Cuckoo greenhouse seedling thinning transplantation method

Abstract

A cuckoo greenhouse seedling thinning transplantation method comprises the following steps of building of a seedbed structure after tissue cultivation, wherein the seedbed after the tissue cultivation is formed by a ground part, a permeation method, a manual matrix and a drain system, and the size, north-south trend and interval of the seedbed after the tissue cultivation are determined according to the facility cultivation space and the specific operation mode; performing seedling hardening at 5-7 days before the thinning, stopping the heating for greenhouse during seedling hardening, opening vents of the greenhouse, and controlling the temperature in the greenhouse to be 25-30 DEG C and the relative humidity to be 60-75%; selecting seedlings with 2-4 main leaves and the plant interval being smaller than 5cm for transplantation and thinning.

Description

technical field [0001] The invention relates to the technical field of rhododendron planting and cultivation, in particular to a method for thinning and transplanting rhododendron greenhouse seedlings. Background technique [0002] Rhododendron is a world-renowned precious ornamental flower and one of the top ten famous flowers in my country. Alpine Rhododendron is a large category of Rhododendron in the Rhododendron family. Alpine Rhododendron is mainly distributed in valley broad-leaved forests or hilltop shrubs and grasses at an altitude of 1400-4500m in central and western my country. Its corolla is huge, colorful, beautiful in flower appearance, beautiful in plant shape, evergreen in all seasons, and can withstand low temperatures of -26 ℃. It is a much-loved New Year's Eve flower, and it is also an excellent species for urban and rural greening and beautification, with broad development prospects. However, more than 90% of the alpine rhododendron potted flowers in the...

AI Technical Summary

Problems solved by technology

However, more than 90% of alpine Rhododendron potted flowers in the Chinese market are basically imported from abroad. Compared with imported seedlings, the alpine Rhododendron seedlings provided by domestic companies have a large quality gap, and it is difficult to compete with foreign countries.

[0003] The seeds of Alpine Rhododendron are very small, not only difficult to sow, but also the growth of seedlings is uneven, and it is easy to mutate, so it is not suitable for large-scale reproduction

Although tissue culture has the advantages of high reproduction coefficient and the ability to effectively maintain the excellent traits of the mother plant, its high cost, long cycle, and low survival rate of hardening seedlings limit the rapid promotion of excellent varieties

Cutting propagation is the most commonly used method for rhododendron propagation. Belgian rhododendron and its similar types are mainly propagated by cuttings, but the cutting propagation of alpine rhododendrons is difficult. The rooting rate of conventional cutting propagation is extremely low or does not take root, which cannot meet the growing needs. growing market demand

In view of the shortage of alpine rhododendron seedlings in China, the high cost of tissue culture propagation, and the current situation that does not adapt to the rapid breeding of fine varieties, how to effectively improve the survival rate of alpine rhododendron reproduction, shorten the seedling cycle, and reduce production costs has become an urgent need in the industrialization of alpine rhododendron. solved problem