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Almond [Prunus dulcis Miller (D.A. Webb)] is the main tree nut species worldwide. Here, genotyping-by-sequencing (GBS) was applied to 149 almond cultivars from the ex situ collections of the Italian Council for Agricultural Research (CREA) and the Spanish National Research Council (CSIC), leading to the detection of 93,119 single-nucleotide polymorphisms (SNPs). The study of population structure outlined four distinct genetic groups and highlighted diversification between the Mediterranean and Californian gene pools. Data on SNP diversity and runs of homozygosity (ROHs) allowed the definition of kinship, inbreeding, and linkage disequilibrium (LD) decay in almond cultivated germplasm. Four-year phenotypic observations, gathered on 98 cultivars of the CREA collection, were used to perform a genome-wide association study (GWAS) and, for the first time in a crop species, homozygosity mapping (HM), resulting in the identification of genomic associations with nut, shell, and seed weight. Both GWAS and HM suggested that loci controlling nut and seed weight are mostly independent. Overall, this study provides insights on the almond cultivation history and delivers information of major interest for almond genetics and breeding. In a broader perspective, our results encourage the use of ROHs in crop science to estimate inbreeding, choose parental combinations minimizing the risk of inbreeding depression, and identify genomic footprints of selection for specific traits.
Stefano Pavan; Chiara Delvento; Rosa Mazzeo; Francesca Ricciardi; Pasquale Losciale; Liliana Gaeta; Nunzio D’Agostino; Francesca Taranto; Raquel Sánchez-Pérez; Luigi Ricciardi; Concetta Lotti. Almond diversity and homozygosity define structure, kinship, inbreeding, and linkage disequilibrium in cultivated germplasm, and reveal genomic associations with nut and seed weight. Horticulture Research 2021, 8, 1 -12.
AMA StyleStefano Pavan, Chiara Delvento, Rosa Mazzeo, Francesca Ricciardi, Pasquale Losciale, Liliana Gaeta, Nunzio D’Agostino, Francesca Taranto, Raquel Sánchez-Pérez, Luigi Ricciardi, Concetta Lotti. Almond diversity and homozygosity define structure, kinship, inbreeding, and linkage disequilibrium in cultivated germplasm, and reveal genomic associations with nut and seed weight. Horticulture Research. 2021; 8 (1):1-12.
Chicago/Turabian StyleStefano Pavan; Chiara Delvento; Rosa Mazzeo; Francesca Ricciardi; Pasquale Losciale; Liliana Gaeta; Nunzio D’Agostino; Francesca Taranto; Raquel Sánchez-Pérez; Luigi Ricciardi; Concetta Lotti. 2021. "Almond diversity and homozygosity define structure, kinship, inbreeding, and linkage disequilibrium in cultivated germplasm, and reveal genomic associations with nut and seed weight." Horticulture Research 8, no. 1: 1-12.
There is little information about the role of red and blue light on leaf morphology and physiology in fruit trees, and more studies have been developed in herbaceous plants grown under controlled light conditions. The objective of this research was to evaluate the effect of red and blue screens on morpho-anatomy and gas exchange in apple leaves grown under ambient sunlight conditions. Apple trees cv. Fuji were covered by 40% red and blue nets, leaving trees with 20% white net as control. Light relations (photosynthetic photon flux density, PPFD; red to far-red light ratio, R/FR and blue to red light ratio, B/R), morpho-anatomical features of the leaf (palisade to spongy mesophyll ratio, P/S, and stomata density, SD) and leaf gas exchange (net photosynthesis rate, An; stomatal conductance, gs; transpiration rate, E; and intrinsic water use efficiency, IWUE) were evaluated. Red and blue nets reduced 27% PPFD, reducing by 20% SD and 25% P/S compared to control, but without negative effects on An and gs. Blue net increased gs 21%, leading to the highest E and lowest IWUE by increment of B/R light proportion. These findings demonstrate the potential use of red and blue nets for differential modulation of apple leaf gas exchange through sunlight management under field conditions.
Richard M. Bastías; Pasquale Losciale; Camilla Chieco; Luca Corelli-Grappadelli. Red and Blue Netting Alters Leaf Morphological and Physiological Characteristics in Apple Trees. Plants 2021, 10, 127 .
