mulched with reusable reflective plastic film; (iii) mulching with a Leguminosae cover-crop flattened after peach fruit set; (iv) completely tilled, supplying the water volumes of the plastic mulched treatment, supposed to be lower than the control. Comparison was performed for soil features, water use, tree functionality, fruit growth, fruit quality, yield and water productivity. Even receiving about 50% of the regular irrigation, reusable reflective mulching reduced water loss and soil carbon over mineralization, not affecting (sometimes increasing) net carbon assimilation, yield, and fruit size and increasing water productivity. The flattening technique should be refined in the last part of the season as in hot and dry areas with clay soils and low organic matter, soil cracking increased water evaporation predisposing the orchard at water stress. The development and implementation of appropriate soil management strategies could be pivotal for making peach production economically and environmentally sustainable.

ACS Style

Pasquale Losciale; Liliana Gaeta; Luigi Manfrini; Luigi Tarricone; Pasquale Campi. Orchard Floor Management Affects Tree Functionality, Productivity and Water Consumption of a Late Ripening Peach Orchard under Semi-Arid Conditions. Applied Sciences 2020, 10, 8135 .

AMA Style

Pasquale Losciale, Liliana Gaeta, Luigi Manfrini, Luigi Tarricone, Pasquale Campi. Orchard Floor Management Affects Tree Functionality, Productivity and Water Consumption of a Late Ripening Peach Orchard under Semi-Arid Conditions. Applied Sciences. 2020; 10 (22):8135.

Chicago/Turabian Style

Pasquale Losciale; Liliana Gaeta; Luigi Manfrini; Luigi Tarricone; Pasquale Campi. 2020. "Orchard Floor Management Affects Tree Functionality, Productivity and Water Consumption of a Late Ripening Peach Orchard under Semi-Arid Conditions." Applied Sciences 10, no. 22: 8135.

Journal article
Published: 12 June 2020 in Agronomy
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The sustainability of current farming systems has been questioned in the last decades, especially in terms of the environmental impact and mitigation of global warming. Also, the organic sector, which is supposed to impact less on the environment than other more intensive systems, is looking for innovative solutions to improve its environmental sustainability. Promisingly, the integration of organic management practices with conservation agriculture techniques may help to increase environmental sustainability of food production. However, little is known about the possible impact of conservation agriculture on the content of bioactive compounds in cash crops. For this reason, a two-year rotation experiment used 7 cash crops (4 leafy vegetables and 3 fruit crops) to compare integrated (INT), organic farming (ORG), and organic no-tillage (ORG+) systems to evaluate the possible influence of cropping systems on the nutritional/nutraceutical values of the obtained fruits and leafy vegetables. The results pointed out specific responses based on the species as well as the year of cultivation. However, cultivation with the ORG+ cropping system resulted in effective obtainment of fruits and vegetables with higher levels of bioactive compounds in several cases (11 out 16 observations). The ORG+ cropping system results are particularly promising for leafy vegetable cultivation, especially when ORG+ is carried out on a multi-year basis. Aware that the obtained data should be consolidated with longer-term experiments, we conclude that this dataset may represent a good starting point to support conservation agriculture systems as a possible sustainable strategy to obtain products with higher levels of bioactive compounds.

ACS Style

Costanza Ceccanti; Marco Landi; Daniele Antichi; Lucia Guidi; Luigi Manfrini; Michele Monti; Giacomo Tosti; Christian Frasconi. Bioactive Properties of Fruits and Leafy Vegetables Managed with Integrated, Organic, and Organic No-Tillage Practices in the Mediterranean Area: A Two-Year Rotation Experiment. Agronomy 2020, 10, 1 .

AMA Style

Costanza Ceccanti, Marco Landi, Daniele Antichi, Lucia Guidi, Luigi Manfrini, Michele Monti, Giacomo Tosti, Christian Frasconi. Bioactive Properties of Fruits and Leafy Vegetables Managed with Integrated, Organic, and Organic No-Tillage Practices in the Mediterranean Area: A Two-Year Rotation Experiment. Agronomy. 2020; 10 (6):1.

