| 几种化学药剂对杂交籼稻汕优63自然老化种子引发效果研究 |
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| 引用本文： | 朱世杨,洪德林.几种化学药剂对杂交籼稻汕优63自然老化种子引发效果研究[J].杂交水稻,2007,22(3):74-77. |
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| 作者姓名： | 朱世杨 洪德林 |
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| 作者单位： | 南京农业大学,作物遗传与种质创新国家重点实验室,江苏,南京,210095 |
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| 基金项目： | 教育部长江学者和创新团队发展计划 |
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| 摘 要： | 用聚乙二醇（PEG）、聚乙烯醇（PVA）、KNO3、PEG＋KNO3、PVA＋KNO3等几种化学药剂对自然老化的杂交籼稻汕优63种子进行引发效果研究,以筛选最佳处理方法。结果表明,从引发效果和经济实用两方面考虑,以0.5%PVA＋1.0%KNO3处理1 d为最佳。经过该处理的汕优63自然老化种子的发芽率显著提高,比对照（63.0%）提高了11.7个百分点,活力指数、发芽势、苗高、苗重也均较对照显著提高,且成本较低。
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| 关 键 词： | 杂交籼稻 汕优63 自然老化种子 种子引发效果 发芽率 |
| 文章编号： | 1005-3956（2007）03-0074-04 |
| 修稿时间： | 2006-12-30 |
Priming Effects of Several Chemicals on Naturally Aged Seeds of Shanyou 63 in Indica Hybrid Rice |
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| ZHU Shi-yang,HONG De-lin.Priming Effects of Several Chemicals on Naturally Aged Seeds of Shanyou 63 in Indica Hybrid Rice[J].Hybrid Rice,2007,22(3):74-77. |
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| Authors: | ZHU Shi-yang HONG De-lin |
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| Institution: | State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China |
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| Abstract: | Several chemicals including PEG,PVA and KNO3 were used to treat the naturally aged seeds of Shanyou 63,a widly-used indica hybrid rice combination in China,to study their priming effects on seed germination in order to screen the best treating methods.The results showed that the treatment of 0.5% PVA 1.0% KNO3 soaking for one day was the best one in terms of both the priming effect and economy.After the naturally aged seeds of Shanyou 63 were treated with this treatment,their seed germination percentage was markedly increased by 11.7% from 63.0%(the check) to 74.7%,their vigor index,germination rate,seedling height and weight were all much higher than those of the check.Furthermore,the cost of this treatment was relatively lower(about 1.12 yuan RMB/kg). |
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| Keywords: | indica hybrid rice Shanyou 63 naturally aged seeds seed priming effect seed germination |
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