AMA StyleRichard M. Bastías, Pasquale Losciale, Camilla Chieco, Luca Corelli-Grappadelli. Red and Blue Netting Alters Leaf Morphological and Physiological Characteristics in Apple Trees. Plants. 2021; 10 (1):127.
Chicago/Turabian StyleRichard M. Bastías; Pasquale Losciale; Camilla Chieco; Luca Corelli-Grappadelli. 2021. "Red and Blue Netting Alters Leaf Morphological and Physiological Characteristics in Apple Trees." Plants 10, no. 1: 127.
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.
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 StylePasquale 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 StylePasquale 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.
Liliana Gaeta; Anna Maria Stellacci; Pasquale Losciale. Evaluation of three modelling approaches for almond blooming in Mediterranean climate conditions. European Journal of Agronomy 2018, 97, 1 -10.
AMA StyleLiliana Gaeta, Anna Maria Stellacci, Pasquale Losciale. Evaluation of three modelling approaches for almond blooming in Mediterranean climate conditions. European Journal of Agronomy. 2018; 97 ():1-10.
Chicago/Turabian StyleLiliana Gaeta; Anna Maria Stellacci; Pasquale Losciale. 2018. "Evaluation of three modelling approaches for almond blooming in Mediterranean climate conditions." European Journal of Agronomy 97, no. : 1-10.
Pierre-Éric Lauri; Têtè Sévérien Barigah; Gerardo Lopez; Sébastien Martinez; Pasquale Losciale; Marco Zibordi; Luigi Manfrini; Luca Corelli-Grappadelli; Evelyne Costes; Jean-Luc Regnard. Erratum to: Genetic variability and phenotypic plasticity of apple morphological responses to soil water restriction in relation with leaf functions and stem xylem conductivity. Trees 2016, 30, 1909 -1910.
AMA StylePierre-Éric Lauri, Têtè Sévérien Barigah, Gerardo Lopez, Sébastien Martinez, Pasquale Losciale, Marco Zibordi, Luigi Manfrini, Luca Corelli-Grappadelli, Evelyne Costes, Jean-Luc Regnard. Erratum to: Genetic variability and phenotypic plasticity of apple morphological responses to soil water restriction in relation with leaf functions and stem xylem conductivity. Trees. 2016; 30 (5):1909-1910.
Chicago/Turabian StylePierre-Éric Lauri; Têtè Sévérien Barigah; Gerardo Lopez; Sébastien Martinez; Pasquale Losciale; Marco Zibordi; Luigi Manfrini; Luca Corelli-Grappadelli; Evelyne Costes; Jean-Luc Regnard. 2016. "Erratum to: Genetic variability and phenotypic plasticity of apple morphological responses to soil water restriction in relation with leaf functions and stem xylem conductivity." Trees 30, no. 5: 1909-1910.
Key message In drought-stressed apple, leaf area decrease and stem growth cessation increase are key determinants of drought avoidance. Both the genotype and its possible phenotypic plasticity contribute to the variability of responses. Under soil water restriction, plant growth is impaired by the indirect negative impact on plant carbon balance of stomata closure and hydraulic failure. The relative contributions of these two phenomena have been scarcely explored in trees under different drought-stress intensities, and even less work is published which accounts for genetic variability and phenotypic plasticity. Working on 21 apple genotypes from the same progeny, we assessed the effects of two consecutive periods of soil drought, moderate and severe, on growth and functional patterns of leaf and stem. Leaf area decreased while temporary stem growth cessation increased under drought with strong variations depending on the genotype. These results suggested that both reduction of transpiring leaf area and leaf organogenesis are key determinants for drought avoidance in the apple. Results also confirmed the pivotal role of stomatal conductance (g s) in maintaining percent loss of conductivity of the stem xylem (PLC) under values for runaway embolism (ca. 14 % under severe drought). The sorting of genotypes according to their morphological response to drought showed that genotypes with high reduction of growth were characterized by similar g s but lower PLC than genotypes with medium and low reduction of growth. This suggests that for a given level of stomatal closure the drought-related reduction of leaf area could also limit the progression of cavitation in stem xylem. As a whole, the variability of morphological responses of apple genotypes to contrasted drought conditions indicated that both genetic variability and phenotypic plasticity are involved in the range of iso-anisohydry documented for this species.
