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Journal of Agricultural Science and Technology، جلد ۱۸، شماره Supplementary Issue، صفحات ۱۸۹۷-۱۹۰۸
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عنوان انگلیسی Physiological and Biochemical Response of Olive (Olea europaea L.) Cultivars to Foliar Potassium Application
چکیده انگلیسی مقاله This study was conducted under Ahvaz, Iran environmental condition during 2012 and 2013 growing seasons in order to investigate the influence of foliar application of potassium on some physiological and biochemical characteristics of three olive cultivars including ‘Mission’, ‘Koroneiki’ and ‘Dezfuli’. Potassium sulfate in different concentrations of 0, 1, and 2 g l-1 was sprayed twice on selected mature 10 year old trees; at 50 and 65 days after full bloom. Potassium sprays increased leaf chlorophyll content of all cultivars, leaf potassium content in ‘Mission’ and ‘Koroneiki’ cvs., fruit anthocyanin concentration of ‘Dezfuli’ in two crop seasons. However, K treatments had no significant effect on leaf N and P content, fruit K and P content in all studied cultivars. Fruit soluble carbohydrates increased by foliar application of potassium in ‘Koroneiki’ and ‘Dezfuli’ cultivars in the second year of study. Stem water potential and leaf stomatal conductance were significantly affected by cultivar and K treatments during the two years. Our findings showed that foliar application of potassium resulted in the decrease of stomatal conductance of ‘Koroneiki’ and ‘Dezfuli’ in two crop seasons. Based on the results, it can be concluded that the studied cultivars differently respond to K treatments during the two crop seasons and foliar potassium application could have a positive impact on leaf chlorophyll, leaf potassium, fruit soluble carbohydrates and fruit anthocyanins in olive cultivars.
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نویسندگان مقاله sh زیودار |
department of horticultural science, tarbiat modares university tmu , p. o. box 14115-336, tehran, islamic republic iran.
سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

k ارزانی |
department of horticultural science, tarbiat modares university tmu , p. o. box 14115-336, tehran, islamic republic iran.
سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

محمدکاظم سوری | m k
department of horticultural science, tarbiat modares university tmu , p. o. box 14115-336, tehran, islamic republic iran.
سازمان اصلی تایید شده: دانشگاه تربیت مدرس (Tarbiat modares university)

n معلمی |
department of horticultural science, shahid chamran university, ahvaz, islamic republic iran.
سازمان اصلی تایید شده: دانشگاه شهید چمران (Shahid chamran university)

سید محمد سیدنژاد | s m
department of plant physiology, shahid chamran university, ahvaz, islamic republic iran.
سازمان اصلی تایید شده: دانشگاه شهید چمران (Shahid chamran university)

نشانی اینترنتی http://jast.modares.ac.ir/article_15457_e4d93511f883db9d7a85c76a7ed6f2e7.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/476/article-476-275365.pdf
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