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为了探索保持杂交水稻杂种优势连续利用的有效途径,1982年以来,我们采用化学诱导加延迟授粉进行籼型杂交水稻孤雌生殖育种研究.先后从汕优菲一、汕优桂8、汕优2号和威优35等籼型杂交水稻F_1中,选育出几个性状稳定而不必制种的稳定品系.其中HP_(12)(汕优菲—PA_4)基本上保持了原杂交水稻F_1的产量优势以及抗稻瘟和优质等特性.目前正参加省早稻良种区试迟熟组预试,并在永定、长乐和福州郊区大面积示范试种.现将几年来的研究结果报告如下.
In order to explore an effective way to maintain the continuous utilization of heterosis in hybrid rice, we used chemical induction and delayed pollination to study the parthenogenesis breeding of indica hybrid rice since 1982. We studied on the parthenogenesis of indica hybrid rice from Shanyouyouyi, Shanyougui 8 and Shanyou 2 No. 12 and Weiyou 35 among which, stable strains without stable seed production were bred, and HP_ (12) (ShanyouFei-PA_4) basically maintained the yield of F_1 of the original hybrid rice Advantages and resistance to rice blast and high quality and other characteristics.At present, is participating in pre-test rice early maturing varieties of early rice province, and in Yongding, Changle and Fuzhou suburbs of large-scale demonstration of trial now report the results of the past few years are as follows.