关键词: 春型和冬型小麦, 非正常播期, 生育

Abstract: Experiments of wheat ecology were conducted in Beijing from 1988 to 1990. Springness ecotype of wheat cultivars have tillering stage of spring in late sowing stage in autumn, these cultivars could complete their life cycle by side stem ear. Springness and winterness wheat cultivars could attain to same growth stages such as flowering and maturation in these sowing stages, springness cultivars could have better thousand-grain weight. In early sowing stages at spring, winterness wheat cultivars could attain to stages such as earing, flowering and maturation. The concert of 0-15℃temperature and shorter day-length were ensured vernalization in field for winterness ecotype of wheat cultivars. Springness and winterness wheat cultivars have wider scope of ecological adaptation.

Key words: Wheat Tillering stage of spring Vernalization in field, Wheat Tillering stage of spring Vernalization in field