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水稻孤雌生殖育种具有花培单倍体育种快速稳定的特点,可缩短育种年限,提高选择效率,且操作较为简单方便.近年来,国内不少单位开展这一项研究.已从油菜、小麦及水稻等作物中培育出一些新品种,在生产上示范推广.但目前仍然普遍存在着诱导频率偏低的难题.以处理颖花数计算,一般子房膨大率可达30～40%.但种子结实率仅为0.4～1.64%.
Parthenogenetic rice breeding has the characteristics of rapid and stable haploid breeding, which can shorten the breeding life and improve the selection efficiency, and the operation is relatively simple and convenient.In recent years, many domestic units to carry out this study has been rapeseed, wheat And rice and other crops to cultivate a number of new varieties in the production of demonstration and promotion.But there is still widespread low induction frequency of the problem.To deal with the number of spikes calculation, the general rate of ovarian enlargement of up to 30 to 40% Seeds seed set rate of only 0.4 to 1.64%.