Culture substrate for dendrobium candidum tissue-cultured seedlings

Abstract

The invention provides a culture substrate for dendrobium candidum tissue-cultured seedlings. The culture substrate comprises a first substrate layer, a second substrate layer, a third substrate layer and a fourth substrate layer from top to bottom sequentially, wherein the first substrate layer is formed by mixing laying of one or two kinds of crushed wood shavings and crushed bark, the second substrate layer is formed by laying of a plurality of small wood blocks, the third substrate layer is formed by laying of a plurality of long wood strips, and the fourth substrate layer is formed by laying of a plurality of crushed stones. According to the culture substrate for the dendrobium candidum tissue-cultured seedlings, the first substrate layer, the second substrate layer, the third substrate layer and the fourth substrate layer are arranged from top to bottom sequentially, and the substrate layers are made of different materials, so that the culture substrate for the dendrobium candidum tissue-cultured seedlings is low in pathogenic microorganism content and high in air permeability, seedling hardening is not required to be conducted when the substrate is used for culturing the dendrobium candidum tissue-cultured seedlings, and the survival rate of cultivation is high.

Description

technical field [0001] The invention relates to a culture substrate for dendrobium officinale tissue culture seedlings. Background technique [0002] Dendrobium candidum, also known as black knot grass, belongs to the epiphytic orchid of Orchidaceae, is a traditional precious Chinese medicinal material, and is known as "the first of the nine Chinese immortal grasses" by the people. Listed as the top grade in "Shen Nong's Materia Medica", it has the functions of nourishing yin and clearing heat, promoting body fluid and benefiting stomach, relieving cough and moistening lung, moistening throat and improving eyesight, improving human immunity, preventing and treating tumor and cardiovascular diseases, improving sleep, preventing cataract, prolonging life, etc. . [0003] The seeds of Dendrobium officinale are extremely small, with incomplete embryonic development and no endosperm tissue, and the germination rate is extremely low in the natural state. Coupled with long-ter...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of culture matrix of dendrobium candidum tissue culture seedlings to solve the problem that the tissue culture seedlings obtained by plant tissue culture grow in the tissue culture bottle for a long time, have low adaptability to the outside world, and the mortality rate after planting is often on the high side.

Images