Pierre-Éric Lauri; Têtè Sévérien Barigah; Gerardo Lopez; Sébastien Martinez; Pasquale Losciale; Marco Zibordi; Luigi Manfrini; Luca Corelli-Grappadelli; Evelyne Costes; Jean-Luc Regnard. Genetic variability and phenotypic plasticity of apple morphological responses to soil water restriction in relation with leaf functions and stem xylem conductivity. Trees 2016, 30, 1893 -1908.
AMA StylePierre-Éric Lauri, Têtè Sévérien Barigah, Gerardo Lopez, Sébastien Martinez, Pasquale Losciale, Marco Zibordi, Luigi Manfrini, Luca Corelli-Grappadelli, Evelyne Costes, Jean-Luc Regnard. Genetic variability and phenotypic plasticity of apple morphological responses to soil water restriction in relation with leaf functions and stem xylem conductivity. Trees. 2016; 30 (5):1893-1908.
Chicago/Turabian StylePierre-Éric Lauri; Têtè Sévérien Barigah; Gerardo Lopez; Sébastien Martinez; Pasquale Losciale; Marco Zibordi; Luigi Manfrini; Luca Corelli-Grappadelli; Evelyne Costes; Jean-Luc Regnard. 2016. "Genetic variability and phenotypic plasticity of apple morphological responses to soil water restriction in relation with leaf functions and stem xylem conductivity." Trees 30, no. 5: 1893-1908.
The detection of leaf functionality is of pivotal importance for plant scientists from both theoretical and practical point of view. Leaves are the sources of dry matter and food, and they sequester CO2 as well. Under the perspective of climate change and primary resource scarcity (i.e. water, fertilizers and soil), assessing leaf photo-assimilation in a rapid but comprehensive way can be helpful for understanding plant behavior under different environmental conditions and for managing the agricultural practices properly. Several approaches have been proposed for this goal, however, some of them resulted very efficient but little reliable. On the other hand, the high reliability and exhaustive information of some models used for estimating net photosynthesis are at the expense of time and ease of measurement. The present study employs a multivariate statistical approach to assess a model aiming at estimating leaf photo-assimilation performance, using few and easy-to-measure variables. The model, parameterized for apple and pear and subjected to internal and external cross validation, involves chlorophyll fluorescence, carboxylative activity of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCo), air and leaf temperature. Results prove that this is a fair-predictive model allowing reliable variable assessment. The dependent variable, called IPL index, was found strongly and linearly correlated to net photosynthesis. IPL and the model behind it seem to be (1) reliable, (2) easy and fast to measure and (3) usable in vivo and in the field for such cases where high amount of data is required (e.g. precision agriculture and phenotyping studies)
Pasquale Losciale; Luigi Manfrini; Brunella Morandi; Emanuele Pierpaoli; Marco Zibordi; Anna Maria Stellacci; Luca Salvati; Luca Corelli Grappadelli. A multivariate approach for assessing leaf photo-assimilation performance using the IPLindex. Physiologia Plantarum 2015, 154, 609 -620.
AMA StylePasquale Losciale, Luigi Manfrini, Brunella Morandi, Emanuele Pierpaoli, Marco Zibordi, Anna Maria Stellacci, Luca Salvati, Luca Corelli Grappadelli. A multivariate approach for assessing leaf photo-assimilation performance using the IPLindex. Physiologia Plantarum. 2015; 154 (4):609-620.
Chicago/Turabian StylePasquale Losciale; Luigi Manfrini; Brunella Morandi; Emanuele Pierpaoli; Marco Zibordi; Anna Maria Stellacci; Luca Salvati; Luca Corelli Grappadelli. 2015. "A multivariate approach for assessing leaf photo-assimilation performance using the IPLindex." Physiologia Plantarum 154, no. 4: 609-620.
