MeJA和MeJA+BA对杂交籼稻亲本颖花开放的调控  

Regulating effect of MeJA and MeJA+BA on spikelet opening of parents of Indica hybrid rice

作　　者：陈小荣[1] 钟蕾[1] 曾晓春[1] 

机构地区：[1]江西农业大学-江西省作物生理生态与遗传育种重点实验室,南昌330045

出　　处：《中国生态农业学报》2007年第6期104-107,共4页Chinese Journal of Eco-Agriculture

基　　金：国家科技部"国家粮食丰产科技工程"(2004BA520A04);江西省教育厅自然科学基金项目资助

摘　　要：以清水为对照,于颖花开放前对杂交籼稻亲本"特A"、"培矮64S"和"9311"喷施MeJA(茉莉酸甲酯)和MeJA(茉莉酸甲酯)+BA(6-苄基腺嘌呤),比较两处理对颖花开放的调控差异。MeJA和MeJA+BA对"特A"和"培矮64S"颖花开放的诱导效应明显,提早了花时,提高了颖花开放的集中度,缩短了开花历期,对"9311"花时和花期的调控也有一定效果,两处理在花时和花期的效应上基本一致;MeJA使3个杂交亲本材料颖花开放角度和颖尖距离均有所缩小,MeJA+BA则略有增大;MeJA和MeJA+BA对杂交亲本材料的株高、剑叶长、外露颈穗长无明显影响。并讨论了MeJA与BA在杂交籼稻制种上的联合应用。Parents of Indica hybrid rice,＂TeA＂,＂Peiai64S＂ and ＂9311＂,were sprayed with MeJA（methyl jasmonate） and MeJA＋BA（6-benzyl adenine）before spikelet opening,with natural water as the control treatment and response of the rice to the treatments analyzed.MeJA and MeJA＋BA significantly improve spikelet opening time and concentration degree,and shorten opening duration of ＂TeA＂and ＂Peiai64S＂.MeJA and MeJA＋BA also has some effects on ＂9311＂spikelet opening time and duration.Both MeJA and MeJA＋BA have similar tendencies in effect on opening time and duration.MeJA decreases spikelet opening angle and the distance between opened spiklet tips of the three parent hybrids while MeJA＋BA slightly increases such effects on the above parameters.On the whole,MeJA and MeJA＋BA have no significant effects on plant height,flag leaf length,and exposed panicle length of the three parent rice.

关 键 词：MEJA MeJA+BA 杂交籼稻亲本 颖花开放 

分 类 号：S633.4[农业科学—蔬菜学]