Method for improving breeding quality of dalbergia odorifera cuttings

Abstract

The invention discloses a method for improving breeding quality of dalbergia odorifera cuttings. In a period from the last ten-day of February to the last ten-day of March, a large hole is dug for an annual-growth seedling, organic fertilizer serving as base fertilizer is applied to the seedling, the seedling is planted to be a stock plant, topdressing is performed, lateral branches are reasonably trimmed, stems are cut and sprouting is promoted in a period from the last ten-day of February to the last ten-day of March of a second year, the lateral branches and sprouted branches are appropriately trimmed, two or three thick, strong and evenly-distributed sprouted branches are retained, the topdressing is performed in July to August, a main stem and the sprouted branches are collected and serve as the cuttings in the period from the last ten-day of February to the last ten-day of March, the cuttings are treated through medicament and then are inserted into a non-woven fabric mesh bag provided with a matrix, a plastic film and a shading mesh are covered for seedling cultivation, and high-quality dalbergia odorifera cuttings are obtained. By means of the method for improving the breeding quality of the dalbergia odorifera cuttings, the stock plant is convenient to manage, the quality of cutting strips is easy to control, propagation coefficient is large, cottage time is strictly mastered, the cuttings are thick and strong and good in quality, the rooting time and out-planting time are effectively shortened, the cottage survival rate reaches to 80.3-92.5%, and the economic benefit is good.

Description

technical field [0001] The invention belongs to the technical field of asexual and rapid propagation of plants, and relates to a method for improving the breeding quality of Dalbergia japonica cuttings. Background technique [0002] Dalbergia odorifera Chenn (Dalbergia odorifera Chenn) is a precious wood species and precious Chinese medicinal material of Dalbergia genus Papilionaceae. Among the 34 species of mahogany in 5 genera and 8 categories according to my country’s national standard, it ranks second only to sandalwood, red sandalwood and red sandalwood. Suanzhimu is the most common and precious mahogany tree species in my country. Its material is tight and hard, the heartwood is obvious, reddish brown to dark brown, shiny, beautiful texture, air-dry density 0.94g / cm 3 After drying, no deformation, no cracking, fine and uniform structure, corrosion resistance and moisture resistance, special fragrance, and the fragrance lasts forever. It is a valuable wood for making hi...

AI Technical Summary

Problems solved by technology

[0003] Dalbergia dalbergia has a large amount of seeds and a high seed germination rate. Sowing seedlings is the main propagation method at present, but the seedlings are afforestation and seedlings are highly differentiated and the forest is not neat. It is immature and has not yet been popularized and applied. At present, only Liu Dechao and Xu Yang's "Experimental Research on the Technology of Cutting Seedlings of Dalbergia Dalbergia Containers" (Forestry Resource Management, Issue 3, June 2009) was published on November 11, 2009. 2-year-old mother trees were selected as cuttings with a diameter of 0.6 to 1.3 cm, and the rooting rate was investigated 80 days after cutting; Shi Fujun, Yu Jianmei, etc. "Research on Cutting Propagation Technology of Dalbergia Dalbergia" (Guangdong Agricultural Science, No. 1, 2011) is From October to February, 4-year-old mother trees are selected for cuttings with a diameter of 0.8 cm or more. The branches are used as cuttings, and the rooting rate is investigated 180 days after cutting; Zeng Hongcai and Zeng Hecai's "Dalbergia Dalbergia seedling raising technology" is to select 34-year-old mother trees or 1-year-old seedlings from December to January to pick sprouts with a diameter of 0.8-1.0 cm or more For cuttings, investigate the rooting rate 180 days after cutting; Li Qingchun's "Cultivation and Planting Techniques of Dalbergia Dalbergia" is to select 34-year-old mother trees or 1-year-old seedlings from December to January to pick sprouts with a diameter of more than 0.8cm for cuttings , these methods have a lot of randomness in ear harvesting time. Branches are collected from existing large trees as cuttings, without mother plant cultivation, let alone cutting to promote germination, the selected cuttings are generally thin, the source of cuttings is unstable, the quality is poor, and the root Slow, the seedlings stay in the bed for a long time, the management is time-consuming, and the survival rate of the cuttings is between 15.0 and 86.7%, which fluctuates greatly