玉米幼苗期耐盐性评价适宜盐浓度的研究

Journal of Tianjin Agricultural University ›› 2015, Vol. 22 ›› Issue (1): 6-9.

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Study on Optimal Salt Concentration for Evaluation of Salt Tolerance of Maize at Seedling Stage

LUO Min, ZHANG Rong, WU Cui-ping, YUAN Ying, XU Lian-na, ZHANG Pei-pei, DU Jin, XIANG Chun-yang^*

College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300384, China

Received:2014-09-16 Published:2015-03-31

Abstract

Abstract: ：In order to investigate the optimal NaCl concentration for evaluating the salt tolerance of maize at seedling stage, 4 typical inbred combinations of maize (Zea mays L.) were treated with different concentrations of NaCl. Germination, root and seedling characters of maize at seedling stage were analyzed. The results show that germination power, seed vitality, seedling height, seedling weight, root length and root fresh weight all decreased with the increase of NaCl concentrations, and salt tolerance of every physiological character showed differences in same varieties. When the treatment concentration of NaCl reached 8‰, the differences of each testing indexes between the treated and the control were significant or highly significant. Optimal salt concentration for identifying the salt tolerance of maize at seedling stage was relatively constant 8‰ NaCl concentration.

Key words: maize, salt tolerance, salt concentration, seedling stage, evaluation

CLC Number:

S332.1

LUO Min, ZHANG Rong, WU Cui-ping, YUAN Ying, XU Lian-na, ZHANG Pei-pei, DU Jin, XIANG Chun-yang. Study on Optimal Salt Concentration for Evaluation of Salt Tolerance of Maize at Seedling Stage[J]. Journal of Tianjin Agricultural University, 2015, 22(1): 6-9.

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Study on Optimal Salt Concentration for Evaluation of Salt Tolerance of Maize at Seedling Stage

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