【摘要】 通过品种对温光互作反应的作用力分析和回归分析,看出供试的南方北方17个品种可分为光敏感类群(春性,强春性),温敏感类群(冬性、强冬性),温光兼敏感类群(半冬性)。在具有不同程度春化效应的品种中,温光作用的先后也有三种类型,即春化光照并进型(半冬性),春化半提前型(冬性,强冬性),春化提前型(超强冬性、春化要求60天以上的晚熟品种)。更多还原

【Abstract】 Combined effects of temperature (T) and daylength (D) on 17 representative Chinese cultivars collected from north to south were studied. It was shown that, the varietal sensitivity to I light and temperature could be classified into three different groups, i.e. light-sensitive (spring and strong spring varieties), temperature-sensitive (winter and strong winter varieties) and temperature and light sensitive (semi-winter varieties). According to the time sequence of temperature and light effects on the development of wheat plant as indicated by the seedling-heading period (SH), three different types were classified, i.e. vernalization and light effects started simultaneously (semi-winter type), lightheffect started after half-vernalization (winter type), and then effect of light began when vernalization was completed (strong winter type).更多还原