玉米幼苗期耐盐性评价的研究

Journal of Tianjin Agricultural University ›› 2014, Vol. 21 ›› Issue (4): 13-17.

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Study on Evaluation of Salt Tolerance of Maize in Seedling Stage

WU Cui-ping, ZHANG Pei-pei, DU Jin, CAO Gao-yi, WANG Dan, XIANG Chun-yang^{Corresponding Author}

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

Received:2014-04-16 Online:2014-12-20 Published:2019-10-21

Abstract

Abstract: This study was conducted to compare differences in salt tolerance of different maize and to construct the measuring system for evaluating identification indexes of salt tolerance in maize seedlings. Some traits and physiological indexes were measured under constant concentration of salt stress. Furthermore, membership function values were adopted to analyze salt tolerance of different species. The results show that subjection values of salt toxicity coefficient of germination ratio, seedling height, root length, leaf K⁺/Na⁺, root relative water content, seedling fresh weight, root fresh weight, seedling dry weight and root dry weight increased gradually with the increase of the sum subjection values, and they were positively correlated with the sum subjection values significantly. Based on the salt pool experiments, it is initially determined that root length, root fresh weight, root dry weight, seedling fresh weight, seedling dry weight, leaf K⁺/Na⁺ and germination ratio can be used to assess the salt tolerance of maize in seedling stage.

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

CLC Number:

S332.1

WU Cui-ping, ZHANG Pei-pei, DU Jin, CAO Gao-yi, WANG Dan, XIANG Chun-yang. Study on Evaluation of Salt Tolerance of Maize in Seedling Stage[J]. Journal of Tianjin Agricultural University, 2014, 21(4): 13-17.

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Study on Evaluation of Salt Tolerance of Maize in Seedling Stage

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