摘要
对冬小麦品种北移 1号在原种植地 (太谷 )与北移区种植地 (应县 )两地生育差异的比较分析表明 ,冬麦北移后生育期的表现为冬前生长期短、返青拔节期短、拔节至抽穗期短、越冬期长、抽穗至成熟期长的‘三短两长’特点 ,致使营养生长有效期极大地缩短 ,营养生长至生殖生长的过渡期也相应缩短 ,而生殖生长期明显延长 ,导致株高降低、节间变短变细变实、强度明显提高 ,虽然单株分蘖几乎很少成穗 ,单株绿色营养面积也很小 ,但在较高的水肥与合理密植条件下 ,由于单茎穗粒重高、经济系数大 。
The growth and developing difference of winter wheat variety Beiyi1 were studied at Ying County (northern region) and Taigu County (original region). Results showed that the growing period of wheat was characterized by 'three long and two short' in northern region. The period of vegetative growth shorted greatly and the transition stage from vegetative growth to reproductive growth also shorted, while the reproductive growth stage was longer than wheat planted at original region. So the plant height was shorter, internode length was shorter and the width was thinner. The spike number and green leaf area of wheat decreased. As the 1000 grain weight and economic coefficient were higher at Ying County than at Taigu County, high yields also could be gained in the fertile fields at Ying County.
出处
《中国农业科学》
CAS
CSCD
北大核心
2003年第1期31-36,共6页
Scientia Agricultura Sinica
基金
山西省重大科技攻关资助项目 (9610 0 7 7)
关键词
冬小麦
冬麦北移
生长发育
产量构成因素
抗寒性
产量
Triticum aestivum L.
Winter wheat growth in northern region
Growth and development
Yield compositions
