论文部分内容阅读
三个矮秆水稻雄性不育材料与高秆栽培混合品种(授粉者)隔行种植,研究其异交率据观察核不育类型(‘CaLady’和‘Earlirose’等),其结实率是极低的,这表明它对杂交水稻的种子生产或群体改良的无用处。1978年Bin-eo质不育源平均结实率为5.4,1979年为32.5％。这质不育源1979年发现自交结实为3.5％。因此1979年高结实的原因显然是由于父母本花期相遇。
Three dwarf rice male sterile materials and high-stalk hybrid cultivars (pollinators) were planted in interlacing and their outcrossing rates were studied. According to the observed types of nuclear infertility (’CaLady’ and ’Earlirose’, etc.), the seed setting rate was extremely low , Indicating that it is useless for seed production or population improvement of hybrid rice. In 1978, the average seed-setting rate of Bin-eo CMS was 5.4, and in 1979 it was 32.5%. This infertility source found in 1979 was 3.5% self-solid. Therefore, the reason for the high solidity in 1979 is apparently due to the encounters between parents and flowering.