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一九七七年早季,在我系实验农场播插少量的IR_(24),是福建省农科院杂交水稻研究室提供的种子。生育过程中IR_(24)出现明显的生育期分离,基本上可分为早、中、迟熟三种类型。中熟类型为基本型代表原来品种的熟期,早熟、迟熟类型是变异型。为了比较IR_(24)自然群体中不同熟期类型对V_(41)A的恢复能力和杂种优势的情况,我们将早、中、迟熟类型的IR_(24)均留兜再生进行测交试验。不育V_(41)A也是福建省农科院杂交水稻
In the early part of 1977, a small amount of IR_ (24) was sowed in our experimental farm, which is the seed provided by the Hybrid Rice Research Institute of Fujian Academy of Agricultural Sciences. IR_ (24) during fertility showed obvious separation of growth period, which could be divided into three types: early, middle and late maturity. Maturity type as the basic type of the original varieties of mature, early maturity, late-maturing types are variant. In order to compare the recovery ability and heterosis of V_ (41) A in different maturity types of natural population of IR 24, the early, middle and late ripening IR_ (24) . Infertility V_ (41) A is also a hybrid rice of Fujian Academy of Agricultural Sciences