江西农业学报2012，Vol.24Issue(5)：21-23,3.
江苏淮北地区不同类型晚播稻茬小麦产量形成特点
Characteristics of Yield Formation of Late - sown Wheat after Rice in Huaibei Area of Jiangsu Province
摘要
Abstract
For semi -winter wheat cultivars Huaimai 28 and Huaimai 20, when their planting density was 2.7 million basic seedlings per hectare, their yields were lower because of low dry matter accumulation, insufficient spikes and significantly lower grains per spike. When their planting density was 3. 6 million basic seedlings per hectare, their yields were obviously increased due to more spikes and more harmonious yield components. As for weak -spring wheat cultivars Huaimai 30 and Zhengmai 9023, their dry matter accumulations per plant before overwintering were not significantly different from those of Huaimai 28 and Huaimai 20, but their mass dry matter accumulations from heading to maturity and yields were significantly higher than those of Huaimai 28 and Huaimai 20 under the condition of low planting density (2.7 million basic seedlings per hectare). When the planting density of wheat was 3.6 million basic seedlings per hectare, the mass dry matter accumulation from heading to maturity and yield of Huaimai 30 were significandy higher than those of Huaimai 28 and Huaimai 20, while those of Zhengmai 9023 were not significantly different from those of Huaimai 28.关键词
晚播/小麦/干物质积累量/产量Key words
Late sowing/ Wheat/ Dry matter accumulation/ Yield分类
农业科技引用本文复制引用
周羊梅,顾正中,王安邦..江苏淮北地区不同类型晚播稻茬小麦产量形成特点[J].江西农业学报,2012,24(5):21-23,3.基金项目
江苏省科技支撑计划(BE2010389) （BE2010389）
