播期和密度对小麦生选6号产量和品质的影响

在江苏六合研究了播期和密度对小麦品种生选6号产量和品质性状的影响。结果显示:产量随播期的推迟而降低,随密度的增加而升高;产量与群体大小呈极显著正相关,与籽粒容重、籽粒蛋白含量、出粉率、面粉蛋白含量、饼干延展系数呈显著负相关;播期和密度对小麦群体大小、面团软化度和公差指数影响显著,但对饼干加工品质影响不显著。生选6号应在10月底至11月10日播种,适宜密度为240万~300万/hm2。

Effects of Sowing Date and Density on Yield and Quality of Wheat Variety Shengxuan 6

The effects of sowing date and density on the yield and quality characters of wheat variety Shengxuan 6 were studied in Luhe, Jiangsu.The results showed that wheat yield declined with the postponing of sowing date , and rose with the increase in density;the yield was very significantly positively correlated with the population size , and was significantly negatively correlated with the grain unit weight , protein content in grain , flour extraction rate , protein content in flour , and cookie spread ratio; sowing date and density had significant influences on the population size , paste softening degree and tolerance index of wheat , but they had no significant effects on cookie processing quality .The proper sowing date of Shengxuan 6 was from the end of October to November 10th, and its suitable density was 2400000~3000000 plants per hectare .