【摘要】 金秋梨自展叶到叶面积几乎停止扩大所需时间需24d,前12d叶片生长速度快,叶面积迅速增大;12d以后,叶片扩展缓慢,叶面积增加速率慢;24d后,叶片几乎停止生长。新梢的加长生长和加粗生长均可分为3个时期,持续时间与新梢种类有关。金秋梨果实的生长速率有3个高峰,分别在花后40d、82d和131d。更多还原

【Abstract】 It take 24 days for Jinqiu pear leaf to stop enlarge since starting growth,the leaf grow and its area enlarge fleetly,contrarily after 12 days;the leaf grow stop grow after 24days. Long growth and thicking growth of new twig are classed 3 phases,duration is relaxed with kinds of new twig.The fruit growth rate have three peaks:the first when 40 days after anthesis,the sceond when 82 days after anthesis,the third 131 days after anthesis.更多还原