Effects of CaCl2 on Physiological Characteristics and Grow th of Cotton Seedling U nder Saline Stress
ZHU Wei
FANG Wei-ping
XIE De-yi
YANG Xiao-jie
LI Ling-li
MA Zong-bin
Abstract：To improve the salt-resistance of cotton with exogenous calcium ,the cotton cultivar Kaifeng 16 was selected to explore the CaCl2 alleviating effect under saline stress(NaCl)on physi-ological characteristics and growth of cotton seedlings .The results showed that soaking seeds in 10 mmol/L CaCl2 could improve the seed germination ratio ,the height and the dry weight of cot-ton seedling .Under 4 g/L NaCl stress ,the seed germination ratio ,the height and the dry weight of cotton seedling in the seed soaking treatment with 10 mmol/L CaCl2 increased by 16.20% , 16.30% and 9.60% compared to the treatment with distilled water (CK) respectively .The allevia-tion effects were lower with the higher saline stress .At the same time ,the content of MDA and the relative conductivity decreased ,the proline content ,SOD and POD activities increased as well . This experiment indicates that CaCl2 may help to improve seed germination and seedling growth , and enhance salt resistance ability of cotton .
Keywords：CaCl2salt stresscottonseedling grow thphysiological characteristics
Publication Date：2014-06-02
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 35-38 )