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中国农学通报

中国农学通报 ›› 2016, Vol. 32 ›› Issue (27): 14-18.doi: 10.11924/j.issn.1000-6850.casb15120051

所属专题： 水稻

• 农学 农业基础科学 • 上一篇    下一篇

盐胁迫下超级稻新品种‘松粳15’发芽特性分析

于艳敏,闫平,牟凤臣,武洪涛,张书利,徐振华,杨忠良   

  1. 黑龙江省农业科学院五常水稻研究所,黑龙江省农业科学院五常水稻研究所,黑龙江省农业科学院五常水稻研究所,黑龙江省农业科学院五常水稻研究所,黑龙江省农业科学院五常水稻研究所,黑龙江省农业科学院五常水稻研究所,黑龙江省农业科学院五常水稻研究所
  • 收稿日期:2015-12-09 修回日期:2016-01-06 接受日期:2016-01-25 出版日期:2016-09-29 发布日期:2016-09-29
  • 通讯作者: 于艳敏
  • 基金资助:
    国家现代农业产业技术体系“五常综合试验站”(CARS-01-40)；哈尔滨市学科带头人项目“超级稻松粳15 水稻新品种示范与应用”(2014REXY)；国家科技支撑计划“黑龙江省南部稻区粳稻资源研究与新品种选育”(2014BAD01B03-02)；农业部“农业科研杰出人才培养计划”(2016-2020-48)。

Germination Characteristics Analysis of New Super Rice ‘Songjing 15’ under Salt Stress

  • Received:2015-12-09 Revised:2016-01-06 Accepted:2016-01-25 Online:2016-09-29 Published:2016-09-29

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摘要： 为了探讨超级稻新品种‘松粳15’在盐胁迫条件下的种子发芽特性，采用NaCl单盐胁迫，设置50、100、150、200 mmol/L 4个浓度梯度进行人工气候箱培养，调查分析了发芽势、发芽率、苗长、根长、主根数、苗鲜重、根鲜重、苗干重、根干重等发芽指标。结果表明：盐胁迫导致‘松粳15’发芽势、发芽率、发芽指数和活力指数下降，并且随着盐浓度的升高逐渐降低，苗长和主根数受到抑制，根长随着盐浓度增加呈先增后降的趋势，苗鲜重和苗干重低于对照，根鲜重和根干重高于对照，通过对盐浓度与发芽特性指标相关分析，盐浓度与根鲜重、根干重极显著正相关，与苗长、根数、苗干重、芽势、芽率呈极显著负相关。

关键词: 夏玉米, 夏玉米, 品种, 产量, 叶面积指数, 光合势, 相关性

Abstract: In order to discuss germination characteristics of new super rice ‘Songjing 15’ under salt stress, the index including germination vigor, germination rate, seedling length, root length, root number, seedling fresh weight, root fresh weight, seedling dry weight, root dry weight were investigated and analyzed, adopting single salt stress 50,100,150,200mmol/L total 4 concentrations culturing in climatic cabinate. The results indicated that: Salt stress lead to decline of germination vigor, germination rate, germination index, vigour index of ‘Songjing 15’, and gradually decrease with the increase of salt concentration, seedling length and main root were inhibited, root length increased and then decreased as the salt concentration increased, seedling fresh weight and seedling dry weight were lower than control, root fresh weight and root dry weight were higher than control，it was significant positive correlation between salt concentration and root fresh weight, root dry weight, and significant negative correlation with seedling length, root number, root dry weight, germination vigor, germination rate by correlation analysis of salt concentration and germination characteristics index.

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