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This study aimed to evaluate the effect of organic substrates on the growth yield, photosynthetic response, and nutritional profile of red leaf lettuce grown in different compositions of cocopeat (CP), sawdust (SD), and rice husk (RH). The result showed that the properties of substrates were influenced variably by their mixing ratios. The highest water holding capacity and moisture content were found in CP, and it provided the preferable pH, electrical conductivity, bulk density, and air-filled porosity in association with other categories of the substrate. Cocopeat-based media provides ample microclimate conditions in the root region of plants and increased their height, number of leaves, and fresh biomass components. The utmost dry biomass of plant parts also remarkably increased in CP; L*, a*, and b* chromaticity of leaves remained unchanged. The maximum chlorophyll content was attained in CP substrate, except for chlorophyll a/b, which was higher in RH. The net photosynthetic rate (PN), transpiration rate (E), and nitrate in leaves were enhanced substantially in CP, while it was lower in SD. Biochemical compositions and nutrients in leaves were likewise stimulated under the culture of cocopeat-based media. Results indicate that cocopeat, sawdust, and rice husk are a possible substrates mixture in a volume ratio of 3:1:1, which would be a better choice in the cultivation of red leaf lettuce.
Dulal Sarkar; Rahman; Jasim Uddain; Quamruzzaman; Obyedul Kalam Azad; Rahman; Jahirul Islam; Mohammed Rahman; Ki-Young Choi; Most Naznin. Estimation of Yield, Photosynthetic Rate, Biochemical, and Nutritional Content of Red Leaf Lettuce (Lactuca sativa L.) Grown in Organic Substrates. Plants 2021, 10, 1220 .
AMA StyleDulal Sarkar, Rahman, Jasim Uddain, Quamruzzaman, Obyedul Kalam Azad, Rahman, Jahirul Islam, Mohammed Rahman, Ki-Young Choi, Most Naznin. Estimation of Yield, Photosynthetic Rate, Biochemical, and Nutritional Content of Red Leaf Lettuce (Lactuca sativa L.) Grown in Organic Substrates. Plants. 2021; 10 (6):1220.
Chicago/Turabian StyleDulal Sarkar; Rahman; Jasim Uddain; Quamruzzaman; Obyedul Kalam Azad; Rahman; Jahirul Islam; Mohammed Rahman; Ki-Young Choi; Most Naznin. 2021. "Estimation of Yield, Photosynthetic Rate, Biochemical, and Nutritional Content of Red Leaf Lettuce (Lactuca sativa L.) Grown in Organic Substrates." Plants 10, no. 6: 1220.
This study aimed to examine the total viable bacteria (TVBC); total coliform (TCC); fecal coliform (TFC); pathogenic Pseudomonas spp., Staphylococcus aureus, and total fungi (TF); and the effect of different low-cost disinfectants (sterile water, salt water, blanched, and vinegar) in decontamination of 12 types of fruit and 10 types of vegetables. In fruit samples, the lowest TVBC was enumerated at 3.18 ± 0.27 log CFU/g in Indian gooseberry and the highest at 6.47 ± 0.68 log CFU/g in guava. Staphylococci (2.04 ± 0.53–5.10 ± 0.02 log CFU/g), Pseudomonas (1.88 ± 0.03–5.38 ± 0.08 log CFU/g), and total fungi (2.60 ± 0.18–7.50 ± 0.15 log CFU/g) were found in all fruit samples; however, no Salmonella was detected in fruit samples. Similarly, the lowest TVBC recorded 5.67± 0.49 log CFU/g in cucumber and the highest 7.37 ± 0.06 log CFU/g in yard long bean. The Staphylococci (3.48 ± 0.13–4.81 ± 0.16 log CFU/g), Pseudomonas (3.57± 0.21– 4.75 ± 0.23 log CFU/g), TCC (1.85 ± 1.11–56.50 ± 37.14 MPN/g), TFC (1.76 ± 0.87– 3.78 ± 3.76 MPN/g), and TF (3.79 ± 0.18–4.40 ± 0.38 log CFU/g) were recorded in all vegetables samples, but no Salmonella was detected in yard long bean, pointed gourd, carrot, tomato, cucumber, or brinjal. However, vinegar showed the highest microbial load reduction of selected fruit and vegetables among the different treatments. With vinegar treatment, the highest reduction of TVBC (1.61-log) and TF (2.54-log) was observed for fruits, and TVBC (2.31-log) and TF (2.41-log) for vegetables. All the disinfectant treatments resulted in significant (p< 0.01) bacterial load reduction compared to control for the studied fruits and vegetable samples.
