文献类型： 会议论文

第一作者： X. G. Lu

作者： X. G. Lu ¹ ; Z. G. Zhang ² ; K. Maruyama ³ ; S. S. Virmani ⁴ ;

作者机构： 1.Hubei Academy of Agricultural Sciences, Wuhan, Hubei 4300064, People's Republic of China

2.Agronomy Department, Huazhong Agricultural University, Wuhan, Hubei 430070, People's Republic of China

3.Heterosis Breeding Laboratory, National Agricultural Research Center, Kannondai, Tsukuba 305, Japan

4.International Rice Research Institute, P.O. Box 933, Manila 1099,Philippines

会议名称： International symposium on hybrid rice

主办单位：

页码： 1-13

摘要： Photoperiod-sensitive genic male sterile (PGMS) rice could shift the development of rice hybrids from the three- to the two-line method. Thermosensitive genic male sterility is another tool for the two-line system. Fertility alteration of PGMS is simultaneously regulated by both photoperiod and temperature. Photoperiod regulates the fertility alteration within a certain temperature range. The span of the range varies as the sterility genes are transferred to different genetic backgrounds. A line with a wide temperature range of photoperiod sensitivity is desirable. The two-line method has helped in developing promising intervarietal group (indica/japonica) hybrid combinations.In 1991, two-line hybrids were planted to 20,000 ha throughout China. The two-line method has been exploited commercially in China since 1992.

分类号： Q781`S334