M. Zibordi; L. Manfrini; P. Losciale; E. Pierpaoli; L. Corelli Grappadelli; B. Morandi. WEATHER EFFECTS ON CANOPY GAS EXCHANGES, FRUIT GROWTH AND VASCULAR FLOWS IN APPLE DURING SPRING AND POSSIBLE CONSEQUENCES ON ORCHARD PERFORMANCE. Acta Horticulturae 2014, 343 -349.
AMA StyleM. Zibordi, L. Manfrini, P. Losciale, E. Pierpaoli, L. Corelli Grappadelli, B. Morandi. WEATHER EFFECTS ON CANOPY GAS EXCHANGES, FRUIT GROWTH AND VASCULAR FLOWS IN APPLE DURING SPRING AND POSSIBLE CONSEQUENCES ON ORCHARD PERFORMANCE. Acta Horticulturae. 2014; (1058):343-349.
Chicago/Turabian StyleM. Zibordi; L. Manfrini; P. Losciale; E. Pierpaoli; L. Corelli Grappadelli; B. Morandi. 2014. "WEATHER EFFECTS ON CANOPY GAS EXCHANGES, FRUIT GROWTH AND VASCULAR FLOWS IN APPLE DURING SPRING AND POSSIBLE CONSEQUENCES ON ORCHARD PERFORMANCE." Acta Horticulturae , no. 1058: 343-349.
P. Losciale; L. Manfrini; B. Morandi; B. Novak; E. Pierpaoli; M. Zibordi; L. Corelli Grappadelli; S. Anconelli; F. Galli. WATER RESTRICTION EFFECT ON PEAR ROOTSTOCKS: PHOTOPROTECTIVE PROCESSES AND THE POSSIBLE ROLE OF PHOTORESPIRATION IN LIMITING CARBON ASSIMILATION. Acta Horticulturae 2014, 237 -244.
AMA StyleP. Losciale, L. Manfrini, B. Morandi, B. Novak, E. Pierpaoli, M. Zibordi, L. Corelli Grappadelli, S. Anconelli, F. Galli. WATER RESTRICTION EFFECT ON PEAR ROOTSTOCKS: PHOTOPROTECTIVE PROCESSES AND THE POSSIBLE ROLE OF PHOTORESPIRATION IN LIMITING CARBON ASSIMILATION. Acta Horticulturae. 2014; (1058):237-244.
Chicago/Turabian StyleP. Losciale; L. Manfrini; B. Morandi; B. Novak; E. Pierpaoli; M. Zibordi; L. Corelli Grappadelli; S. Anconelli; F. Galli. 2014. "WATER RESTRICTION EFFECT ON PEAR ROOTSTOCKS: PHOTOPROTECTIVE PROCESSES AND THE POSSIBLE ROLE OF PHOTORESPIRATION IN LIMITING CARBON ASSIMILATION." Acta Horticulturae , no. 1058: 237-244.
Drought stress negatively affects many physiological parameters and determines lower yields and fruit size. This paper investigates on the effects of prolonged water restriction on leaf gas exchanges, water relations and fruit growth on a 24-h time-scale in order to understand how different physiological processes interact to each other to face increasing drought stress and affect pear productive performances during the season. The diurnal patterns of tree water relations, leaf gas exchanges, fruit growth, fruit vascular and transpiration flows were monitored at about 50, 95 and 145 days after full bloom (DAFB) on pear trees of the cv. Abbé Fétel, subjected to two irrigation regimes, corresponding to a water restitution of 100% and 25% of the estimated Etc, respectively. Drought stress progressively increased during the season due to lower soil tensions and higher daily vapour pressure deficits (VPDs). Stem water potential was the first parameter to be negatively affected by stress and determined the simultaneous reduction of fruit xylem flow, which at 95 DAFB was reflected by a decrease in fruit daily growth. Leaf photosynthesis was reduced only from 95 DAFB on, but was not immediately reflected by a decrease in fruit phloem flow, which instead was reduced only at 145 DAFB. This work shows how water stress negatively affects pear fruit growth by reducing first its xylem and then its phloem inflow. This determines a progressive increase in the phloem relative contribution to growth, which lead to the typical higher dry matter percentages of stressed fruit.