Chicago/Turabian Style

Costanza Ceccanti; Marco Landi; Daniele Antichi; Lucia Guidi; Luigi Manfrini; Michele Monti; Giacomo Tosti; Christian Frasconi. 2020. "Bioactive Properties of Fruits and Leafy Vegetables Managed with Integrated, Organic, and Organic No-Tillage Practices in the Mediterranean Area: A Two-Year Rotation Experiment." Agronomy 10, no. 6: 1.

Journal article
Published: 01 June 2019 in Journal of Plant Physiology
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Biophysical fruit growth depends on a balance among the vascular and transpiration flows entering/exiting the fruit via phloem, xylem and through the epidermis. There is no information on vascular flows of Japanese plums, a species characterized by high-sugar content of its fruit at harvest. Vascular flows of Angeleno plums were monitored by fruit gauges during late fruit development, under the dry environment of the Goulburn Valley, Victoria, Australia. Phloem, xylem flows and skin transpiratory losses were determined, as well as diurnal leaf, stem and fruit pressure potentials. Fruit seasonal development, skin conductance and dry matter accumulation were also monitored. Fruit grew following a double-sigmoid pattern, but fruit size increased only 3.1 g over the last 3 weeks of development. Fruit grew very little in the morning, primarily due to phloem inflows (0.05 g fruit-1hr-1), while water left the fruit via the xylem. Negligible skin transpiration was recorded for vapour pressure deficit (VPD) values below 3 kPa. This growth pattern, in the absence of skin transpiration, suggests apoplastic phloem unloading. However, at VPD values over 3 kPa (e.g. from early afternoon to a peak around 18:00 h), transpiratory losses through the skin (up to 0.25 g fruit-1hr-1) caused fruit to shrink, leading to enhanced phloem and xylem inflows (ca. 0.15 g fruit-1hr-1), a scenario that would correspond to symplastic phloem unloading. Over 24 h the fruit showed a slightly negative total growth, consistent with fruit growth measured in situ during the season at weekly intervals. A few fruit species are known to alter their phloem unloading mechanism, switching from symplastic to apoplastic during the season. Our data support the coexistence in Japanese plum of different phloem unloading strategies within the same day.

ACS Style

Luca Corelli Grappadelli; Brunella Morandi; Luigi Manfrini; Mark O’Connell. Apoplasmic and simplasmic phloem unloading mechanisms: Do they co-exist in Angeleno plums under demanding environmental conditions? Journal of Plant Physiology 2019, 237, 104 -110.

AMA Style

Luca Corelli Grappadelli, Brunella Morandi, Luigi Manfrini, Mark O’Connell. Apoplasmic and simplasmic phloem unloading mechanisms: Do they co-exist in Angeleno plums under demanding environmental conditions? Journal of Plant Physiology. 2019; 237 ():104-110.

Chicago/Turabian Style

Luca Corelli Grappadelli; Brunella Morandi; Luigi Manfrini; Mark O’Connell. 2019. "Apoplasmic and simplasmic phloem unloading mechanisms: Do they co-exist in Angeleno plums under demanding environmental conditions?" Journal of Plant Physiology 237, no. : 104-110.

Journal article
Published: 31 May 2019 in Scientia Horticulturae
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This work tests the possibility to monitor fruit growth as a potential physiological indicator for tree water status and productive performance in apple, for potential implementation in decision support systems for irrigation scheduling. Starting from 10 weeks after full bloom (WAFB), a wide range of plant water statuses was induced in a “Gala” apple orchard by applying different shading (with red-50%, white-50%, and black-20% nets) and irrigation levels (severe-SS, moderate-MS and no-NS stress). For each net*irrigation treatment combination, midday stem water potential (mSWP) was assessed weekly, while fruit diameter variations were continuously monitored using automatic fruit gauges, from 10 WAFB until harvest. Leaf gas exchanges were also monitored at 14 and 16 WAFB. As expected, the different net*irrigation treatment combinations widely affected mSWP, leaf gas exchanges and fruit growth. On all dates of measurement, leaf gas exchanges were tightly correlated with mSWP, while daily fruit growth showed significant but weaker correlations with mSWP. In all cases, these relationships indicated the onset of drought stress below the threshold of about 1.2 g fruit−1 day−1, which corresponded to mSWP below -1 MPa. Almost no correlation was found between mSWP and the other parameters derived from the fruit daily growth pattern (midday, maximum and minimum absolute growth rates (AGR) and fruit shrinkage). Based on these results, we can conclude that, although fruit daily growth rate is not related to mSWP as tightly as leaf gas exchanges, it represents a promising physiological indicator to be implemented in a decision support system for irrigation scheduling. Specific fruit growth thresholds indicating the onset of drought should be defined, depending on the orchard conditions and productive target.

