摘要
对陕西关中地区小麦品种发育特性的研究表明 ,随着品种更换虽然进入幼穗伸长的时间缩短 ,但品种未出现春性化 ,开花期在品种间差异不大 ,但二棱期至开花期的时间缩短 ,这是感光性减弱的结果 ;由于伸长期至二棱期的时间延长 ,从而利于增花增粒。近期育成的大穗品种多有明显的春性化、强感光性 ,需要加以改进。
The development characteristics of wheat cultivars grown in Mid Shaanxi area were studied. The results indicated that there was not tendency changing from winter type to spring type during the wheat cultivars substitution, though the time of spike development trended to early. The anthesis did almost not change and the time from double ridge to anthesis shorted, which was result of weakening photoperiodism. Extending the time from initial elongation to double ridge of the apical cones was contribution to form big spike. But there were obvious spring and strong photoperiodism tendencies among present big spike cultivars. These need to improvement.
出处
《西北农业学报》
CSCD
2000年第1期62-67,共6页
Acta Agriculturae Boreali-occidentalis Sinica
关键词
小麦
发育特性
关中地区
Wheat
Development characteristic
Mid Shaanxi area
