野生大豆(G.soja)自然临界温度的研究

STUDY ON THE "NATURAL CRITICAL TEMPERATURE" OF WILD SOYBEAN

摘要:

在8～18小时八种控光条件下,代表性纬度野生大豆(G.soja),在与该材料自然临界光照时数接近的光周期中,随控光试验生育期间气温动态,反应出类似原产地固定模式的生长发育规律。从而提出代表性纬度野生大豆的自然临界温度:25°N为23.77℃;30°N为22.98℃;35°N为22.13℃;40°N为21.04℃;45°N为20.25℃;50°N为18.32℃。

Abstract:

Based on the observation of the relation between the temperature and the growth of the wild soybean at its original location,it was found that the termination of the terminate vegetative growth of the local wild soybean approximately coincided with the date when the mean maximum cumulative day temperature appeared,being from 10℃. This temperature is called as Natural Critical Temperaure（NCT）. The values of NCT at different latitudinal locations were as follows :25°N is 23. 77℃ ,30°N is 22. 98℃ ,35°N is 22.13℃ ,40°N is 21.04℃,45°N is 19. 95℃,50°N is 18. 32℃.