ACS Style

Alexandra Boini; Luigi Manfrini; Gianmarco Bortolotti; Luca Corelli-Grappadelli; Brunella Morandi. Monitoring fruit daily growth indicates the onset of mild drought stress in apple. Scientia Horticulturae 2019, 256, 108520 .

AMA Style

Alexandra Boini, Luigi Manfrini, Gianmarco Bortolotti, Luca Corelli-Grappadelli, Brunella Morandi. Monitoring fruit daily growth indicates the onset of mild drought stress in apple. Scientia Horticulturae. 2019; 256 ():108520.

Chicago/Turabian Style

Alexandra Boini; Luigi Manfrini; Gianmarco Bortolotti; Luca Corelli-Grappadelli; Brunella Morandi. 2019. "Monitoring fruit daily growth indicates the onset of mild drought stress in apple." Scientia Horticulturae 256, no. : 108520.

Original research article
Published: 21 May 2019 in Frontiers in Plant Science
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Image/video processing for fruit detection in the tree using hard-coded feature extraction algorithms has shown high accuracy on fruit detection during recent years. While accurate, these approaches even with high-end hardware are still computationally intensive and too slow for real-time systems. This paper details the use of deep convolution neural networks architecture based on single-stage detectors. Using deep-learning techniques eliminates the need for hard-code specific features for specific fruit shapes, color and/or other attributes. This architecture takes the input image and divides into AxA grid, where A is a configurable hyper-parameter that defines the fineness of the grid. To each grid cell an image detection and localization algorithm is applied. Each of those cells is responsible to predict bounding boxes and confidence score for fruit (apple and pear in the case of this study) detected in that cell. We want this confidence score to be high if a fruit exists in a cell, otherwise to be zero, if no fruit is in the cell. More than 100 images of apple and pear trees were taken. Each tree image with approximately 50 fruits, that at the end resulted on more than 5000 images of apple and pear fruits each. Labeling images for training consisted on manually specifying the bounding boxes for fruits, where (x, y) are the center coordinates of the box and (w, h) are width and height. This architecture showed an accuracy of more than 90% fruit detection. Based on correlation between number of visible fruits, detected fruits on one frame and the real number of fruits on one tree, a model was created to accommodate this error rate. Processing speed is higher than 20 FPS which is fast enough for any grasping/harvesting robotic arm or other real-time applications. HIGHLIGHTS Using new convolutional deep learning techniques based on single-shot detectors to detect and count fruits (apple and pear) within the tree canopy.

ACS Style

Kushtrim Bresilla; Giulio Demetrio Perulli; Alexandra Boini; Brunella Morandi; Luca Corelli Grappadelli; Luigi Manfrini. Single-Shot Convolution Neural Networks for Real-Time Fruit Detection Within the Tree. Frontiers in Plant Science 2019, 10, 611 .

AMA Style

Kushtrim Bresilla, Giulio Demetrio Perulli, Alexandra Boini, Brunella Morandi, Luca Corelli Grappadelli, Luigi Manfrini. Single-Shot Convolution Neural Networks for Real-Time Fruit Detection Within the Tree. Frontiers in Plant Science. 2019; 10 ():611.

Chicago/Turabian Style

Kushtrim Bresilla; Giulio Demetrio Perulli; Alexandra Boini; Brunella Morandi; Luca Corelli Grappadelli; Luigi Manfrini. 2019. "Single-Shot Convolution Neural Networks for Real-Time Fruit Detection Within the Tree." Frontiers in Plant Science 10, no. : 611.

