A method for grafting young shoots of excellent rubber trees to raise seedlings

Abstract

The invention belongs to the field of plant cultivation and relates to a rubber superior tree tender shoot grafting, rejuvenizing and seedling growing method. The method includes the steps of budding and rejuvenating cultivation of mother plants, grafting of tender shoots and management after grafting, and technological seedlings in the rejuvenized state are kept and restored through propagation materials. According to the method, vigorous vertical branches 3-13 months old are selected, leaf buds growing in leaf seams serve as budding scions for mother plant rejuvenating cultivation, and bud eyes in leaf axils of lower leaves are large and plump. The budding survival rate is high, and bud slices are large in germination potential and quick in germination. The mother plant tender shoots which are young, strong in vigor and vigorous in growth serve as the scions for rejuvenizing and grafting, and the grafting survival rate can be increased. Besides, the growth amount change speed of new plants can be obviously increased, rejuvenization of Brazil rubber superior tree materials is achieved, and a guarantee is provided for later superior clone testing of rubber tree seedling and smooth improved variety popularization work.

Description

Technical field [0001] The present invention belongs to the field of plant cultivation, and relates to a method for raising seedlings of rubber trees, in particular to a method for grafting young shoots of Brazilian rubber with stress-resistant, high-yield and superior trees. Background technique [0002] Rubber tree is one of the most important woody cash crops and fast-growing high-quality timber species in tropical regions. It has been playing an irreplaceable role in natural rubber production, ecological construction and environmental protection in Southeast Asia and China. Although the economic production period of rubber trees is longer, different rubber tree planting materials have different economic lifespans. Generally speaking, if no dead bark occurs in artificial planting, the seedling tree can pick up rubber for at least 50 years, and even extend to 70~ In the 1980s, budding trees were generally 25 to 30 years old, with 25 years being the majority, and the 30-year cut...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of simple and reasonable, operability strong, rejuvenation effect obviously to the deficiencies of the prior art and high-yield high-yield rubber excellent tree young shoot grafting young seedling raising method, adopt first to rubber excellent tree upright branch Bud grafting and rejuvenation, and then use bud grafting seedlings for grafting young, solve the problems of low bud survival rate and poor plant growth in conventional older excellent trees using bud grafting technology, and can significantly improve the quality of rubber excellent tree materials with serious maturation effects In order to achieve the purpose of significantly improving the survival rate of grafting and promoting plant growth, it provides a guarantee for the smooth identification of excellent clone systems and the promotion of improved varieties in the late stage of rubber tree breeding