Brunella Morandi; Pasquale Losciale; Luigi Manfrini; Marco Zibordi; Stefano Anconelli; Fabio Galli; Emanuele Pierpaoli; Luca Corelli Grappadelli. Increasing water stress negatively affects pear fruit growth by reducing first its xylem and then its phloem inflow. Journal of Plant Physiology 2014, 171, 1500 -1509.
AMA StyleBrunella Morandi, Pasquale Losciale, Luigi Manfrini, Marco Zibordi, Stefano Anconelli, Fabio Galli, Emanuele Pierpaoli, Luca Corelli Grappadelli. Increasing water stress negatively affects pear fruit growth by reducing first its xylem and then its phloem inflow. Journal of Plant Physiology. 2014; 171 (16):1500-1509.
Chicago/Turabian StyleBrunella Morandi; Pasquale Losciale; Luigi Manfrini; Marco Zibordi; Stefano Anconelli; Fabio Galli; Emanuele Pierpaoli; Luca Corelli Grappadelli. 2014. "Increasing water stress negatively affects pear fruit growth by reducing first its xylem and then its phloem inflow." Journal of Plant Physiology 171, no. 16: 1500-1509.
Brunella Morandi; Pasquale Losciale; Luigi Manfrini; Marco Zibordi; Stefano Anconelli; Emanuele Pierpaoli; Luca Corelli Grappadelli. Leaf gas exchanges and water relations affect the daily patterns of fruit growth and vascular flows in Abbé Fétel pear (Pyrus communis L.) trees. Scientia Horticulturae 2014, 178, 106 -113.
AMA StyleBrunella Morandi, Pasquale Losciale, Luigi Manfrini, Marco Zibordi, Stefano Anconelli, Emanuele Pierpaoli, Luca Corelli Grappadelli. Leaf gas exchanges and water relations affect the daily patterns of fruit growth and vascular flows in Abbé Fétel pear (Pyrus communis L.) trees. Scientia Horticulturae. 2014; 178 ():106-113.
Chicago/Turabian StyleBrunella Morandi; Pasquale Losciale; Luigi Manfrini; Marco Zibordi; Stefano Anconelli; Emanuele Pierpaoli; Luca Corelli Grappadelli. 2014. "Leaf gas exchanges and water relations affect the daily patterns of fruit growth and vascular flows in Abbé Fétel pear (Pyrus communis L.) trees." Scientia Horticulturae 178, no. : 106-113.
B. Morandi; S. Anconelli; P. Losciale; L. Manfrini; E. Pierpaoli; M. Zibordi; L. Corelli Grappadelli. HOW IRRIGATION LEVEL AFFECTS THE DAILY GROWTH PATTERN OF YOUNG PEAR FRUIT OF THE CV. 'ABBÉ FETEL'. Acta Horticulturae 2014, 163 -169.
AMA StyleB. Morandi, S. Anconelli, P. Losciale, L. Manfrini, E. Pierpaoli, M. Zibordi, L. Corelli Grappadelli. HOW IRRIGATION LEVEL AFFECTS THE DAILY GROWTH PATTERN OF YOUNG PEAR FRUIT OF THE CV. 'ABBÉ FETEL'. Acta Horticulturae. 2014; (1038):163-169.
Chicago/Turabian StyleB. Morandi; S. Anconelli; P. Losciale; L. Manfrini; E. Pierpaoli; M. Zibordi; L. Corelli Grappadelli. 2014. "HOW IRRIGATION LEVEL AFFECTS THE DAILY GROWTH PATTERN OF YOUNG PEAR FRUIT OF THE CV. 'ABBÉ FETEL'." Acta Horticulturae , no. 1038: 163-169.
P. Losciale; L. Manfrini; B. Morandi; E. Pierpaoli; M. Zibordi; E. Muzzi; L. Corelli Grappadelli. A PROMISING TOOL FOR EARLY AND QUICK EVALUATION OF WATER STRESS TOLERANCE IN APPLE GENOTYPES. Acta Horticulturae 2014, 59 -66.
