上海地区不同播期对豌豆的影响

THE INFLUENCE OF DIFFERENT PLANTING DATA ON THE PERFORMANCE OF PEA(Pisom sativam L.) IN SHANGHAI AREA

通过1986～1988年的豌豆田间播期试验,结果表明:不同播期对豌豆的影响在不同的基因型间有明显的差别。这种差别主要表现在出苗率,冻害程度,青荚产量和成熟后的干籽产量等方面。由试验分析可知,在上海地区,秋播甜咔嚓豌豆的播期与干籽产量关系可用曲线方程;y=6.7952×e^(0.0276X)表示,最佳播期在11月7日左右;秋播青浦豌豆适播期较宽,但适时早播有利于增产,其播期与产量关系可用直线方程;y=172.4512-1.8177X表示。于9月上旬所播的甜咔嚓和小青荚豌豆,无需保护设施,年内均可收获一定量的青荚。

The experiments of different planting date of pea(Pisum sativum L.)were made from 1986 to 1988.The results showed that the influnence of different planting date on the performance of pea was signicant,which was expressed in the sprouting rate, frozen resistance, plant survival rate and the yield of green pod and dry mature seed.The results also showed that the best planting date was about November 7 for Sweet Snap pea and October 8 to 28 for Qin Pu pea respectively, and the relationship between the yield of dry mature seed and planting date could be expressed in curve y=6.7952×e^(-0.0276_x) for fall planted Sweet Snap pea and in liner y=172.4512-1. 8177x for fall planted Qin Pu pea.When Sweet Snap pea and Alaska pea were planted during August 31 to December t0 the green pod could beharvested in Shanghai area.