Petrocosmea qinlingensis seed propagation method under manual control condition

Abstract

The invention discloses a petrocosmea qinlingensis seed propagation method under a manual control condition. The method comprises the following steps: carrying out pollinating when petrocosmea qinlingensis corollas are completely expanded; adopting a plurality of plants and a plurality of inflorescences for cross pollination during pollination; and culturing and propagating the collected natural mature seeds of the petrocosmea qinlingensis through a matrix. The successful germination of the petrocosmea qinlingensis seeds provides a new idea for the artificial propagation of the petrocosmea qinlingensis. The method solves the problem that the genetic background of vegetative propagation is single, and has important scientific significance in research on population protection, development and application of the petrocosmea qinlingensis in the future. Compared with existing asexual propagation of petrocosmea qinlingensis, the method is simple, the cost is saved, the diversity of species is enriched, and due to the fact that the number of seeds in fruit pods is large, the artificial propagation efficiency is greatly improved. The method is simple and easy to operate. The method is easy to operate, expensive instruments and equipment are not needed, and the method can be implemented only by providing simple culture conditions.

Description

technical field [0001] The invention relates to the technical field of sexual reproduction of endangered rare plants under artificial conditions, in particular to a method for breeding Qinling stone butterfly seeds under artificial control conditions. Background technique [0002] Qinling Stone Butterfly (Petrocosmea qinlingensis W.T.Wang) belongs to Gesneriaceae, Petrocosmea genus, Chinese Stone Butterfly Group, perennial herb. The type specimen was collected by Mr. Fu Kunjun in a tea shop in Mian County, Shaanxi Province in 1952. When Professor Wang Wencai observed the specimen in 1981, he found that the inner surface of the upper lip of the corolla was covered with white soft hairs, which was different from the inner surface of the Chinese stone butterfly corolla. Therefore, it was identified as a new species and named Qinling Stone Butterfly. Many field investigations have been carried out in the past 30 years since its naming, but no wild populations have been found. ...

AI Technical Summary

Problems solved by technology

[0003] At present, the method of artificial reproduction of Qinling stone butterfly is mainly asexual reproduction, including leaf cuttings and tissue culture, etc., but the seedlings of Qinling stone butterfly obtained by this method are all from asexual reproduction, there is no gene exchange, and the genetic type is relatively single, which reduces the risk of Qinling stone butterfly. species diversity, which is not conducive to the return to the wild and ex situ conservation of Qinling stone butterflies in the later period

Although the Qinling stone butterfly is considered to maintain the population in two ways, sexual reproduction and asexual reproduction, but the sexual reproduction method has not been confirmed

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