Journal article
Published: 06 May 2019 in Agricultural Water Management
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Irrigation with secondary treated wastewater (STW) as a support to traditional irrigation management is becoming a necessary alternative to addressing issues of water shortage and fertilizer saving. The application of STW on young potted plants of Prunus persica (L.); cv: Big Top, grafted on GF 677, was studied outdoors on two consecutive seasons, during which three different irrigation treatments were compared: 1) irrigation with STW; 2) irrigation with tap water with the addition of mineral fertilizer (TW + MF) and 3) irrigation with tap water (TW). To assess the effects of the different irrigation treatments, tree nutritional status, shoot growth, Stem Cross Sectional Area (SCSA), Trunk Cross Sectional Area (TCSA), leaf gas exchanges, plant water status, fruit growth, fruit yield and quality were monitored during both seasons. Tree nutritional status, vegetative growth, TCSA, cumulative plant photosynthesis, fruit growth and yield were positively influenced by STW irrigation, compared to TW. TW + MF trees showed the highest vegetative growth and vegetative/reproductive ratio. This induced a rise in their water use and a consequent decrease in stem water potential, indicating the onset of water stress conditions. Results indicated that there was no negative effect of STW application on any of the monitored parameters. STW partially improved the plant physiological, nutritional and productive performances due to its intrinsic fertilizing effect. These results encourage further studies on the possibilities to directly use STW as an alternative source for irrigating and fertigating fruit crops even in open field conditions.

ACS Style

Giulio Demetrio Perulli; Kushtrim Bresilla; Luigi Manfrini; Alexandra Boini; Giovambattista Sorrenti; Luca Corelli Grappadelli; Brunella Morandi. Beneficial effect of secondary treated wastewater irrigation on nectarine tree physiology. Agricultural Water Management 2019, 221, 120 -130.

AMA Style

Giulio Demetrio Perulli, Kushtrim Bresilla, Luigi Manfrini, Alexandra Boini, Giovambattista Sorrenti, Luca Corelli Grappadelli, Brunella Morandi. Beneficial effect of secondary treated wastewater irrigation on nectarine tree physiology. Agricultural Water Management. 2019; 221 ():120-130.

Chicago/Turabian Style

Giulio Demetrio Perulli; Kushtrim Bresilla; Luigi Manfrini; Alexandra Boini; Giovambattista Sorrenti; Luca Corelli Grappadelli; Brunella Morandi. 2019. "Beneficial effect of secondary treated wastewater irrigation on nectarine tree physiology." Agricultural Water Management 221, no. : 120-130.

Journal article
Published: 18 April 2019 in Journal of Plant Physiology
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Rootstock vigor is well known to affect yield and productive performance in many fruit crops and the dwarfing trait is often the preferred choice for modern orchard systems thanks to its improved productivity and reduced canopy volume. This work investigates the different physiological responses induced by rootstock vigor on cherry, by comparing shoot and fruit growth, water relations, leaf gas exchanges as well as fruit vascular and transpiration in/outflows of “Black Star” trees grafted on semi-vigorous (CAB6 P) and on semi-dwarfing (Gisela™6) rootstocks. The daily patterns of stem (Ψstem), leaf (Ψleaf) and fruit (Ψfruit) water potential, leaf photosynthesis, stomatal conductance and transpiration, shoot and fruit growth, fruit phloem, xylem and transpiration flows were assessed both in pre- and post-veraison, while productivity and fruit quality were determined at harvest. At both stages, no significant differences were found on Ψleaf, photosynthesis, fruit daily growth rates as well as fruit vascular and transpiration flows, while trees on Gisela™6 showed lower shoot growth rates and lower Ψstem and Ψfruit than trees on CAB6 P. The resulting decrease in stem-to-leaf Ψ gradient on Gisela™6 trees determined a reduction in shoot growth by decreasing shoot strength as sinks for water and carbohydrates. On the other hand, Gisela™6 fruit lowered their Ψfruit thanks to a higher osmotic accumulation and increased their competitiveness towards shoots, as confirmed by the higher productivity and fruit soluble solid content found at harvest for these trees. These results indicate that rootstock vigor alters resource competition between vegetative and reproductive growth, which can affect water use efficiency, yield, and fruit quality.

ACS Style

Brunella Morandi; Luigi Manfrini; Stefano Lugli; Alice Tugnoli; Alexandra Boini; Giulio Demetrio Perulli; Kushtrim Bresilla; Melissa Venturi; Luca Corelli Grappadelli. Sweet cherry water relations and fruit production efficiency are affected by rootstock vigor. Journal of Plant Physiology 2019, 237, 43 -50.

