Title: Effect of Planting Density and Sowing Date on Population Traits and Grain Yield of New Wheat Cultivar Emai 596
Abstract: In order to provide suitable cultivation measures for the large scale extension of Emai 596, a new wheat variety bred by the Institute of Food Crops of Hubei Academy of Agricultural Sciences, the effects of planting densities and sowing dates on related traits were investigated.The results showed that planting density and sowing date had great effects on total culms.Grain-filling of Emai 596 best fit Logistic Growth Equation.The effects of sowing date on Grain-filling characteristics were great, and those of planting density were small.The effects of planting density on spike number per hectare and grains per spike were significant, but not significant on thousand-grain weight.Sowing date had significant effects on three yield components.Planting density and sowing date had no significant interactions on yield and three yield components.Even though there was no statistically significant difference among the average yields of the three planting densities ,the density 2 250 thousand seedlings per hectare had higher yield and coordinated yield components.There were significant differences among the average yields of all sowing dates.Sowing on November 3 had the highest average yield, but without significant difference with the average yield sown on November 11.The yield differences among four sowing dates were contributed mainly by the decrease of grains per spike, which were induced by the abnormal low temperature in spring.Based on the results, the suitable density was 1 950 to 2 250 thousand seedlings per hectare with an appropriate delay of the sowing date according to the local weather.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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