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Journal of Agricultural Science and Technology، جلد ۳، شماره ۱، صفحات ۱-۸
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عنوان انگلیسی Apex Development of Three Wheat Cultivars in the Presence of Salinity
چکیده انگلیسی مقاله Intra-specific variations in apex development of two salt-tolerant cultivars (Cross Rowshan 11 (CR) and Kharchia-65) and one salt-sensitive cultivar (Ghods) of spring wheat (Triticum aestivum L.) grown in sand culture at selected levels of salinity (0, 100, 200, and 300 mol m-3 NaCl and CaCl2 in 5:1 molar ratio) were studied. To determine the apex lengths and the number of spikelet primordia in the apex, the main shoot apex was dissected. Results indicated that final spikelet number of wheat cultivars decreased with increasing salinity. Cultivars showed different responses to a particular level of salinity. Duration of spikelet development from double ridge to terminal spikelet, spikelet number and apex length declined in the presence of salinity. Both shorter duration and reduced rate of spikelet initiation were responsible for reduction in spikelet number in salt-treated plants. Cultivar CR showed a better performance during spikelet initiation period and produced relatively more spikelets under saline conditions than the others.
کلیدواژه‌های انگلیسی مقاله Salinity,Wheat,Apex development,Phenological stages
نویسندگان مقاله | M. Kafi
Department of Agronomy, Ferdowsi University, P. O. Box: 91775-1163, Mashhad, Islamic Republic of Iran.
نشانی اینترنتی http://journals.modares.ac.ir/browse.php?a_code=A-23-1000-7206&slc_lang=en&sid=23
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زبان مقاله منتشر شده en
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