Method for cultivating begonia fangii using water

Abstract

The invention discloses a method for cultivating begonia fangii using water. The method comprises disinfecting mature leaves, laying a layer of absorbent cotton in an aseptic culture dish, and laying a layer of qualitative filter paper on the absorbent cotton; placing the leaves flatwise on the aseptic qualitative filter paper, soaking the absorbent cotton and the filter paper in a rooting nutrient solution to make the leaves root until 4 to 7 adventitious roots grow up at each petiole; supplementing an indefinite bud induction solution to wet the absorbent cotton and filter paper to make the leaves root until 5 to 10 buds grow up at each rooting portion, supplementing a 1 / 2 MS growth nutrient solution prepared by sterile water to cultivate until small leaves grow up from the germinal bus; and disinfecting the leaves in a shading shed, planting the leaves in a matrix, spraying in the shading shed to raise the humidity in air to obtain begonia fangii. According to the begonia fangii cultivated by the method, the survival rate is 99 to 100%, the germination rate is raised by 40%, the survival rate is raised by 30%, the period is shortened almost one time, so the method has a popularization meaning in breed conservation and production of begonia.

Description

technical field [0001] The invention relates to the technical field of plant asexual propagation, in particular to a hydroponic propagation method of Fang's begonias. Background technique [0002] Fang's Begonia ( Begonia fangii ) compound leaves, leathery leaves, red veins, with high ornamental value. At present, distilled water or sterile water can be used as the culture medium, and the cut leaves or leaves with petioles are used as the hydroponic propagation method in the absorbent cotton culture dish. The cut leaves or petioles take root slowly, 20 to 25 days, and the number of roots is small, 2 ~3, slender; no germination after rooting, even if it germinates, it takes 30-35 days for a long time to germinate, the number of buds is small, only 3-5, and the germination rate is low, only 30-40%; when transplanting, the root Extending into the absorbent cotton is easy to cause root breakage. Use peat or garden soil as the cultivation substrate. The soil is prone to water a...

AI Technical Summary

Problems solved by technology

At present, distilled water or sterile water can be used as the culture medium, and the cut leaves or leaves with petioles are used as the hydroponic propagation method in the absorbent cotton culture dish. The cut leaves or petioles take root slowly, 20 to 25 days, and the number of roots is small, 2 ~3, slender; no germination after rooting, even if it germinates, it takes 30-35 days for a long time to germinate, the number of buds is small, only 3-5, and the germination rate is low, only 30-40%; when transplanting, the root Extending into the absorbent cotton is easy to cause root breakage. Use peat or garden soil as the cultivation substrate. The soil is prone to water accumulation or hardening, causing root rot, and the adventitious root has weak water absorption capacity, photosynthesis is not strong, the survival rate is 60-70%, and the reproduction cycle is long. 60~65 days