| SNP对涝渍胁迫下水稻种子萌发及秧苗素质的影响 |
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| 引用本文： | 陈思妍,邹华文.SNP对涝渍胁迫下水稻种子萌发及秧苗素质的影响[J].安徽农业科学,2012,40(34):16558-16559. |
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| 作者姓名： | 陈思妍 邹华文 |
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| 作者单位： | 长江大学农学院,湖北荆州,434025;长江大学农学院,湖北荆州,434025 |
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| 基金项目： | 公益性行业(农业)科研专项 |
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| 摘 要： | 目的]探讨硝普钠盐(SNP)浸种对涝渍胁迫条件下水稻种子萌发及幼苗生长的影响。方法]分别用蒸馏水和50μmol/L SNP溶液浸种24 h,正常催芽萌发至胚根2～5 mm,涝渍处理72 h,然后测定水稻种子的出苗率及各项形态指标。结果]与涝渍对照相比,SNP浸种处理的出苗率增加了36.7%,根长增加了22.5%,株高增加了10.6%,干重增加了41.1%,相对活力指数增加了30.4%。结论]SNP处理能显著提高涝渍条件下水稻种子的出苗率,提高秧苗素质,增加种子相对活力指数,对农业生成有一定的指导意义。
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| 关 键 词： | 涝渍 一氧化氮 出苗率 秧苗素质 相对活力指数 |
Effects of SNP on Rice Germination and Seedling Quality under Waterlogging Stress |
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| Institution: | CHEN Si-yan et al(College of Agriculture,Yangtze University,Jingzhou,Hubei 434025) |
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| Abstract: | Objective] The effects of SNP on rice seed germination and seedling growth under waterlogging stress were discussed.Method] Water and 50 μM SNP solution was used to submerge rice seeds for 24 hours,respectively.After the roots geminating at 2-5 mm length,the seeds were subjected to waterlogging for 72 hours.Then the seedlings formation rate and other indexes were checked.Result] The results showed that compared to the control,SNP treatment increased the seedlings formation rate by 36.7%,root length by 22.5%,plant height by 10.6%,dry weight by 41.1% and relative vigor index by 30.4%,respectively.Conclusion] SNP could dramatically enhance the seedlings formation rate,seedlings quality and relative vigor index of rice under waterlogging conditions,which can be helpful for agricultural practice. |
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| Keywords: | Waterlogging Nitric oxidase Seedlings formation rate Seedlings quality Relative vigor index |
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