Study on Density and Sowing Date of High Yield and High Resistance Wheat Variety Linmai 9
[Objective]The aim was to determine the suitable density and sowing date for wheat varieties in the southern Shandong region.[Method]The density and sowing date experiments were designed with Linmai 9 as material,and the effects of different density and sowing date on population dynamics and dry matter accumulation of wheat were studied.[Result]When the density was 1.2 million,1.8 million and 2.4 million/hm2,the yield was 9 220.2,9 292.4,8 948.6 kg/hm2,respectively.The analysis of variance of yield under sowing date treatment showed that there was no significant difference between October 6th and October 13rd and October 20th,and there was significant difference between October 6th and October 27th and November 2nd.[Conclusion]The suitable planting density for wheat in the southern region of Shandong should be controlled between 1.2 to 1.8 million/hm2 of basic seedlings,and the suitable sowing period should be from October 6th to October 20th.
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