Method for quickly raising clonal seedlings of teakwood by light matrix tray

Abstract

The invention discloses a method for quickly raising clonal seedlings of teakwood by a light matrix tray. The method comprises the steps of taking teakwood rootless tissue culture bottle seedlings as propagating materials, selecting a seedling raising light matrix and quickly culturing by using the seedling raising tray instead of a seedling raising bag. The quick industrialized seedling raising effect of the light matrix and the seedling raising tray is achieved, the seedling raising and forest planting costs are saved, the seedling raising and forest planting efficiency is improved, and the transportation cost and the labor intensity of forest planting workers are reduced. The teakwood rootless seedlings start to grow roots seven days after transplantation; and compared with the conventional technology of raising the teakwood seedlings by a nutrient soil bag, the rooting time is three days in advance and is centralized, and the root survival rate is increased to be 95.3% from 87.6%. The teakwood rootless tissue culture seedlings are adopted to be transplanted, so that the propagation coefficient is high, the hereditary characters of the excellent clone of the teakwood are maintained, the seedling raising time is shorter, the seedlings transplanted for three to four months can leave from a nursery and are used for forest planting, and a large amount of well-bred strong seedlings can be quickly provided for the market.

Description

technical field [0001] The invention belongs to the technical field of arbor cultivation and propagation, and in particular relates to a method for rapidly growing seedlings in light-substrate plugs of teak clones. Background technique [0002] Teak (Tectona grandis L.f.) is a tall tree of the genus Tectona in the Verbenaceae family. It is naturally distributed in southern and central India, northern Thailand, Myanmar and Laos at 9° to 26° north latitude and 73° to 104° east longitude. It is a famous tropical precious timber tree species, known as the "King of Ten Thousand Woods". Its heartwood is tough and durable, with a dense structure and beautiful texture. Timber. Teak has the characteristics of fast growth, excellent material, wide application and high return on investment. It is widely planted in tropical and subtropical regions. It is one of the four tree species with the largest plantation area in the world, and it is also the afforestation tree species with the hi...

AI Technical Summary

Problems solved by technology

However, at present, the development of commercial teak forests in my country is based on seed seedlings and excellent tissue-cultured clonal seedlings. Nutrient bag seedlings are often used as the matrix of yellow core soil, which relies on manual bagging, which is labor-intensive and inefficient, and each plant weighs 0.50~0.75kg, the transportation cost is high in large-scale afforestation, especially in the afforestation of tropical and subtropical mountainous areas in my country. Due to the weight of seedlings in nutrition bags, it is difficult for workers to pick seedlings up the mountain, and the quantity is small and the efficiency is low

However, it usually takes 8 to 12 months to cultivate young seedlings into cut dry seedlings, and the main roots, lateral roots and fibrous roots need to be pruned to raise the seedlings. Slow growth, reduced cold and wind resistance

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