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Roosta, Hamidreza, Nili, Fatemeh, Pourkhaloee, Ali, Askari, Naser. (1402). Effects of Supplemental Light Quality and Foliar Application with Calcium on Photosynthetic Parameters and Flower Stem Strength of Cut Gerbera (Gerbera jamesonii ‘Bayadere’). , 11(1), 69-82. doi: 10.22059/ijhst.2023.356795.625
Hamidreza Roosta; Fatemeh Nili; Ali Pourkhaloee; Naser Askari. "Effects of Supplemental Light Quality and Foliar Application with Calcium on Photosynthetic Parameters and Flower Stem Strength of Cut Gerbera (Gerbera jamesonii ‘Bayadere’)". , 11, 1, 1402, 69-82. doi: 10.22059/ijhst.2023.356795.625
Roosta, Hamidreza, Nili, Fatemeh, Pourkhaloee, Ali, Askari, Naser. (1402). 'Effects of Supplemental Light Quality and Foliar Application with Calcium on Photosynthetic Parameters and Flower Stem Strength of Cut Gerbera (Gerbera jamesonii ‘Bayadere’)', , 11(1), pp. 69-82. doi: 10.22059/ijhst.2023.356795.625
Roosta, Hamidreza, Nili, Fatemeh, Pourkhaloee, Ali, Askari, Naser. Effects of Supplemental Light Quality and Foliar Application with Calcium on Photosynthetic Parameters and Flower Stem Strength of Cut Gerbera (Gerbera jamesonii ‘Bayadere’). , 1402; 11(1): 69-82. doi: 10.22059/ijhst.2023.356795.625

Effects of Supplemental Light Quality and Foliar Application with Calcium on Photosynthetic Parameters and Flower Stem Strength of Cut Gerbera (Gerbera jamesonii ‘Bayadere’)

International Journal of Horticultural Science and Technology
دوره 11، شماره 1، فروردین 2024، صفحه 69-82    اصل مقاله (818.87 K)
نوع مقاله: Research paper
شناسه دیجیتال (DOI): 10.22059/ijhst.2023.356795.625
نویسندگان
Hamidreza Roosta1؛ Fatemeh Nili2؛ Ali Pourkhaloee* 2؛ Naser Askari3
1Department of Horticultural Science, Faculty of Agriculture and Natural Sciences, Arak University, Arak, Iran
2Department of Horticultural Science, College of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
3Department of Horticultural Science, Faculty of Agriculture, University of Jiroft, Jiroft, Iran
چکیده
Photosynthetic parameters and stem strength of Gerbera jamesonii ‘Bayadere’ plants were studied after foliar application with calcium chloride (0, 0.5, 1, and 1.5 g L-1) under natural light (NL), red light LEDs (R), blue light LEDs (B) and red + blue light LEDs (RB). Chlorophyll content increased under LED lights and foliar application with calcium chloride. The maximal quantum yield of PSII efficiency (Fv/Fm) and performance index (PI) reached the lowest value under NL conditions. The highest values of photosynthesis rate, stomatal conductance, and transpiration rate (E) were achieved by RB lighting. Under the RB light and calcium chloride spraying, the plants showed the lowest leaf nitrate content, compared to NL conditions. This resulted in the highest leaf nitrate content. The higher the nitrate content, the lower the stem strength. However, the leaf calcium content showed an opposite trend. Sprays of 1.5 g L-1 calcium chloride in combination with RB lighting significantly in creased the flower stem strength and reduced stem bending, compared to non-treated plants. In summary, the RB lighting and foliar application with calcium chloride enhanced the growth and flower stem firmness of cut gerbera. 
کلیدواژه‌ها
Artificial lighting؛ Bent neck؛ Floral scape rigidity؛ Greenhouse production؛ Photosynthesis
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