Method for promoting the development of pen holder tree by regulating environmental factors

Abstract

The invention provides a method for promoting the development of the pen holder tree by adjusting environmental factors, especially by adjusting the substrate type and porosity of the seedling tray to promote the spore germination and gametophyte development of the pen holder tree, and adjusting the substrate type of the seedling pot to promote the seedling stage of the pen holder tree after transplanting Growth, and through the regulation of factors such as different picking periods, sowing methods, substrate types, and transplanting timing, the spore breeding system of the pen container tree was initially established to realize the precise control of the entire process of the pen container tree from spores, gametophytes, sporophytes, and seedlings. Effectively solved the technical problem of pen holder tree breeding.

Description

technical field [0001] The invention relates to the technical field of agricultural cultivation, in particular to a method for promoting the growth of pen holder trees by adjusting environmental factors. Background technique [0002] Sphaeropteris lepifera is a tree fern of the genus Sphaeropteris in the family Cyatheaceae. It has a slender trunk, a crown like an umbrella, and large and dense leaf scars. It is a rare fern. The pen holder tree not only has excellent ornamental value, but also has important value in speciation, paleoclimate research and paleontology, and is also of great significance in studying the relationship between the flora of mainland China and Taiwan, China. Under natural conditions, the reproduction of the pen holder tree mainly depends on the spores produced on the back of the leaves, but the spores have defects such as short life span and long reproduction cycle, which limit their natural growth; From destructive felling to severe depletion of natur...

AI Technical Summary

Problems solved by technology

After research, the pen holder tree has strict requirements on the type of substrate, that is, bulk density, porosity, water retention, air permeability and nutrient supply. Commonly used substrates such as peat soil, vermiculite, river sand, ceramsite and other mixed substrates cannot achieve high The spore germination rate is high, and the combination of the above-mentioned substrates has not achieved the desired effect during the subsequent gametophyte growth.

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