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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (33): 34-39.

所属专题： 玉米

• 农学 农业基础科学 • 上一篇    下一篇

不同品种玉米萌发期耐盐性的比较

谷思玉 周连仁 王佳佳   

  • 收稿日期:2011-07-01 修回日期:2011-09-20 出版日期:2011-12-25 发布日期:2011-12-25
  • 基金资助:

    公益性行业（农业）科研专项经费项目

Relatives of Salt Tolerance of Different Kinds Inbred Lines of Maize in Embryoism

  • Received:2011-07-01 Revised:2011-09-20 Online:2011-12-25 Published:2011-12-25

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摘要：

为了对玉米品种耐盐性筛选、盐碱地玉米栽培和耐盐育种提供理论参考，以发芽势、发芽率、根长和苗长等作为指标，用不同浓度的NaCl对9份不同玉米品种进行苗期耐盐性筛选的鉴定，分析盐胁迫对不同品种玉米种子萌发的影响。结果表明：30 mmol/L NaCl处理下‘吉单519’和‘平全9’的根长比对照增加了31.17%和14.17%，与对照处理达到显著水平（P<0.05），说明低浓度的NaCl（≤30 mmol/L）溶液对玉米的萌发有促进作用，提高了玉米种子的发芽率和根、芽的伸长，并且不同品种间表现出耐盐性有差异。

关键词: 嫁接, 嫁接, 植物, 盐胁迫, 耐盐机制

Abstract:

Aimed to provide theoretical reference for selecting salt tolerant maize varieties, cultivating maize on saline-alkali soil and breeding salt tolerant species. In this study, 9 different kinds inbred lines of maize (Zea mays L.) were treated with different concentrations of NaCl solution. Germination energy, germination rate, the length of buds and roots were used as indicators to identify and classify the salt stress tolerance in the germination period. Results showed: 30 mmol/L NaCl treatment, rootlength of ‘Jidan519’ and ‘Pingquan 9’ was 31.17% and 14.17% higher than 0 mmol/L treatment, P<0.05. The study showed that the seedlings were promoted when concentration of NaCl (≤30 mmol/L)was comparatively low, germination rate,the length of buds and roots were increased. All the indicators reveal that ‘Jidan 519’ and ‘Xianyu 335’ have a wider salt resistance, so we suggest these varieties can be widely planted in higher salinity soil.