Rahman; Obyedul Kalam Azad; Jasim Uddain; Adnan; Chayan Ali; Sk. Al-Mujahidy; Zohurul Kadir Roni; Mohammed Rahman; Jahirul Islam; Rahman; Ki Choi; Most Naznin. Microbial Quality Assessment and Efficacy of Low-Cost Disinfectants on Fresh Fruits and Vegetables Collected from Urban Areas of Dhaka, Bangladesh. Foods 2021, 10, 1325 .
AMA StyleRahman, Obyedul Kalam Azad, Jasim Uddain, Adnan, Chayan Ali, Sk. Al-Mujahidy, Zohurul Kadir Roni, Mohammed Rahman, Jahirul Islam, Rahman, Ki Choi, Most Naznin. Microbial Quality Assessment and Efficacy of Low-Cost Disinfectants on Fresh Fruits and Vegetables Collected from Urban Areas of Dhaka, Bangladesh. Foods. 2021; 10 (6):1325.
Chicago/Turabian StyleRahman; Obyedul Kalam Azad; Jasim Uddain; Adnan; Chayan Ali; Sk. Al-Mujahidy; Zohurul Kadir Roni; Mohammed Rahman; Jahirul Islam; Rahman; Ki Choi; Most Naznin. 2021. "Microbial Quality Assessment and Efficacy of Low-Cost Disinfectants on Fresh Fruits and Vegetables Collected from Urban Areas of Dhaka, Bangladesh." Foods 10, no. 6: 1325.
Production of safe food in the densely populated areas of the developing countries is the most challenging issue due to the speedy urbanization, fragile food transportation facilities, and reduced farmlands. Given this background, a study was conducted to evaluate the agronomic properties and economic viability of lettuce grown vertically in the wall of building in Dhaka city, Bangladesh. Two lettuce cultivars (V1: Green wave and V2: New red fire) and three organic growing media (P1: 40% soil + 40% vermicompost + 20% coir; P2: 50% soil + 50% vermicompost; P3: 20% soil + 40% vermicompost + 40% spent mushroom compost) along with control (P0:100% soil) were used. The results revealed that plant height, leaf area, fresh weight, dry weight, and total yield of leaf lettuce were significantly increased when the green-leafed cultivar (VI) was grown in the P1 compared to all other treatments, but V2 got maximum sensory attribute scores when grown in the P1. Lettuce leaves grown in the formulated growing media (P1, P2, and P3) had higher microbial infestation whereas, a lower content occurred in the P0. The higher economic return was observed in V1P1. These results provided baseline information for further study on urban commercial vertical farming on the building walls. These demonstrate the agronomic and economic potential for vertical farming in densely populated areas but emphasize the need for optimized food safety strategies.
Rinita Islam; Abul Hasnat M. Solaiman; Humayun Kabir; S. M. Anamul Arefin; Obyedul Kalam Azad; Mahbubul H. Siddiqee; Beatrix W. Alsanius; Most Tahera Naznin. Evaluation of Lettuce Growth, Yield, and Economic Viability Grown Vertically on Unutilized Building Wall in Dhaka City. Frontiers in Sustainable Cities 2021, 3, 1 .
AMA StyleRinita Islam, Abul Hasnat M. Solaiman, Humayun Kabir, S. M. Anamul Arefin, Obyedul Kalam Azad, Mahbubul H. Siddiqee, Beatrix W. Alsanius, Most Tahera Naznin. Evaluation of Lettuce Growth, Yield, and Economic Viability Grown Vertically on Unutilized Building Wall in Dhaka City. Frontiers in Sustainable Cities. 2021; 3 ():1.
Chicago/Turabian StyleRinita Islam; Abul Hasnat M. Solaiman; Humayun Kabir; S. M. Anamul Arefin; Obyedul Kalam Azad; Mahbubul H. Siddiqee; Beatrix W. Alsanius; Most Tahera Naznin. 2021. "Evaluation of Lettuce Growth, Yield, and Economic Viability Grown Vertically on Unutilized Building Wall in Dhaka City." Frontiers in Sustainable Cities 3, no. : 1.
