Hardwood-cuttage seedling culture method of Cyclocarya paliurus

Abstract

The invention provides a hardwood-cuttage seedling culture method of Cyclocarya paliurus and aims to fully utilize cutting nursery resources and culture a large number of seedlings in a short period of time. The method includes the steps of firstly, in the first ten days and the middle ten days of December, selecting lignified Cyclocarya paliurus seed branches to produce scions; secondly, performing sand storage on the scions; thirdly, in the first ten days of March of the next year, processing the scions after the sand storage with auxin twice; fourthly, inserting the scions obtained after the third step into a seedling bed; fifthly, performing management after the insertion. The method has the advantages that the problems that existing hardwood cuttage of the Cyclocarya paliurus is difficult in callus formation and organ differentiation, long in rooting time, low in rooting rate and the like can be solved, and root primordium formation time is shortened; in a specific implementation process, the scions start rooting in 20 days, a complete root system can be formed in 28 days, root number reaches more than 6, average rooting rate is 89.5%, and transplanting survival rate reaches 97.6%.

Description

technical field [0001] The invention belongs to the technical field of forestry, and in particular relates to a method for growing seedlings of Cyclocarya paliurus hard branches. Background technique [0002] Cylocarya paliurus (Batal.) Iljinskaja, also known as money tree, green money plum, hemp willow, etc., is a plant of the genus Cylocarya paliurus in the family Juglandaceae. It is a rare single-species plant unique to my country and one of the endangered plants under national key protection. 1. It is mainly distributed in the subtropical region south of the Yangtze River in my country. Studies in recent years have shown that its leaves contain polysaccharides, triterpenes, saponins, flavonoids, amino acids, vitamins and other important medicinal ingredients, as well as various trace elements such as germanium, selenium, chromium, vanadium, zinc, iron, calcium, etc. The effect of preventing and treating modern chronic diseases such as cardiovascular disease and diabetes....

AI Technical Summary

Problems solved by technology

In summer, the rooting rate has been as high as 92% by using the cuttages of the current year. However, the cuttages of Cyclocarya paliurus are concentrated from mid-May to mid-July, and the cuttings of the mother trees need to be cut from January to February of the current year dry treatment, resulting in a great waste of branches that grew after July of the previous year

According to the literature search, it is found that the highest rooting rate is only 42.2% when using cutting hardwood cuttings, and the rooting time is more than 60 days, so it has great limitations.