AMA StyleP. Losciale, L. Manfrini, B. Morandi, E. Pierpaoli, M. Zibordi, E. Muzzi, L. Corelli Grappadelli. A PROMISING TOOL FOR EARLY AND QUICK EVALUATION OF WATER STRESS TOLERANCE IN APPLE GENOTYPES. Acta Horticulturae. 2014; (1038):59-66.
Chicago/Turabian StyleP. Losciale; L. Manfrini; B. Morandi; E. Pierpaoli; M. Zibordi; E. Muzzi; L. Corelli Grappadelli. 2014. "A PROMISING TOOL FOR EARLY AND QUICK EVALUATION OF WATER STRESS TOLERANCE IN APPLE GENOTYPES." Acta Horticulturae , no. 1038: 59-66.
ISHS VII International Symposium on Irrigation of Horticultural Crops ROOTSTOCK AND WATER RESTRICTION EFFECTS ON LEAF PERFORMANCE AND FRUIT GROWTH IN PEAR, CV. 'ABB
P. Losciale; S. Anconelli; F. Galli; L. Manfrini; B. Morandi; B. Novak; E. Pierpaoli; M. Zibordi; L. Corelli Grappadelli. ROOTSTOCK AND WATER RESTRICTION EFFECTS ON LEAF PERFORMANCE AND FRUIT GROWTH IN PEAR, CV. 'ABBÉ FETEL', GRAFTED ON DIFFERENT QUINCE ROOTSTOCKS. Acta Horticulturae 2014, 429 -435.
AMA StyleP. Losciale, S. Anconelli, F. Galli, L. Manfrini, B. Morandi, B. Novak, E. Pierpaoli, M. Zibordi, L. Corelli Grappadelli. ROOTSTOCK AND WATER RESTRICTION EFFECTS ON LEAF PERFORMANCE AND FRUIT GROWTH IN PEAR, CV. 'ABBÉ FETEL', GRAFTED ON DIFFERENT QUINCE ROOTSTOCKS. Acta Horticulturae. 2014; (1038):429-435.
Chicago/Turabian StyleP. Losciale; S. Anconelli; F. Galli; L. Manfrini; B. Morandi; B. Novak; E. Pierpaoli; M. Zibordi; L. Corelli Grappadelli. 2014. "ROOTSTOCK AND WATER RESTRICTION EFFECTS ON LEAF PERFORMANCE AND FRUIT GROWTH IN PEAR, CV. 'ABBÉ FETEL', GRAFTED ON DIFFERENT QUINCE ROOTSTOCKS." Acta Horticulturae , no. 1038: 429-435.
Using radioactively labelled amino acids to investigate repair of photoinactivated photosystem II (PS II) gives only a relative rate of repair, while using chlorophyll fluorescence parameters yields a repair rate coefficient for an undefined, variable location within the leaf tissue. Here, we report on a whole-tissue determination of the rate coefficient of photoinactivation k i , and that of repair k r in cotton leaf discs. The method assays functional PS II via a P700 kinetics area associated with PS I, as induced by a single-turnover, saturating flash superimposed on continuous background far-red light. The P700 kinetics area, directly proportional to the oxygen yield per single-turnover, saturating flash, was used to obtain both k i and k r . The value of k i , directly proportional to irradiance, was slightly higher when CO2 diffusion into the abaxial surface (richer in stomata) was blocked by contact with water. The value of k r , sizable in darkness, changed in the light depending on which surface was blocked by contact with water. When the abaxial surface was blocked, k r first peaked at moderate irradiance and then decreased at high irradiance. When the adaxial surface was blocked, k r first increased at low irradiance, then plateaued, before increasing markedly at high irradiance. At the highest irradiance, k r differed by an order of magnitude between the two orientations, attributable to different extents of oxidative stress affecting repair (Nishiyama et al., EMBO J 20: 5587-5594, 2001). The method is a whole-tissue, convenient determination of the rate coefficient of photoinactivation k i and that of repair k r .
Yuan-Yuan Hu; Da-Yong Fan; Pasquale Losciale; Wah Soon Chow; Wang-Feng Zhang. Whole-tissue determination of the rate coefficients of photoinactivation and repair of photosystem II in cotton leaf discs based on flash-induced P700 redox kinetics. Photosynthesis Research 2013, 117, 517 -528.