Irrational applications of insecticides on vegetable crops are very common in Bangladesh, resulting in harmful consequences for the environment and human health. Therefore, a study was conducted to evaluate the efficacy of biological and botanical insecticides on okra shoot and fruit borer grown in open fields. Four insecticides were used in this study, namely Bacillus thuringiensis (Bt), Spinosad 45 SC, Abamectin 1.8 EC, and Azadirachtin 1% EC an untreated control. The experiment used a randomized complete block design (RCBD) with three replications. The results showed that the rate of shoot infestation was the lowest in the Spinosad-treated plot (3.80%), and the highest was in the control (20.67%). The lowest fruit infestation (3.56%) was recorded in the treated plot of Spinosad. The rate of reduction of fruit infestation over control was 80.69, 60.14, 56.45, and 55.58% in the plots treated with Spinosad, Bt, Azadirachtin, and Abamectin, respectively. Consequently, the Spinosad-treated plot attained the highest yield (8.65 t ha−1), which was followed by the plots treated with Azadirachtin (6.74 t ha−1), Bt (6.28 t ha−1), and Abamectin (6.12 t ha−1). The highest net return and benefit–cost ratio (BCR) were 542.36 US$ and 2.64, obtained respectively from the Spinosad-treated plot. The second highest BCR (1.70) was obtained from the Azadiratin-treated plot, and the lowest BCR (1.18) was recorded in the Abamectin-treated plot. Therefore, the studied insect management practices could be incorporated to attain higher yields and economic benefits for growing okra in Bangladesh.
Abdur Razzak Choudhury; Fuad Mondal; Ahasan Ullah Khan; Shahadat Hossain; Obyedul Kalam Azad; Mohammad Dalower Hossain Prodhan; Jasim Uddain; Mohammed Saifur Rahman; Nur Ahmed; Ki Young Choi; Most Tahera Naznin. Evaluation of Biological Approaches for Controlling Shoot and Fruit Borer (Earias vitella F.) of Okra Grown in Peri-Urban Area in Bangladesh. Horticulturae 2021, 7, 7 .
AMA StyleAbdur Razzak Choudhury, Fuad Mondal, Ahasan Ullah Khan, Shahadat Hossain, Obyedul Kalam Azad, Mohammad Dalower Hossain Prodhan, Jasim Uddain, Mohammed Saifur Rahman, Nur Ahmed, Ki Young Choi, Most Tahera Naznin. Evaluation of Biological Approaches for Controlling Shoot and Fruit Borer (Earias vitella F.) of Okra Grown in Peri-Urban Area in Bangladesh. Horticulturae. 2021; 7 (1):7.
Chicago/Turabian StyleAbdur Razzak Choudhury; Fuad Mondal; Ahasan Ullah Khan; Shahadat Hossain; Obyedul Kalam Azad; Mohammad Dalower Hossain Prodhan; Jasim Uddain; Mohammed Saifur Rahman; Nur Ahmed; Ki Young Choi; Most Tahera Naznin. 2021. "Evaluation of Biological Approaches for Controlling Shoot and Fruit Borer (Earias vitella F.) of Okra Grown in Peri-Urban Area in Bangladesh." Horticulturae 7, no. 1: 7.
Seed priming is a technique that can potentially facilitate rapid and consistent germination and subsequent plant growth. The present study investigates the effect of different seed priming treatments and processing times on germination and growth efficiency for the effective cultivation of Yard-long bean. Thirteen different primings were used to determine the stimulatory effect on the germination and yield performance of the Yard-long bean. The priming treatments included control (without priming); hydro priming for 12, 18, 24, and 30 h; halo priming (1% CaCl2) for 12, 18, 24, and 30 h; and halo priming (2% KNO3) for 12, 18, 24, and 30 h. Studies showing the highest level of germination (86.66%), germination index (35.69), seedling vigor index (1833.80), number of branches (7.20), and pod yields per plant (1836.00 g) were recorded from halo priming with 1% CaCl2 at 12 h treatment. Halo priming with 1% CaCl2 at 12 h is thus considered to be a compatible priming technique for the germination of seeds and a higher yield of Yard-long bean.
