Hydroponic Propagation Method of Fang's Begonia

Abstract

The invention discloses a hydroponic propagation method of Begonia fangshii. The mature leaves are sterilized, a layer of absorbent cotton is spread in a sterile culture dish, and a layer of sterile qualitative filter paper is laid on it; the leaves are placed flat on the sterile qualitative filter paper, Soak absorbent cotton and filter paper with rooting culture solution for rooting culture until 4 to 7 adventitious roots grow from the petiole; add adventitious bud induction solution to moisten absorbent cotton and filter paper for rooting culture until 5 to 10 buds germinate at the root, supplement without The 1 / 2 MS growth medium prepared with bacterial water continued to be cultivated until the germinated buds developed and grew small leaves; the leaves were sterilized in the shade shed, planted in the substrate, and sprayed into the shade shed to increase the air humidity to obtain begonia seedlings. The begonia Fangshi bred by the method has a survival rate of 99-100%, a germination rate increased by 40%, a survival rate increased by 30%, and a period shortened by nearly one time, which has popularization significance in begonia species conservation and production.

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