遮光与摘心打顶对春扁豆花期和产量的影响

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摘要 通过遮光与摘心打顶处理对春扁豆3个品种花期和产量进行对比试验，结果表明，遮光和摘心打頂均能在一定程度上促使3个扁豆品种早开花，但效果因品种的熟性不同而不同;遮光+摘心打顶处理对3个品种产量均有一定的促进作用。生产上，可根据各个品种的特性，采取不同的促花促荚手段，以增产增效。

关键词 短日照;遮光;摘心打顶;顶端优势;产量

Abstract The flowering time and yield of three spring lentil cultivars were compared by shading and topping treatment. The results showed that both shading and topping treatment could promote the early flowering of three spring lentil cultivars to a certain extent， but the effect was different according to the ripeneness of the cultivars. The treatment of shading and topping promoted the yield of the three cultivars to some extent. Therefore， according to the characteristics of each variety， different means of promoting flower and pod can be adopted in production to increase yield and efficiency.

Key words Short day;Shading;Topping;Top advantage;Yield

短日照作物指只有当日照长度短于临界日长才能开花的植物，常见的有苍耳、牵牛、菊花等花卉，水稻、棉花、大豆等作物。（剩余3612字）