AMA Style

Brunella Morandi, Luigi Manfrini, Stefano Lugli, Alice Tugnoli, Alexandra Boini, Giulio Demetrio Perulli, Kushtrim Bresilla, Melissa Venturi, Luca Corelli Grappadelli. Sweet cherry water relations and fruit production efficiency are affected by rootstock vigor. Journal of Plant Physiology. 2019; 237 ():43-50.

Chicago/Turabian Style

Brunella Morandi; Luigi Manfrini; Stefano Lugli; Alice Tugnoli; Alexandra Boini; Giulio Demetrio Perulli; Kushtrim Bresilla; Melissa Venturi; Luca Corelli Grappadelli. 2019. "Sweet cherry water relations and fruit production efficiency are affected by rootstock vigor." Journal of Plant Physiology 237, no. : 43-50.

Journal article
Published: 16 August 2018 in Agricultural Water Management
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Net shading was explored as a corrective tool for mitigating the effect of a single year drought event on apple (‘Imperial Gala’) yield in Bologna (Italy). In 2013, trees were grown under three nets with different shading levels (red-50%, white-50%, and black-20%) and without nets. Those treatments received three irrigation doses from 60 days after full bloom until harvest: 260 (control), 115 (moderate water stress, WS) and 50 (severe WS) mm of water. Control trees had midday stem water potential (Ψstem) values around -1.0 MPa when they were shaded, but values were more negative when they were grown without nets. Ψstem ranged between -1.0 and -1.5 MPa under moderate WS and was about -1.5 MPa for severe WS although this value was reached sooner in trees grown without nets. Leaf photosynthesis decreased with more negative Ψstem values but was not affected by shading. Yield was very low (3–4 kg per tree) for trees grown without nets with no differences between irrigation treatments. Yield was also very low for shaded trees grown under severe WS (5–7 kg per tree). Under control and moderate WS, shaded trees had higher yields (9–13 kg per tree) than trees grown without nets, but no differences were found between shading. The benefits of net shading on yield were explained by several additive factors: i) improved water status, ii) delay in fruit maturity giving more time to the fruit to grow, and iii) reduction of photo-inhibition. These results may encourage fruit growers to install nets in their orchards when water is limited. Under severe water stress conditions net shading was not effective and low yields are expected. No effect of net colour was observed but its effect may be observed in a longer term. Further research is necessary to determine the sustainability of shading over multiple years.

ACS Style

G. Lopez; A. Boini; L. Manfrini; J.M. Torres-Ruiz; E. Pierpaoli; M. Zibordi; P. Losciale; B. Morandi; Luca Corelli Grappadelli. Effect of shading and water stress on light interception, physiology and yield of apple trees. Agricultural Water Management 2018, 210, 140 -148.

AMA Style

G. Lopez, A. Boini, L. Manfrini, J.M. Torres-Ruiz, E. Pierpaoli, M. Zibordi, P. Losciale, B. Morandi, Luca Corelli Grappadelli. Effect of shading and water stress on light interception, physiology and yield of apple trees. Agricultural Water Management. 2018; 210 ():140-148.

Chicago/Turabian Style

G. Lopez; A. Boini; L. Manfrini; J.M. Torres-Ruiz; E. Pierpaoli; M. Zibordi; P. Losciale; B. Morandi; Luca Corelli Grappadelli. 2018. "Effect of shading and water stress on light interception, physiology and yield of apple trees." Agricultural Water Management 210, no. : 140-148.

