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一项改进的水稻杂交技术已被提出。选择刚刚开花的穗在下午去雄,自花受精的小花用剪刀剪掉。所余小花,横截其外颖与内颖以及附着于花丝上面的花药,然后立刻用镊子去掉剪颖小花的雄蕊残余。第二天早晨,在剪颖小花上面,摇动撒粉的穗,给去雄的穗授粉。在两个试验季节,应用大量亲本,从58,257朵剪颖小花中,获得了39.6%的结实率。杂种种子虽然畸形,但有正常的生活力,并产生正常的 F_1代植株,自花受精百分率低。除了非常高的结实率和低的自花受精数量以外,这种杂种技术提供了显著的优越性。操作既简单又迅速。去雄与授粉分成下午和早晨进行,增加了一天内进行杂交的数量。如果恶劣的气候条件减少撒粉,授粉可推迟2—3天。
An improved rice hybridization technique has been proposed. Select just the spikes of flowering in the afternoon to emasculate, flower pruning flowers cut with scissors. The remaining floret, transposing its external and internal prongs, and the anthers attached to the filaments, then immediately remove the stamen remnants of the flowering floret with tweezers. The next morning, above the shearing florets, the spatula was shaken to pollinate the emasciated ear. In both trial seasons, a large number of parents were used, with 39.6% seed setting out of 58,257 cut-flower flowers. Although hybrid seeds deformity, but have normal viability and produce normal F1 plants, the percentage of self-fertilization is low. In addition to the very high seed setting rate and low number of self-fertilization, this hybrid technique offers significant advantages. The operation is easy and quick Forced and poll divided into afternoon and morning, increasing the number of crossings within a day. Pollination can be postponed for 2-3 days if poor weather conditions reduce dusting.