AMA StyleYuan-Yuan Hu, Da-Yong Fan, Pasquale Losciale, Wah Soon Chow, Wang-Feng Zhang. Whole-tissue determination of the rate coefficients of photoinactivation and repair of photosystem II in cotton leaf discs based on flash-induced P700 redox kinetics. Photosynthesis Research. 2013; 117 (1-3):517-528.
Chicago/Turabian StyleYuan-Yuan Hu; Da-Yong Fan; Pasquale Losciale; Wah Soon Chow; Wang-Feng Zhang. 2013. "Whole-tissue determination of the rate coefficients of photoinactivation and repair of photosystem II in cotton leaf discs based on flash-induced P700 redox kinetics." Photosynthesis Research 117, no. 1-3: 517-528.
P. Losciale; B. Morandi; L. Manfrini; M. Zibordi; E. Pierpaoli; L. Corelli Grappadelli; W.S. Chow. INCOMING ENERGY MANAGEMENT AND PHOTOINACTIVATION AS A FUNCTION OF LIGHT INTERCEPTION IN PEACH LEAVES. Acta Horticulturae 2012, 147 -153.
AMA StyleP. Losciale, B. Morandi, L. Manfrini, M. Zibordi, E. Pierpaoli, L. Corelli Grappadelli, W.S. Chow. INCOMING ENERGY MANAGEMENT AND PHOTOINACTIVATION AS A FUNCTION OF LIGHT INTERCEPTION IN PEACH LEAVES. Acta Horticulturae. 2012; (940):147-153.
Chicago/Turabian StyleP. Losciale; B. Morandi; L. Manfrini; M. Zibordi; E. Pierpaoli; L. Corelli Grappadelli; W.S. Chow. 2012. "INCOMING ENERGY MANAGEMENT AND PHOTOINACTIVATION AS A FUNCTION OF LIGHT INTERCEPTION IN PEACH LEAVES." Acta Horticulturae , no. 940: 147-153.
ISHS XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on Emerging Health Topics in Fruits and Vegetables EFFECTS OF PHOTOSELECTIVE NETS ON PHENOLIC COMPOSITION IN APPLE FRUITS
R.M. Bastías; K. Ruiz; L. Manfrini; E. Pierpaoli; M. Zibordi; B. Morandi; P. Losciale; P. Torrigiani; L. Corelli-Grappadelli. EFFECTS OF PHOTOSELECTIVE NETS ON PHENOLIC COMPOSITION IN APPLE FRUITS. Acta Horticulturae 2012, 77 -83.
AMA StyleR.M. Bastías, K. Ruiz, L. Manfrini, E. Pierpaoli, M. Zibordi, B. Morandi, P. Losciale, P. Torrigiani, L. Corelli-Grappadelli. EFFECTS OF PHOTOSELECTIVE NETS ON PHENOLIC COMPOSITION IN APPLE FRUITS. Acta Horticulturae. 2012; (939):77-83.
Chicago/Turabian StyleR.M. Bastías; K. Ruiz; L. Manfrini; E. Pierpaoli; M. Zibordi; B. Morandi; P. Losciale; P. Torrigiani; L. Corelli-Grappadelli. 2012. "EFFECTS OF PHOTOSELECTIVE NETS ON PHENOLIC COMPOSITION IN APPLE FRUITS." Acta Horticulturae , no. 939: 77-83.
B. Morandi; P. Losciale; L. Manfrini; M. Zibordi; L. Corelli Grappadelli. VARIATIONS IN THE ORCHARD ENVIRONMENTAL CONDITIONS AFFECT VASCULAR AND TRANSPIRATION FLOWS TO/FROM PEACH FRUIT. Acta Horticulturae 2012, 395 -401.
AMA StyleB. Morandi, P. Losciale, L. Manfrini, M. Zibordi, L. Corelli Grappadelli. VARIATIONS IN THE ORCHARD ENVIRONMENTAL CONDITIONS AFFECT VASCULAR AND TRANSPIRATION FLOWS TO/FROM PEACH FRUIT. Acta Horticulturae. 2012; (962):395-401.
