摘要:
选用两个早籼不育系(A):野败质源的V20A和印尼水田谷6号质源的珍鼎28A及其保持系(B)、6个恢复系(R)和一个美国早籼品种兰贝利(V)(Blue Belle)为亲本,配制包括A/B,A/R(V),B/R(V),R(V)/B在内的组合72个。研究表明:该两个不育系(保持系)中控制抽穗期的主基因存在差异;不同恢复系(品种)中的主基因也可能不相同;这两种细胞质对杂交水稻F1抽穗期的影响均不明显。
Abstract:
Two early-maturing indica male sterile lines(A), V20A with the cytoplasm from the wild abortive rice plant, and Zhen Ding 28A with the cytoplasm from the Indonesian paddy rice NO. 6, and their maintainer lines(B), six indica restorer lines(R)and an American early-maturing indice variety(V), Blue Belle, were used as parents to produce 72 F1 crosses including A/B, A/R(V), B/R(V), R(V)/B. The results of genetic analysis of heading time of F1 hybrids could be summarized as follows:1)The major genes for heading are apparently different in these two male sterile lines(maintainer lines).2)There could be different in the major genes in the restorer lines(variety).3)Both of the two kinds of the cytoplasms of male sterility have no apparent effect on the heading time.
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