摘要
０．０１—０．１ｍｍｏｌ／Ｌ腐胺Ｐｕｔｒｅｓｃｉｎｅ（Ｐｕｔ）浸种处理４８ｈ，可以促进水稻种子（加粒２２２）在次适温下（１６±１℃）萌发，显著地提高发芽指数和活力指数。但在２８℃时对种子萌发无显著影响。进一步研究表明，在次适温下（１６±１℃），Ｐｕｔ可以促进α－淀粉酶合成，提高α－淀粉酶活性。增加呼吸强度和ＡＴＰ含量。但在２８℃时，Ｐｕｔ对种子内α－淀粉酶活性无影响。研究结果表明，Ｐｕｔ对种子萌发的影响与温度有关，在次适温下（１６±１℃）可促进水稻种子（加粒２２２）萌发。
With different concentrations of Putrescine (Put)for rice-soaking, we investigated its effects on seed germination at sub-optimal and optimal temperatures.The resultls showed that Put-treatment(0. 01 0.1mmol/L)enhanced seed germination and index of germination and rigour of the rice seed at sub-optimal temperature(16±1℃),but no effects at optimal temperature(28±1℃).It was found that the effect of Put on the germination of rice seed was connected with temperature.In mean time,we also found that Put-treatment enhanced the synthesis of α-amylase,increased the ATP content and the respiration intensity during seed germination at sub-optimal temperature(16±1℃).
出处
《武汉植物学研究》
CSCD
1995年第2期152-156,共5页
Journal of Wuhan Botanical Research
基金
浙江省自然科学基金
关键词
腐胺
水稻
次适温
种子萌发
Putrescine(Put),Rice,Suboptimal temperature,Seed germination
