干旱地区农业研究2011，Vol.29Issue(6)：74-78,5.
陇南雨养旱区播期与密度对冬小麦产量与品质的影响
Effects of sowing date and planting density on yield and quality of winter wheat in rained dryland areas of Longnan
摘要
Abstract
The effects of sowing date and planting density on yield and quality of winter wheat variety Tianxuan 45 were studied through field tests and quality analysis. The results showed that wheat yield were decreased along with the delay of sowing date, spikes of wheat were raised through increasing planting density to improve wheat yield. From the interaction of sowing date and density, the appropriate sowing date was from September 25 to October 1, seeding rate was increased along with the delay of sowing date from September 25,390 x 104 kernel/hm2 to October 1,570 x 104 kernel/ hm2. Protein content and sedimentation value were decreased, wet gluten content, dough development and sable time were increased along with the delay of sowing date. When the planting density was 390 x 10 kernel/hm , protein content and wet gluten content were the maximum value, which were 14.24% and 31.72% respectively. According the need, the proper sowing date and planting density would be determined to ensure the coordination of yield and quality of wheat.关键词
冬小麦/播期/密度/产量/品质/雨养旱区Key words
winter wheat/ sowing date/ planting density/ yield/ quality/ rained dryland area分类
农业科技引用本文复制引用
张耀辉,宋建荣,岳维云,周喜旺,何春雨..陇南雨养旱区播期与密度对冬小麦产量与品质的影响[J].干旱地区农业研究,2011,29(6):74-78,5.基金项目
国家星火计划重点项目(2010GA860003) （2010GA860003）
公益性行业(农业)科研专项经费项目(200903035) （农业）