Original research article
Published: 05 April 2018 in Frontiers in Plant Science
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Leaf photosynthetic performance of a new red-skinned inter-specific hybrid pear variety called ‘PremP009’ (PIQA®BOO®) is presently unknown and therefore was compared to the Asian pear variety ‘Hosui’. The seasonal growth patterns and the final dry matter accumulation of all tree components were also investigated for both genotypes in their first year of growth after grafting. Leaf gas exchange and tree growth comparisons were assessed using an innovative grafted plant system, which involved a bi-axis tree with the presence of combinations of identical or mixed (one of each genotype) ‘PremP009’ and ‘Hosui’ scion genotypes grafted onto a single clonal rootstock (‘Buerre Hardy’ BA29). This experimental grafted plant system allowed a technique for comparing leaf photosynthesis of two scion genotypes on the same root system, thereby avoiding between-plant differences in plant water relations. ‘PremP009’ had higher leaf photosynthesis and higher leaf mass compared with ‘Hosui.’ However, by the end of the first year of growth, primary shoots of ‘PremP009’ were shorter with fewer nodes, corresponding to less dry weight gain in primary shoot leaves and stems. This vegetative behavior of ‘PremP009’ is likely a response to the smaller individual leaf area in the early season affecting light capture that greatly limits dry matter accumulation of young trees. HIGHLIGHTS - The bi-axis grafting technique never showed before in a scientific paper presents a strategic system for a comparative study of red/green leaf photosynthetic performance and related dry matter partitioning.

ACS Style

Francesca Tozzi; Ben M. Van Hooijdonk; Donald S. Tustin; Luca Corelli Grappadelli; Brunella Morandi; Pasquale Losciale; Luigi Manfrini. Photosynthetic Performance and Vegetative Growth in a New Red Leaf Pear: Comparison of Scion Genotypes Using a Complex, Grafted-Plant System. Frontiers in Plant Science 2018, 9, 1 .

AMA Style

Francesca Tozzi, Ben M. Van Hooijdonk, Donald S. Tustin, Luca Corelli Grappadelli, Brunella Morandi, Pasquale Losciale, Luigi Manfrini. Photosynthetic Performance and Vegetative Growth in a New Red Leaf Pear: Comparison of Scion Genotypes Using a Complex, Grafted-Plant System. Frontiers in Plant Science. 2018; 9 ():1.

Chicago/Turabian Style

Francesca Tozzi; Ben M. Van Hooijdonk; Donald S. Tustin; Luca Corelli Grappadelli; Brunella Morandi; Pasquale Losciale; Luigi Manfrini. 2018. "Photosynthetic Performance and Vegetative Growth in a New Red Leaf Pear: Comparison of Scion Genotypes Using a Complex, Grafted-Plant System." Frontiers in Plant Science 9, no. : 1.

Journal article
Published: 01 April 2018 in Acta Horticulturae
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ACS Style

L. Manfrini; P. Losciale; B. Morandi; E. Pierpaoli; M. Zibordi; S. Anconelli; F. Galli; Luca Corelli Grappadelli. A multi-tool approach for assessing fruit growth, production and plant water status of a pear orchard. Acta Horticulturae 2018, 97 -102.

AMA Style

L. Manfrini, P. Losciale, B. Morandi, E. Pierpaoli, M. Zibordi, S. Anconelli, F. Galli, Luca Corelli Grappadelli. A multi-tool approach for assessing fruit growth, production and plant water status of a pear orchard. Acta Horticulturae. 2018; (1197):97-102.

Chicago/Turabian Style

L. Manfrini; P. Losciale; B. Morandi; E. Pierpaoli; M. Zibordi; S. Anconelli; F. Galli; Luca Corelli Grappadelli. 2018. "A multi-tool approach for assessing fruit growth, production and plant water status of a pear orchard." Acta Horticulturae , no. 1197: 97-102.

Journal article
Published: 01 April 2018 in Acta Horticulturae
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ACS Style

B. Morandi; L. Manfrini; A. Boini; F. Ponzo; Luca Corelli Grappadelli. Effects of mild water shortage on water relations, leaf gas exchanges, fruit growth and vascular flows of two different cherry cultivars. Acta Horticulturae 2018, 127 -132.

AMA Style

B. Morandi, L. Manfrini, A. Boini, F. Ponzo, Luca Corelli Grappadelli. Effects of mild water shortage on water relations, leaf gas exchanges, fruit growth and vascular flows of two different cherry cultivars. Acta Horticulturae. 2018; (1197):127-132.

Chicago/Turabian Style

B. Morandi; L. Manfrini; A. Boini; F. Ponzo; Luca Corelli Grappadelli. 2018. "Effects of mild water shortage on water relations, leaf gas exchanges, fruit growth and vascular flows of two different cherry cultivars." Acta Horticulturae , no. 1197: 127-132.

