【作者】 刘金波； 宋兆强； 王宝祥； 李健； 杨波； 方兆伟； 迟铭； 卢百关； 刘艳； 周振玲； 秦德荣； 徐大勇；

【Author】 LIU Jin-Bo;SONG Zhao-Qiang;WANG Bao-Xiang;LI Jian;YANG Bo;FANG Zhao-wei;CHI Ming;LU Bai-Guan;LIU Yan;ZHOU Zhen-Ling;QIN De-Rong;XU Da-Yong;Academy of Lianyungang Agricultural Science/Jiangsu Collaborative Innovation Center for Modern Crop Productiong;

【机构】 江苏省连云港市农业科学院/江苏省现代作物生产协同创新中心；

【摘要】 水稻杂交杂种优势的研究与利用是提高水稻产量的主要途径。以两系不育系9311S和恢复系WHR2杂交产生的P1、P2、F1、B1、B2、F2六个世代为研究材料,利用主基因+多基因混合遗传模型分析株高、穗长和每穗总粒数三个性状的遗传效应。结果表明,穗长和每穗颖花数的遗传均符合1对加性主基因+加性-显性多基因模型,株高表现为1对加性主基因+加性-显性多基因模型或1对加性-显性主基因+加性-显性多基因模型,且均以加性效应为主。讨论了9311S的应用前景。更多还原

【Abstract】 Research and utilization of hybrid heterosis in rice are the main ways to increase the yield in rice.The genetic effects of plant height,panicle length and spikelets per panicle with P1,P2,F1,B1,B2,F2 six generation derived from the cross of the male sterile line 9311 S and restorer line WHR2 were studied based on the major gene-polygene mixed inheritance model.The results showed that the inheritances of the panicle length and spikelets per panicle were controlled by one major gene with additive effect plus polygene with additive-dominant effects,and plant height was mainly controlled by one major gene with additive effect plus polygene with additive-dominant effects, or one major gene with additive-dominant effect plus polygene with additive-dominant effects.For three traits, additive effects were principal.The application prospects of 9311 S were discussed.更多还原