Naziul Karim; Nasir Hossain Sani; Jasim Uddain; Obyedul Kalam Azad; Sazzadul Kabir; Mohammed Saifur Rahman; Ki Young Choi; Most Tahera Naznin. Stimulatory Effect of Seed Priming as Pretreatment Factors on Germination and Yield Performance of Yard Long Bean (Vigna unguiculata). Horticulturae 2020, 6, 104 .
AMA StyleNaziul Karim, Nasir Hossain Sani, Jasim Uddain, Obyedul Kalam Azad, Sazzadul Kabir, Mohammed Saifur Rahman, Ki Young Choi, Most Tahera Naznin. Stimulatory Effect of Seed Priming as Pretreatment Factors on Germination and Yield Performance of Yard Long Bean (Vigna unguiculata). Horticulturae. 2020; 6 (4):104.
Chicago/Turabian StyleNaziul Karim; Nasir Hossain Sani; Jasim Uddain; Obyedul Kalam Azad; Sazzadul Kabir; Mohammed Saifur Rahman; Ki Young Choi; Most Tahera Naznin. 2020. "Stimulatory Effect of Seed Priming as Pretreatment Factors on Germination and Yield Performance of Yard Long Bean (Vigna unguiculata)." Horticulturae 6, no. 4: 104.
Plant production in urban areas is receiving much attention due to its potential role in feeding the rapidly growing population of city dwellers. However, higher energy demands in urban plant factories are among the key challenges that need to be addressed. Artificial lighting is responsible for the most significant levels of energy consumption in plant factories; therefore, lighting systems must be modulated in consideration of the sustainable food–energy nexus. In this context, low light irradiation using blue (B) and red (R) LED was applied in a plant factory for the growth of red leaf lettuce (Lactuca sativa L. var Lollo rosso) to evaluate the growth performance and functional quality. The tested B (450 nm) and R (660 nm) light ratios were B/R = 5:1; 3:1; 1:1; 1:3, and 1:5, with a photosynthetic photon flux density (PPFD) of 90 ± 3 µmol m−2 s−1. In the plant factory, the photoperiod, temperature, RH, and CO2 conditions were 16 h d−1, 20 ± 0.5 °C, 65% ± 5%, and 360 ± 10 μL L−1, respectively. The lettuce was harvested 10 and 20 days after the commencement of LED light treatment (DAT). In this study, normal photosynthetic activity and good visual quality of the lettuce were observed. The results show that a higher fraction of R (B/R = 1:5) significantly increased plant growth parameters such as plant height, leaf area, specific leaf area, plant fresh and dry weight, and carbohydrate content. By contrast, a higher fraction of B (B/R = 5:1) significantly increased the photosynthetic parameters and contents of pigment and phenolic compounds. The rate of photosynthetic performance, carbohydrates (except starch), and content of phenolic compounds were highest after 10 DAT, whereas the pigment contents did not significantly differ at the different growth stages. It is concluded that high R fractions favor plant growth and carbohydrate content, while high B fractions favor photosynthetic performance and the accumulation of pigments and phenolic compounds in red leaf lettuce under limited lighting conditions. This study will help in designing artificial lighting conditions for plant factory production to reduce energy demands.
Obyedul Kalam Azad; Katrine Heinsvig Kjaer; Adnan; Most Tahera Naznin; Jung Dae Lim; In Je Sung; Cheol Ho Park; Young Seok Lim. The Evaluation of Growth Performance, Photosynthetic Capacity, and Primary and Secondary Metabolite Content of Leaf Lettuce Grown under Limited Irradiation of Blue and Red LED Light in an Urban Plant Factory. Agriculture 2020, 10, 28 .
AMA StyleObyedul Kalam Azad, Katrine Heinsvig Kjaer, Adnan, Most Tahera Naznin, Jung Dae Lim, In Je Sung, Cheol Ho Park, Young Seok Lim. The Evaluation of Growth Performance, Photosynthetic Capacity, and Primary and Secondary Metabolite Content of Leaf Lettuce Grown under Limited Irradiation of Blue and Red LED Light in an Urban Plant Factory. Agriculture. 2020; 10 (2):28.
