光—温敏核不育水稻花培后代育性转换特性研究  

STUDIES ON FERTILITY TRANSITION IN THE ANTHER CULTURE-DERIVED PROGENY OF PHOTOTHERMO-SENSITIVE GENIC MALE STERILE RICE

作　　者：谢戎[1] 邓锡洪 李欣莲 罗光才[1] 吴丽君[1] 何宣英 

机构地区：[1]四川省农科院水稻高粱研究所,泸州646100

出　　处：《西南农业大学学报（自然科学版）》1993年第5期450-453,共4页Journal of Southwest Agricultural University

摘　　要：对光—温敏核不育水稻花培后代在自然低温和人工光周期诱导下的育性研究表明,花培技术是选育和提纯光—温敏核不育水稻的重要辅助手段。在低温条件下,花培后代群体不育度在99％以上的植株,是供体亲本的7倍多。光周期对不同花培株系的诱导效果差异较大,02HS—4—1等株系不育性较稳定,可育期结实率较高。A study of the expression of fertility of anther culture—derived progeny of photo-thermo-sensitive genic male sterile rice under natural low temperature and artificial photoperiod induction has demonstrated that the technique of anther culture is an important supplementary means for selecting and purifying photo—thermo-sensitive genic male sterile rice genotypes. Under low temperature conditions, the sterility of pollen of the progeny population derived from anther culture (>99%) was seven times as high as that of the donor parent. Great variation was noticed among the anther-derived lines in the induction effects of photoperiod. OZHS-4-1 and a few others showed a comparatively stable sterility at the sterile phase and gave higher seed setting rate at their fertile phase.

关 键 词：水稻 花药培养 光温敏核不育 

分 类 号：S511.103.5[农业科学—作物学]