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GA_3是赤霉素的一种,是目前应用较为广泛的植物生长调节剂。它主要经芽、嫩枝、叶片、根、花、果实等进入植物体内,然后传导到生长活跃的部位起作用。在牡丹催花中的主要作用是解除休眠、促进茎伸长、叶片扩大、提前开花等。具体应用技术如下:1.解除休眠:牡丹进入温室20天左右仍不萌动、发芽的,说明其未能自然解除休眠,这时可以用GA~3处理,促其萌动、发芽,达到提前开花的目的(切忌在牡丹刚进入温室时对所有植株用GA_3处
GA_3 is a kind of gibberellin, which is the most widely used plant growth regulator. It is mainly through the buds, twigs, leaves, roots, flowers, fruits and other plants into the body, and then conduction to the active site of growth to play a role. The main role in promoting peony flower is to lift dormancy, promote stem elongation, leaf expansion, flowering in advance. Specific application of technology are as follows: 1. To lift dormancy: Peony into the greenhouse about 20 days is still not sprouting, germination, indicating that it failed to naturally release the dormancy, then GA ~ 3 can be used to promote its germination, germination, reaching early flowering Purpose (Do not use GA_3 for all plants when peony is in the greenhouse