4PU-30对杂交水稻后期叶片衰老及再生芽萌发的影响研究  

Effects of 4PU-30 on the leaf senescene and ratooning buds germination during ripening stage of hybrid rice

作　　者：陈国惠[1] 严军[1] 王光明[1] 杨安贵[1] 

机构地区：[1]西南农业大学农学与生命科学学院,重庆400716

出　　处：《中国生态农业学报》2004年第4期75-77,共3页Chinese Journal of Eco-Agriculture

基　　金：重庆市科委项目 ( 1999 5 912 )资助

摘　　要：试验研究 4PU 30对杂交水稻后期叶片衰老及再生芽萌发的影响结果表明 ,水稻齐穗 5d喷施 4PU 30可缓解叶片叶绿素分解 ,增强超氧化物歧化酶活性 ,降低芮二醛含量和细胞渗透率 ,有效延缓叶片衰老。 4PU 30可提高水稻根系活力 ,促进再生芽生长 。The effects of 4PU-30 on the leaf senescence and ratooning buds germination during the ripening stage of hybrid rice were studied. The results indicate that the rice leaves treated by 4PU-30 5 days after full heading can delay the degradation of the cholorophyll, increase the activities of superoxide dismutase and decrease the content of MDA and the rate of electrolyte leakage, postpone the leaf senescene effectively, improve the root vigour, promote sprouting and growing of ratooning buds and increase the buds survival rate.

关 键 词：再生芽 叶片衰老 杂交水稻 萌发 水稻根系 叶片叶绿素 喷施 细胞 活力 生长 

分 类 号：S511[农业科学—作物学] S565