鄂豆六号播种期初步研究

Study on the Sowing Period of `Edou No.6' Soybean

鄂豆六号属于春大豆中熟品种 ,其短日性较弱 ,感温性较强 ,春播全生育期 95～1 0 4d ,夏播 86～ 89d ,随着播种期的延迟 ,各生育阶段缩短并后移 ,全生育期长短主要取决于生育前期的日数。该品种耐迟播 ,适宜播期的幅度变化较大 ,4月 1日～ 6月 3日播种可以获得 2 85 0～ 3870kg/hm2 的单产 ,6月 1 0日～ 6月 1 7日播种的次之 ,7月 2 9日～ 8月

Edou No.6' soybean is a mid mature spring soybean. Its photoperiod sensitivity is weak,but its thermo sensitivity is strong.Sown in spring,the growth period can vary from 95 days to 104 days,when sown in summer,from 84 days to 89 days. That is to say, as sowing period is postponed, all growth stages are postponed and shortened. The whole growth period mainly depends on the length of early growth period. This cultiva is tolerant to later sowing. The period suitable for sowing is long. Sown from April 1st to June 3th, the average yield is from 2 850 kg/hm 2 to 3 870 kg/hm 2 ; sown from June 10th to June 17th,the output is lower; sown from July 29th to August 5th the output is even lower.