Chicago/Turabian StyleObyedul Kalam Azad; Katrine Heinsvig Kjaer; Adnan; Most Tahera Naznin; Jung Dae Lim; In Je Sung; Cheol Ho Park; Young Seok Lim. 2020. "The Evaluation of Growth Performance, Photosynthetic Capacity, and Primary and Secondary Metabolite Content of Leaf Lettuce Grown under Limited Irradiation of Blue and Red LED Light in an Urban Plant Factory." Agriculture 10, no. 2: 28.
The aim of this study was to evaluate the growth characteristics and pigment content of tomato plantlets grown under various ratios of red (R) (661 nm) and blue (B) (449 nm) LED light. In this study, three different ratios of R and B (RB) light such as 5:01, 10:01, and 19:01 along with R (100%) were used. The photosynthetic photon flux density (PPFD), and photoperiod of the growth chamber was 120 ± 5 μmol m−2s−1 and 16/8 h (day/night), respectively. Tomato plantlets were cultured for six weeks in the growth chamber. It was shown that tomato plantlets had higher photosynthesis rate, higher pigments content, higher growth characteristics (e.g., number of leaves, leaf area, shoot number, root number, root length, dry, and fresh mass), and greater surviving rate under the R:B = 10:01 ratio among the treatments. The plantlets showed at least a threefold decrease in photosynthesis rate, as well as a significant abnormal stem elongation when grown under 100% R light. It is concluded that the RB ratio of 10:01 showed excellent performance in all growth parameters. This result has shown that the optimum lighting environment improves tomato plantlet cultures in vitro.
Most Tahera Naznin; Mark Lefsrud; Obyedul Kalam Azad; Cheol Ho Park. Effect of Different Combinations of Red and Blue LED Light on Growth Characteristics and Pigment Content of In Vitro Tomato Plantlets. Agriculture 2019, 9, 196 .
AMA StyleMost Tahera Naznin, Mark Lefsrud, Obyedul Kalam Azad, Cheol Ho Park. Effect of Different Combinations of Red and Blue LED Light on Growth Characteristics and Pigment Content of In Vitro Tomato Plantlets. Agriculture. 2019; 9 (9):196.
Chicago/Turabian StyleMost Tahera Naznin; Mark Lefsrud; Obyedul Kalam Azad; Cheol Ho Park. 2019. "Effect of Different Combinations of Red and Blue LED Light on Growth Characteristics and Pigment Content of In Vitro Tomato Plantlets." Agriculture 9, no. 9: 196.
Broomcorn millet (Panicum miliaceum L.) is an important nutritious ancient minor-cereal food crop. However, this crop is little explored in the food processing arena to improve its functionality. In this context, different processing methods were applied to enhance the secondary compounds of broomcorn millet. Four different individual methods such as roasting, steaming, puffing, and extrusion were applied at 110 °C to enhance the functional attributes of millet flour. It was observed that the significantly highest content of total phenolic (TP) (670 mg/100 g of ferulic acid equivalent) and total flavonoid (TF) (391 mg/100 g of rutin equivalent ) was attained in the roasted whole millet followed by steaming (315 mg/100 g, 282 mg/100 g), puffing (645 mg/100 g, 304 mg/100 g), extrusion (455 mg/100 g, 219 mg/100 g), and control (295 mg/100 g, 183 mg/100 g). The chromatographic analysis showed a greater content of single phenolic acids such as syringic acid, gallic acid, 4-hydroxy benzoic acid, ferulic acid, sinapic acid, and catechin in roasted millet compared to control, and the content of each acid was higher in whole millet than dehulled. Results also indicated that the content of ferulic acid was relatively higher among the quantified single phenolic acid from broomcorn millet. Likewise, in comparison with dehulled millet, the roasted whole millet showed higher total antioxidant capacity, measured by the 2,2-diphenyl-1 picryl hydrazyl (DPPH), the ferric reducing antioxidant power assay (FRAP), the phosphomolybdenum method (PPMD), and the hydroxyl radical scavenging capacity (HRSC) method. Lastly, it is concluded that the roasting method should be taken into consideration in the processing of broomcorn millet to enhance the content of nutraceutical compounds and improve its functionality.
Obyedul Kalam Azad; Da In Jeong; Adnan; Timnoy Salitxay; Jeong Won Heo; Most Tahera Naznin; Jung Dae Lim; Dong Ha Cho; Byoung Jae Park; Cheol Ho Park. Effect of Different Processing Methods on the Accumulation of the Phenolic Compounds and Antioxidant Profile of Broomcorn Millet (Panicum miliaceum L.) Flour. Foods 2019, 8, 230 .
