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1.在诱导的长日条件下赤霉素可以促进长日性植物雪里蕻、矢车菊植株提早开花,又可诱导要求低温的二年生植物乌塌菜开花。在非诱导的短日条件下赤霉素可以诱导雪里蕻、矢车菊、乌塌菜植株现蕾。但是要求冬性较强的二年生植物乌塌菜开花所需的赤霉素剂量比雪里蕻、矢车菊为高。因此赤霉素可以替代长日性植物的光照条件及要求低温的二年生植物的低温作用,是与Lang用二年生天仙子等以及用金光菊(Rudbeckia bicolor)、冬洋油菜(Brassica napus v.oleifera)等植物所得的结果是一致的。 2.赤霉素可以打破多年生蓿根性植物如芍药、牡丹休眠芽的休眠而提前开花。 3.赤霉素对鳞茎类植物如漳州水仙、风信子植物的开花没有促进作用。
1. Induction of long-day conditions gibberellin can promote the long-day plant snow lily, cornflowers early flowering plants, but also can induce the request of the biennial flowering plants. In the non-induced short-day conditions gibberellin can induce snow Lily, cornflower, black-bearing plants buds. However, the amount of gibberellins required for the flowering of perennial plants, perennials, which are more wintering, is higher than that of snow shrimps and cornflowers. Therefore, gibberellin can replace the light conditions of long-day plants and the low temperature of the biennial plant cryogenic effect, and Lang with biennial fairy and the like, as well as with Rudbeckia bicolor, Brassica napus v.oleifera The results obtained by other plants are consistent. 2. Gibberellin can break perennial brassica root plants such as peony, peony sleeping bud dormancy and flowering in advance. Gibberellin bulbs such as Zhangzhou daffodils, hyacinth plants flowering did not promote the role.