扬麦16不同播期与密度试验

研究了扬麦16在不同播期与密度下的产量状况.结果表明,相同播期内,随着密度的增加,有效穗也随之提高.相同密度内,前3个播期的有效穗差异不大,最后1个播期的有效穗最少.4个播期随各自群体密度的增加,实粒数和成穗率随之减少.不同密度、不同播期处理间千粒重和结实率则无显著差异.扬麦16在大面积生产上以播期10月28日,基本苗...

Different Sowing Dates and Densityies of a Wheat Cultivar Yangmai 16

The Effects of different sowing dates and densities on the yields for a wheat cultivar Yangmai 16 were studied.The results showed that in the same sowing date,the effective panicles enhanced with the density of increase.In the same sowing density,the effective panicles among the first 3 sowing dates appeared less difference,but the least panicles in the last sowing date.The number of filled grains and effective panicle rates of different sowing dates all reduced due to the densities of the increase in their respective populations.There was no significant difference in 1000-grain weight and seed setting rate between different densities or sowing dates.To easily obtain high yield,the sowing date and density in the large-scale production of Yangmai 16 were October 28 and basic seedling of 160000/667m2 respectively.