AMA StyleObyedul Kalam Azad, Da In Jeong, Adnan, Timnoy Salitxay, Jeong Won Heo, Most Tahera Naznin, Jung Dae Lim, Dong Ha Cho, Byoung Jae Park, Cheol Ho Park. Effect of Different Processing Methods on the Accumulation of the Phenolic Compounds and Antioxidant Profile of Broomcorn Millet (Panicum miliaceum L.) Flour. Foods. 2019; 8 (7):230.
Chicago/Turabian StyleObyedul Kalam Azad; Da In Jeong; Adnan; Timnoy Salitxay; Jeong Won Heo; Most Tahera Naznin; Jung Dae Lim; Dong Ha Cho; Byoung Jae Park; Cheol Ho Park. 2019. "Effect of Different Processing Methods on the Accumulation of the Phenolic Compounds and Antioxidant Profile of Broomcorn Millet (Panicum miliaceum L.) Flour." Foods 8, no. 7: 230.
Horticultural greenhouse production in circumpolar regions (>60° N latitude), but also at lower latitudes, is dependent on artificial assimilation lighting to improve plant performance and the profitability of ornamental crops, and to secure production of greenhouse vegetables and berries all year round. In order to reduce energy consumption and energy costs, alternative technologies for lighting have been introduced, including light-emitting diodes (LED). This technology is also well-established within urban farming, especially plant factories. Different light technologies influence biotic and abiotic conditions in the plant environment. This review focuses on the impact of light quality on plant–microbe interactions, especially non-phototrophic organisms. Bacterial and fungal pathogens, biocontrol agents, and the phyllobiome are considered. Relevant molecular mechanisms regulating light-quality-related processes in bacteria are described and knowledge gaps are discussed with reference to ecological theories.
Beatrix Alsanius; Maria Karlsson; Anna Rosberg; Martine Dorais; Most Naznin; Sammar Khalil; Karl-Johan Bergstrand. Light and Microbial Lifestyle: The Impact of Light Quality on Plant–Microbe Interactions in Horticultural Production Systems—A Review. Horticulturae 2019, 5, 41 .
AMA StyleBeatrix Alsanius, Maria Karlsson, Anna Rosberg, Martine Dorais, Most Naznin, Sammar Khalil, Karl-Johan Bergstrand. Light and Microbial Lifestyle: The Impact of Light Quality on Plant–Microbe Interactions in Horticultural Production Systems—A Review. Horticulturae. 2019; 5 (2):41.
Chicago/Turabian StyleBeatrix Alsanius; Maria Karlsson; Anna Rosberg; Martine Dorais; Most Naznin; Sammar Khalil; Karl-Johan Bergstrand. 2019. "Light and Microbial Lifestyle: The Impact of Light Quality on Plant–Microbe Interactions in Horticultural Production Systems—A Review." Horticulturae 5, no. 2: 41.
The aim of this study was to evaluate the grafting compatibility of different varieties of tomato (Solanum lycopersicum L.) scions on potato (Solanum tuberosum L.) rootstocks to develop a ‘pomato’ plant. In this study three potato varieties; Diamant (P1), Cardinal (P2) and Asterix (P3), and two tomato varieties; Bangladesh Agricultural Research Institute (BARI) tomato-2 (T1) and BARI tomato-11 (T2) were used to make the grafted combinations T1P1, T1P2, T1P3, T2P1, T2P2 and T2P3, designated G1, G2, G3, G4, G5, and G6, respectively. Tomato seedlings aged 25 (S1) and 35 days (S2) were selected as scions. Graft compatibility was analyzed based on the growth and yield of the pomato plants. The results revealed that varieties and scion age had a significant effect on the pomato fruit and tuber yield. The initiation of flowering was not affected by the various graft combinations; however, plant height, leaf number, branch number, number of clusters per plant, number of fruit per cluster, number of fruit per plant, fruit length, fruit diameter, single fruit weight and total fruit yield per plant were higher in G5S1 among the combinations. On the other hand, the number of tubers per plant, single tuber weight, and tuber yield per plant were highest for a few combinations. Overall, it was concluded that Cardinal (P2) and Asterix (P3) potato were the most compatible for grafting with BARI tomato-11 (T2) at the scion age of 25 days (S1), based on vegetative growth and fruit and tuber yield of pomato plants.
