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1979年春季,我们在海南岛配制汕优3号种时,为了使母本穗散开,减轻包颈,提高异交率,当母本抽穗后进行敲穗(用小竹杆在母本穗上拨动)。在此基础上,我们又进行了拍穗试验,当父母本都进入盛穗期,选择晴天上午10时前后,父本颖花少数张开时,用草帽在母本穗上拍一拍。试验结果表明,拍穗的每穗实粒36.4,结实率30.04％,折亩产280.3斤;未拍的每穗实粒32.6,结实率26.44％,折亩产251斤。秋季在淮安县配制汕优2号进行试验,取得相似结果。
In the spring of 1979, when we formulated Shanyou 3 in Hainan Island, in order to disperse the female ear, reduce the neck of the female and raise the rate of out-crossing, Toggle). On this basis, we also conducted a spike test, when the parents are entering the Shing-spike period, choose sunny around 10 o’clock in the morning, when the father spruce a few open, with a straw hat on the female parent pan shot. The results showed that the actual yield per panicle was 36.4%, the seed setting rate was 30.04%, and the yield per hectare was 280.3 kg. The unperformed grain per panicle was 32.6, the seed setting rate was 26.44%, and the yield per mu was 251 kg. Autumn in Huai’an County, Shanyou 2 trial, similar results were obtained.