Volume 3, Issue 4 (6-2014)                   DEEJ 2014, 3(4): 79-90 | Back to browse issues page

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kadkhodaie H, Sodaeizadeh H, mosleh arani A. The effects of exogenous application of glycine betain on growth and some physiological characteristics of Brossica napus under drought stress in field condition . DEEJ. 2014; 3 (4) :79-90
URL: http://deej.kashanu.ac.ir/article-1-84-en.html

Plant used different mechanisms to avoidance drought stress. This study was conducted to evaluate the role of exogenous application of glycine betaine in improving drought tolerance of Brassica napus. The study was performed on randomized complete block design with 3 replications. Different amounts of glycine betaine i.e. 0, 100 and 200 mM in combination with various irrigation periods i.e. 3, 6 and 9 days were considered as experimental treatments. Results indicate that application of glycine betaine cause a considerable increase in Brassica napus hydrocarbons as well as proline in water deficiency condition when compared to control. In water deficiency condition, application of 200 mM glycine betaine cause a significant increase in Brassica napus dry weight as well as chlorophyll content when compared to control. Also, drought tolerance indices showed that exogenous application of glycine betaine can increase stability of Brassica napus dry matter production at 6 and 9 irrigation days intervals when compared to 3 days intervals. Overall results indicat the possible use of osmotic adjustment material to improve growth of Brassica napus under water stress condition.

Type of Study: Applicable | Subject: Special
Received: 2013/08/1 | Accepted: 2014/02/25 | Published: 2014/06/20

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