不同玉米材料发芽期耐盐性鉴定及评价

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中图分类号：S513 文献标识码：Adoi：10.3969/j.issn.1002-204x.2025.06.004

文章编号：1002-204X（2025）06-0017-07

Identification and Evaluation of Salt Tolerance of Different Maize Materials during GerminationPeriod

Zhang Qingbiao'，Yang Guohu2* （1.School of Agriculture，Ningxia University，Yinchuan Ningxia 75oo21; 2.Crops Institute，Ningxia Academyof Agricultureand ForestrySciences，Yinchuan，Ningxia750002）

Abstract Inorder to explore the salt tolerance ofcorn materials，the salt tolerance of diferent corn materials during thegermination periodwas identified and evaluated.Niththe maize inbred line B73（CK）and maize materials M483， M738，and M699 mutated by EMS as experiment materials.Through salt stress treatment，thecontents of Na+ and K+ in the above-groundandrootpartsof each maize material during the germinationperiod，aswellas therelevant indicators for salt tolerance identification during the germination period such as embryobud length，embryo root length，aboveground biomass，and root biomass were determined.Basedon principal component analysis，through membership functionsand comprehensive evaluation，the comprehensive evaluation value （ D value） of salt tolerance during the germination periodofcorn was obtained.Basedonthe principal component analysis under treatments ofO，5O，and 100 mmol·L-1 ，the cumulative contribution rates were 95.999% ， 93.112% ，and 93.854% ，respectively. The comprehensive evaluation results showed that the salt tolerance of M699 was relatively excellent.

Key Words Corn; Salt tolerance; Comprehensive evaluation; Na+/K+

土壤盐渍化被认为是世界性的生态环境问题和农业灾害，是制约农业生产的主要限制性因素之二[-2]。（剩余9529字）