Journal article
Published: 01 November 2017 in Acta Horticulturae
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ISHS International Symposium on Physiological Principles and Their Application to Fruit Production Conditioning the orchard light environment for greater efficiency and sustainability

ACS Style

Luca Corelli Grappadelli; G. Lopez; Luigi Manfrini; M. Zibord; B. Morandi; R. Bastias; P. Losciale. Conditioning the orchard light environment for greater efficiency and sustainability. Acta Horticulturae 2017, 73 -78.

AMA Style

Luca Corelli Grappadelli, G. Lopez, Luigi Manfrini, M. Zibord, B. Morandi, R. Bastias, P. Losciale. Conditioning the orchard light environment for greater efficiency and sustainability. Acta Horticulturae. 2017; (1177):73-78.

Chicago/Turabian Style

Luca Corelli Grappadelli; G. Lopez; Luigi Manfrini; M. Zibord; B. Morandi; R. Bastias; P. Losciale. 2017. "Conditioning the orchard light environment for greater efficiency and sustainability." Acta Horticulturae , no. 1177: 73-78.

Article
Published: 05 September 2017 in Journal of the Science of Food and Agriculture
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Texture is important in the preferences of apple consumers. Of the pre-harvest factors affecting fruit quality and especially texture, altitude and subsequent climatic conditions are crucial, determining differences in the physiological mechanisms of fruit growth, ripening stage and chemical composition, as demonstrated by several studies. This work applies a detailed sensory-instrumental protocol developed in a previous paper1 to investigate the impact of altitude, time of harvest and their cross-effect on sensory characteristics of apple, with a focus on texture. Sensory differences were found in relation to altitude, although the profile results were mainly affected by the time of harvest. Fruit from lower altitude was described as juicier, crunchier and sweeter than samples from higher altitude, which were floury, sourer and more astringent. Texture performance, soluble solids content and titratable acidity corroborated this sensory description. Moreover, anatomical data showed that fruit from lower altitude had a larger volume, a higher number of cells and a higher percentage of intercellular spaces. We demonstrated that differences between fruit from various altitudes can be perceived through human senses, and that the proposed sensory-instrumental tool can be used to describe such differences. This study brings more understanding about the impact of altitude and time of harvest on apple sensory properties. This work could support apple producers, from semi-mountainous regions (Alpes, Tyrol, etc.), in advertising and valorising their products with their specific characteristics in a more efficient manner.

ACS Style

Mathilde Charles; Maria Laura Corollaro; Luigi Manfrini; Isabella Endrizzi; Eugenio Aprea; Angelo Zanella; Luca Corelli Grappadelli; Flavia Gasperi. Application of a sensory-instrumental tool to study apple texture characteristics shaped by altitude and time of harvest. Journal of the Science of Food and Agriculture 2017, 98, 1095 -1104.

AMA Style

Mathilde Charles, Maria Laura Corollaro, Luigi Manfrini, Isabella Endrizzi, Eugenio Aprea, Angelo Zanella, Luca Corelli Grappadelli, Flavia Gasperi. Application of a sensory-instrumental tool to study apple texture characteristics shaped by altitude and time of harvest. Journal of the Science of Food and Agriculture. 2017; 98 (3):1095-1104.

Chicago/Turabian Style

Mathilde Charles; Maria Laura Corollaro; Luigi Manfrini; Isabella Endrizzi; Eugenio Aprea; Angelo Zanella; Luca Corelli Grappadelli; Flavia Gasperi. 2017. "Application of a sensory-instrumental tool to study apple texture characteristics shaped by altitude and time of harvest." Journal of the Science of Food and Agriculture 98, no. 3: 1095-1104.

Journal article
Published: 01 September 2017 in Acta Horticulturae
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ISHS XIV EUCARPIA Symposium on Fruit Breeding and Genetics Fast and reliable phenotyping of leaf functions: a tool for water stress tolerance evaluation

ACS Style

P. Losciale; Luigi Manfrini; B. Morandi; E. Pierpaoli; M. Zibordi; P.E. Lauri; J.L. Reignard; Luca Corelli Grappadelli. Fast and reliable phenotyping of leaf functions: a tool for water stress tolerance evaluation. Acta Horticulturae 2017, 399 -404.

