The Application of Bentazon Susceptible Gene on Seed Production of Hybrid Rice  

苯达松敏感基因在杂交水稻制种技术上的应用研究（英文）

作　　者：王士梅[1] 朱启升[1] 汪婉琳[1] 张德文[1] 杨前进[1] 王云生[2] 

机构地区：[1]安徽省农业科学院绿色食品工程研究所,安徽合肥230031 [2]安徽农业大学,安徽合肥230036

出　　处：《Agricultural Science & Technology》2008年第1期99-103,145,共6页农业科学与技术（英文版）

基　　金：Supported by the Important Science and Technology Key Project of An-hui Eleventh-five Year Plan(06003010B);the International Cooperation Program of Anhui Province(06088013)~~

摘　　要：The seed production of male and female parent of ‘Hunzhi 1＇ contained bentazon susceptible gene was studied. The result showed that spraying 3. 375 L/hm2 48% bentazon aqua could control the self-pollinated fertilization rate below 1.0% and survival plant rate was 0. The spray of bentazon would not influence MC526 pollen vitality. Seed setting rate of female parent was not obvious different from that of control group with spraying bentazon aqua more than 3. 375 L/hm^2 from the sprouting appearing period to full heading stage. This demonstrated that bentazon aqua had no influence on seed setting rate during florescence of female parent. The weight ratio between male parent seeds and female parent seeds was 1 to 5, then seeds from parents with that weight ratio would be mixedly planted for seed production. With this weight ratio, relative proper structure of panicle and grain would be obtained ,panicle ratio was 1 to 4.3, glumous flowers ratio was 1 to 3.5. Cross seed-setting rate of female parent was 72.6% and seed production per hm^2 was 66 000 kg.笔者自1996年起，就致力于苯达松致死基因在杂交稻制种上的应用研究。经过多年努力，已经成功选育含bel基因的恢复系，且在国内外首次培育了可混播制种的杂交组合“混制1号”。对该组合及其父、母本进行几项关键技术研究，为完善大面积机械化制种技术奠定基础。

关 键 词：Hybrid rice BENTAZON Susceptible restorer Technique of seed production 

分 类 号：S511[农业科学—作物学]