一些冬性小麦品种在华南的生育表现

通过在华南三省、区(福建、广东、广西,下同)三年九次分期栽培试验,对全国十大麦区不同类型的三十一个小麦品种研究结果,冬性品种在华南秋、冬播均能抽穗、开花、结实,而且其生育期比在北方冬麦区的缩短。试验结果肯定了冬性小麦的光周期反应属长日照作物,而春化阶段则不同。有的品种不需经过低温春化阶段,只要满足一定的营养生长期就能发育;有的以短日照代替低温春化作用;有的通过温、光的互补作用。这些结果对小麦栽培、育种和引种均有一定的参考价值。

GROWTH PERFORMANCE OF SOME WINTER WHEAT VARIETIES IN SOUTH CHINA

Nine cultural experiments at different times were conducted in South China wheat-growing areas for three years, from 1982 to 1985, in order to study the growth performance of thirty-one different types of winter wheat varieties coming from ten wheat-growing areas in China. The results showed that all varieties could attain to stages such as earing, flowering, and fertilizing when they were sown in autumn and winter in South China, and their growing periods were also shortened in comparison with those planted in North China. It was also confirmed that winter wheat was a long-day crop plant aecording to their photoperiodie responses, however, the vernalizational responses of these winter wheat varieties were divided into three types: some passed through vernalization without low temperature provided that the vegetative growth stage was well developed,while some preferred short-day instead of low temperature for their vernalizations, and some required alternations of low temperature and shortday treatments. These results may be of use for references in the introduction, breeding and cultural practiees of wheat.