黄淮冬麦区早、晚熟冬小麦品种生长发育特性的研究

The growth developmental characteristics of late and early maturing winter wheat varieties in Huang-Huai-Hai Plain

对黄淮海冬麦区早熟小麦品种 (系 )“890 1 11 14”和日本国引种晚熟品种“黑小麦 1号”[TriticumaestivumL .(HeixiaomaiNo .1]与当地普通小麦品种“4 185”大田试验比较结果表明 ,晚熟品种“黑小麦 1号”不适宜在黄淮海平原(河北省藁城试区 )麦玉两熟套作种植 ,早熟小麦品种 (系 )“890 1 11 14”播期、生育期和收获期与普通小麦品种“4 185”基本相似 ,且其分蘖特性强、灌浆强度集中和株高适中 ,在该地种植有良好生态适应性 ;根据不同冬小麦品种分蘖特性大田栽培时应采取适宜对应措施 ,冬小麦品种“890 1 11 14”应适当降低其种植密度 ,并采用合理促控措施以提高其分蘖成穗率。

The comparing experiment between early maturing winter wheat variety '8901-11-14' and the variety of Triticum aestivum L.(Heixiaomai No.1), as well as the local planting variety '4185', was conducted in Huang-Huai-Hai Plain during the winter wheat growing season from October of 1999 to June of 2000. The results show that Triticum aestivum L.(Heixiaomai No.1) is not a suitable species for the area, while '8901-11-14' is the ideal species for its better ecological fitness concerning with its growth and developmental characteristics in the whole and the key developing time. The results suggest that the relative lesser sowing density can contribute to more harvestable spikes.