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花生飽果率一般只佔开花数的13—17%,如何提高飽果率,我們于1962年在省农业科学院作物研究所,以山东伏花生为材料,从研究花生开花結果习性着手,探索影响飽果形成的因素,进而提出提高饱果率的有效措施。伏花生在合肥夏播后,二十七至三十一天就始花,每天开花数一般是六至八朵,花期为五十至六十天。单株开花数可达四百朵以上,开花数出現的高峰是在始花后的二十天,到三十天后逐漸下降,五十天后进入末期。由于伏花生开花数多,花期較长,又分散于植株的各个部位,受生理活动和不同环境条件影响,开花結果率很低,只有22.2%,而飽果率只有13.5%。花、針、果在植株上的分布,从单株不同分枝来看,第一对分枝上的花、針、果占全株的50%以上,第二对分枝占全株的20%左右,第三对分枝只占全株的5%,第四对以上分枝則更少;飽癟果分布亦有这样趋
Peanut full fruit rate is generally only accounted for 13-17% of the number of flowering, how to improve the full fruit rate, we in 1962 at the Institute of Crop Sciences, Provincial Academy of Agricultural Sciences, Shandong peanut as material, from the flowering habits of peanut research to explore the impact Full fruit formation factors, and then put forward to improve the full fruit rate of effective measures. Summer perennial in Hefei after sowing, twenty-seven to thirty-one days before the flowering, the number of flowers per day is generally six to eight, the flowering of fifty to sixty days. The number of flowers per plant up to four hundred or more, the number of flowering peak appears in the first twenty days after the flower, gradually decreased after thirty days, fifty days into the final. Due to the large number of flowering peanut flowers, flowering longer, but also scattered in all parts of the plant, under the influence of physiological activities and different environmental conditions, the flowering rate is very low, only 22.2%, while the full rate of only 13.5%. Flowers, needles, fruit distribution in the plant, from the different branches of the plant point of view, the first pair of branches on the flowers, needles, fruits accounted for more than 50% of the whole plant, the second pair of branches accounted for 20 % Or so, the third pair of branches accounted for only 5% of the whole plant, the fourth branch is more than less; full deflated fruit distribution also has such trends