Chicago/Turabian StyleB. Morandi; P. Losciale; L. Manfrini; M. Zibordi; L. Corelli Grappadelli. 2012. "VARIATIONS IN THE ORCHARD ENVIRONMENTAL CONDITIONS AFFECT VASCULAR AND TRANSPIRATION FLOWS TO/FROM PEACH FRUIT." Acta Horticulturae , no. 962: 395-401.
Weather conditions are known to affect many physiological parameters like canopy gas exchanges, tree water relations and fruit growth. However, their effects may be different depending on plant species and developmental stage. This study investigates the effects of sudden weather worsening on the daily dynamics of kiwifruit berry growth, at different times during the season. Phloem, xylem and transpiration flows to/from the berry were continuously monitored for several days at about 5, 9, 11 and 15 weeks after full bloom (WAFB), on two consecutive years, while air temperature, relative humidity, solar radiation and rain were simultaneously recorded. From these data vapour pressure deficit (VPD) was also calculated. For each period considered, the daily amounts and the daily patterns of kiwifruit berry relative growth rate (RGR) and vascular flows were compared between two subsequent days having high (HVPD) and low (LVPD) mean VPDs, respectively. During all periods, daily water exchanges were linearly related to VPD although these relationships showed decreasing slopes during the season. At 5 and 9 WAFB daily and hourly rates of xylem and transpiration flows were highly reduced by LVPD conditions, while phloem flow was not affected by such changes during the whole season. Also, LVPD conditions affected the typical daily fluctuations in the berry RGR by reducing its morning shrinkage and slowing down its afternoon growth rates. This study shows how in the early stages of kiwifruit berry growth, weather worsening highly reduces the berry water exchanges by xylem and transpiration, but does not affect its phloem imports in the short-period.
Brunella Morandi; Pasquale Losciale; Luigi Manfrini; Emanuele Pierpaoli; Marco Zibordi; Luca Corelli Grappadelli. Short-period changes in weather conditions affect xylem, but not phloem flows to young kiwifruit (Actinidia deliciosa) berries. Scientia Horticulturae 2012, 142, 74 -83.
AMA StyleBrunella Morandi, Pasquale Losciale, Luigi Manfrini, Emanuele Pierpaoli, Marco Zibordi, Luca Corelli Grappadelli. Short-period changes in weather conditions affect xylem, but not phloem flows to young kiwifruit (Actinidia deliciosa) berries. Scientia Horticulturae. 2012; 142 ():74-83.
Chicago/Turabian StyleBrunella Morandi; Pasquale Losciale; Luigi Manfrini; Emanuele Pierpaoli; Marco Zibordi; Luca Corelli Grappadelli. 2012. "Short-period changes in weather conditions affect xylem, but not phloem flows to young kiwifruit (Actinidia deliciosa) berries." Scientia Horticulturae 142, no. : 74-83.
B. Morandi; P. Losciale; L. Manfrini; M. Zibordi; E. Pierpaoli; L. Corelli Grappadelli. HOW CHANGES IN WEATHER CONDITIONS AFFECT GROWTH, VASCULAR AND TRANSPIRATION FLOWS IN YOUNG APPLE FRUIT. Acta Horticulturae 2012, 139 -146.
AMA StyleB. Morandi, P. Losciale, L. Manfrini, M. Zibordi, E. Pierpaoli, L. Corelli Grappadelli. HOW CHANGES IN WEATHER CONDITIONS AFFECT GROWTH, VASCULAR AND TRANSPIRATION FLOWS IN YOUNG APPLE FRUIT. Acta Horticulturae. 2012; (951):139-146.
Chicago/Turabian StyleB. Morandi; P. Losciale; L. Manfrini; M. Zibordi; E. Pierpaoli; L. Corelli Grappadelli. 2012. "HOW CHANGES IN WEATHER CONDITIONS AFFECT GROWTH, VASCULAR AND TRANSPIRATION FLOWS IN YOUNG APPLE FRUIT." Acta Horticulturae , no. 951: 139-146.