S. M. Anamul Arefin; Naheed Zeba; Abul Hasnat M Solaiman; Most Tahera Naznin; Obyedul Kalam Azad; Mourita Tabassum; Cheol Ho Park. Evaluation of Compatibility, Growth Characteristics, and Yield of Tomato Grafted on Potato (‘Pomato’). Horticulturae 2019, 5, 37 .
AMA StyleS. M. Anamul Arefin, Naheed Zeba, Abul Hasnat M Solaiman, Most Tahera Naznin, Obyedul Kalam Azad, Mourita Tabassum, Cheol Ho Park. Evaluation of Compatibility, Growth Characteristics, and Yield of Tomato Grafted on Potato (‘Pomato’). Horticulturae. 2019; 5 (2):37.
Chicago/Turabian StyleS. M. Anamul Arefin; Naheed Zeba; Abul Hasnat M Solaiman; Most Tahera Naznin; Obyedul Kalam Azad; Mourita Tabassum; Cheol Ho Park. 2019. "Evaluation of Compatibility, Growth Characteristics, and Yield of Tomato Grafted on Potato (‘Pomato’)." Horticulturae 5, no. 2: 37.
The aim of this study was to investigate the different combinations of red (R) and blue (B) light emitting diode (LEDs’) lighting effects on growth, pigment content, and antioxidant capacity in lettuce, spinach, kale, basil, and pepper in a growth chamber. The growth chamber was equipped with R and B light percentages based on total light intensity: 83% R + 17% B; 91% R + 9% B; 95% R + 5% B; and control was 100% R. The photosynthetic photon flux density (PPFD), photoperiod, temperature, and relative humidity of the growth chamber were maintained at 200 ± 5 μmol m−2 s−1, 16 h, 25/21 ± 2.5 °C, and 65 ± 5%, respectively. It is observed that the plant height of lettuce, kale, and pepper was significantly increased under 100% R light, whereas the plant height of spinach and basil did not show any significant difference. The total leaf number of basil and pepper was significantly increased under the treatment of 95% R + 5% B light, while no significant difference was observed for other plant species in the same treatment. Overall, the fresh and dry mass of the studied plants was increased under 91% R + 9% B and 95% R + 5% B light treatment. The significantly higher flower and fruit numbers of pepper were observed under the 95% R + 5% B treatment. The chlorophyll a, chlorophyll b, and total chlorophyll content of lettuce, spinach, basil, and pepper was significantly increased under the 91% R + 9% B treatment while the chlorophyll content of kale was increased under the 95% R + 5% B light treatment. The total carotenoid content of lettuce and spinach was higher in the 91% R + 9% B treatment whereas the carotenoid content of kale, basil, and pepper was increased under the 83% R + 17% B treatment. The antioxidant capacity of the lettuce, spinach, and kale was increased under the 83% R + 17% B treatment while basil and pepper were increased under the 91% R + 9% B treatment. This result indicates that the addition of B light is essential with R light to enhance growth, pigment content, and antioxidant capacity of the vegetable plant in a controlled environment. Moreover, the percentage of B with R light is plant species dependent.
Most Tahera Naznin; Mark Lefsrud; Valerie Gravel; Obyedul Kalam Azad. Blue Light added with Red LEDs Enhance Growth Characteristics, Pigments Content, and Antioxidant Capacity in Lettuce, Spinach, Kale, Basil, and Sweet Pepper in a Controlled Environment. Plants 2019, 8, 93 .
AMA StyleMost Tahera Naznin, Mark Lefsrud, Valerie Gravel, Obyedul Kalam Azad. Blue Light added with Red LEDs Enhance Growth Characteristics, Pigments Content, and Antioxidant Capacity in Lettuce, Spinach, Kale, Basil, and Sweet Pepper in a Controlled Environment. Plants. 2019; 8 (4):93.
Chicago/Turabian StyleMost Tahera Naznin; Mark Lefsrud; Valerie Gravel; Obyedul Kalam Azad. 2019. "Blue Light added with Red LEDs Enhance Growth Characteristics, Pigments Content, and Antioxidant Capacity in Lettuce, Spinach, Kale, Basil, and Sweet Pepper in a Controlled Environment." Plants 8, no. 4: 93.