Method for semi-lignified twig cutting breeding of Aquilaria sinensis

Abstract

The invention discloses a method for semi-lignified twig cutting breeding of Aquilaria sinensis, which comprises: collecting wide high-quality Aquilaria sinensis seeds, sowing the seeds for raising seedlings and building a cutting orchard with high-quality seedlings; in the following year, trimming the seedlings in the cutting orchard at the place which is more than or equal to 15 centimeters away from the ground, and applying 6-BA on the trimmed seeding stems for promoting the germination of twigs; collecting materials when the twigs grow to a semi-lignified state by cutting the twigs to 10 to 15 centimeters with three top leaves left and each leaf having 2 / 5 leaf area; cutting the cuttingwood with a flat cut, obliquely cutting the lower end of the cuttingwood at a position as close to leaf segment as possible; cleaning the cutting wood, disinfecting, plugging the lower part of the cutting wood into prepared plant growth regulator treatment solution, inserting the cutting wood into a medium, performing post-cuttage management and obtaining Aquilaria sinensis seedlings. The method is low in cost, ensures high survival rate, high seeding quality and quick propagation, relieves seed shortage situation, keeps the excellent hereditary characters of the high-quality trees, is easy to promote and has a promising development prospect.

Description

Technical field [0001] The invention relates to a method for growing seedlings by cutting agarwood semi-lignified twigs, and belongs to the technical field of plant asexual reproduction. Background technique [0002] Aquilaria sinensis (Lour.) Gilg is a perennial tropical and subtropical evergreen tree of the genus Aquilaria in the Aquilaria family. Agarwood is a precious medicinal plant unique to my country and an important plant resource for the production of agarwood in my country. It is listed as a national endangered tertiary protected plant and a national secondary key wild protected plant. In recent years, due to the low natural reproduction rate of Agarwood, insect pests and man-made deforestation, the wild resources are severely scarce. It is now only scattered in Hainan, Guangdong, Guangxi, Fujian and Taiwan provinces. Agarwood wild superior trees have low seed setting rate, it is not easy to obtain a large number of high-quality seeds, and the seeds are not suitable f...

AI Technical Summary

Problems solved by technology

In recent years, the Tropical Forestry Research Institute of the Chinese Academy of Forestry, with the support of the National "Eleventh Five-Year" Science and Technology Support Project, has visited the Yunnan Academy of Forestry, the Hainan Provincial Forestry Institute and some seedling management companies to carry out cuttings of Agarwood. Seedling breeding, carried out relevant research, published a research brief (the effect of different plant growth regulators on the rooting of A. sinensis cuttings, Forestry Science Research, 2010, 23(2): 278-282), but still faced with low rooting rate and high growth rate. The problem of poor seedling quality

The materials used in the national patent application with the application number 200810100568.5 and the name "Method for Propagation of Baimuxiang Cuttage" and the cutting time (all year round), after repeated practice, the rooting rate of cuttings is low, and the rooting rate of cuttings in different months is low. There is a large difference in the cutting rate; the required cutting substrate is mainly moss, and the cost is high. In addition, it is required to spray the rooting accelerator within one month after the cutting, which increases the cost significantly; in terms of the survival of the cutting seedlings, only the rooting rate index is used. Large restrictions, unable to fully measure the rooting quality of cutting seedlings

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