两用核不育系绵9S在绵阳自然条件下的育性转换规律研究  

Studies on Fertility Variation of Genic Male Sterile Line (GMS) Mian 9S Under Mianyang Natural Conditions

作　　者：侍守佩[1] 王志[1] 黄廷友[1] 褚旭东[1] 彭涛[1] 叶盛[1] 刘定友[1] 项祖芬[1] 石军[1] 

机构地区：[1]绵阳市农业科学研究所,四川绵阳621023

出　　处：《西南农业学报》2009年第4期1184-1186,共3页Southwest China Journal of Agricultural Sciences

基　　金：四川省应用基础研究(2008JY0137);四川省青年科技基金(07ZQ026-126);四川省十一.五育种攻关(2006YZGG01)

摘　　要：研究了籼型两用核不育系绵9S在绵阳自然条件下的育性转换规律。通过4月11日至7月10日共19期的分期播种试验,结果表明:绵9S在绵阳自然条件下7月5日抽穗即表现不育,9月10日以后开始转可育;稳定不育期65d左右;在可育期内的9月20日左右抽穗结实最高,产量可达5.869t/hm2。The fertility variation of Genie Male Sterile Line（GMS） Indica Rice Mian9S under Mianyang natural conditions was studied by different seeding date. The results showed that the plants which heading date were the July 5th were sterile ,and fertile after the September 10th in Mianyang natural conditions. The period of stable sterile was about 65d,in the fertile period , the multiplying yield grains could reach to 5. 869 t/hm^2 on this condition that heading date was about the September 20th.

关 键 词：绵9S 核不育系 自然条件 

分 类 号：S511.035[农业科学—作物学]