AMA Style

P. Losciale, Luigi Manfrini, B. Morandi, E. Pierpaoli, M. Zibordi, P.E. Lauri, J.L. Reignard, Luca Corelli Grappadelli. Fast and reliable phenotyping of leaf functions: a tool for water stress tolerance evaluation. Acta Horticulturae. 2017; (1172):399-404.

Chicago/Turabian Style

P. Losciale; Luigi Manfrini; B. Morandi; E. Pierpaoli; M. Zibordi; P.E. Lauri; J.L. Reignard; Luca Corelli Grappadelli. 2017. "Fast and reliable phenotyping of leaf functions: a tool for water stress tolerance evaluation." Acta Horticulturae , no. 1172: 399-404.

Journal article
Published: 01 January 2017 in Acta Horticulturae
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ACS Style

B. Morandi; F. Boselli; A. Boini; L. Manfrini; L. Corelli. The fruit as a potential indicator of plant water status in apple. Acta Horticulturae 2017, 83 -90.

AMA Style

B. Morandi, F. Boselli, A. Boini, L. Manfrini, L. Corelli. The fruit as a potential indicator of plant water status in apple. Acta Horticulturae. 2017; (1150):83-90.

Chicago/Turabian Style

B. Morandi; F. Boselli; A. Boini; L. Manfrini; L. Corelli. 2017. "The fruit as a potential indicator of plant water status in apple." Acta Horticulturae , no. 1150: 83-90.

Journal article
Published: 01 December 2016 in Acta Horticulturae
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ACS Style

P. Losciale; M. Zibordi; L. Manfrini; B. Morandi; E. Pierpaoli; L. Corelli-Grappadelli. Rootstock effect on water consumption in pear ‘Abbé Fetel’. Acta Horticulturae 2016, 403 -408.

AMA Style

P. Losciale, M. Zibordi, L. Manfrini, B. Morandi, E. Pierpaoli, L. Corelli-Grappadelli. Rootstock effect on water consumption in pear ‘Abbé Fetel’. Acta Horticulturae. 2016; (1130):403-408.

Chicago/Turabian Style

P. Losciale; M. Zibordi; L. Manfrini; B. Morandi; E. Pierpaoli; L. Corelli-Grappadelli. 2016. "Rootstock effect on water consumption in pear ‘Abbé Fetel’." Acta Horticulturae , no. 1130: 403-408.

Journal article
Published: 01 December 2016 in Acta Horticulturae
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ACS Style

P.é. Lauri; P. Losciale; M. Zibordi; L. Manfrini; L. Corelli-Grappadelli; J.L. Regnard; E. Costes. Responses of young apple trees to soil water restriction: combining shoot morphology and leaf functioning over a range of genotypes. Acta Horticulturae 2016, 473 -478.

AMA Style

P.é. Lauri, P. Losciale, M. Zibordi, L. Manfrini, L. Corelli-Grappadelli, J.L. Regnard, E. Costes. Responses of young apple trees to soil water restriction: combining shoot morphology and leaf functioning over a range of genotypes. Acta Horticulturae. 2016; (1130):473-478.

Chicago/Turabian Style

P.é. Lauri; P. Losciale; M. Zibordi; L. Manfrini; L. Corelli-Grappadelli; J.L. Regnard; E. Costes. 2016. "Responses of young apple trees to soil water restriction: combining shoot morphology and leaf functioning over a range of genotypes." Acta Horticulturae , no. 1130: 473-478.

Journal article
Published: 01 December 2016 in Acta Horticulturae
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ACS Style

B. Morandi; L. Manfrini; M. Zibordi; L. Corelli-Grappadelli; P. Losciale. From fruit anatomical features to fruit growth strategy: is there a relationship? Acta Horticulturae 2016, 185 -192.

AMA Style

B. Morandi, L. Manfrini, M. Zibordi, L. Corelli-Grappadelli, P. Losciale. From fruit anatomical features to fruit growth strategy: is there a relationship? Acta Horticulturae. 2016; (1130):185-192.

Chicago/Turabian Style

B. Morandi; L. Manfrini; M. Zibordi; L. Corelli-Grappadelli; P. Losciale. 2016. "From fruit anatomical features to fruit growth strategy: is there a relationship?" Acta Horticulturae , no. 1130: 185-192.