Guava cutting seedling-raising method

Abstract

The invention provides a guava cutting seedling-raising method comprising the steps of A, cutting slip selection, B, cutting preparation, C, cutting, and D, cutting post treatment. According to the invention, half-lignified softwood branches are adopted as cutting slips. Compared with that adopting hardwood branches, a rooting rate is improved. Before cutting insertion, the lower ends of the cutting slips are soaked by a growth regulator. After the cutting slips are inserted into a seedbed, the growth regulator is added in the medium around the cutting slips. With the effects and influences of the two applications of the growth regulators on the lower ends of the cutting slips, the cutting slip activity and the rooting rate can be greatly improved. Water mist is sprayed intermittently to the cutting slips, such that humidity in the sunshade shed can be effectively maintained, and cutting slip rooting can be promoted. The seedbed is subjected to a heating treatment, such that the influence of diurnal temperature difference on the cutting slips can be prevented, and a normal cutting slip rooting environment is ensured. In summary, the cutting method provided by the invention has the advantages of simple steps, convenient management, short period, and high survival rate. With the method, a large amount of seedlings can be cultivated within a short period of time.

Description

technical field [0001] The invention relates to the field of plant cutting propagation, in particular to a guava cutting seedling raising method. Background technique [0002] Guava belongs to the evergreen small trees of Myrtaceae, 2-5m high. It is native to tropical America and was introduced to China in the 16th to 17th centuries. It is now cultivated in Taiwan, Guangdong, Guangxi and Fujian in southern my country, among which Taiwan and Guangxi and Guangdong are the most common. Ripe fruit is pale yellow, fleshy, juicy, juicy, fragrant and sweet. [0003] Guava likes light, likes warmth, is not cold-resistant, and likes fertile, well-drained soil; guava can be grown by seedlings, ring branches (air layering) and grafting. Since the root system can produce root tillers, it can also be used by branching. The guava has a well-developed root system, is resistant to barrenness, has a very high survival rate and a very fast growth rate. The guava seedlings sown in the same y...

AI Technical Summary

Problems solved by technology

[0004] The conventional method of raising guava seedlings is grafting, but the grafting method has a long cycle and low efficiency, and the resulting fruit has certain variability.

In the prior art, there are also methods of raising seedlings by cuttings, including hard branch cuttings and tender branch cuttings. Since the cuttings of hard branch cuttings are more than 2 years old, the cuttings have been completely lignified, and the rooting effect of cuttings is poor, and the survival rate is low. ; while the cuttings of twig cuttings usually choose semi-lignified branches, which are easier to root and have a higher survival rate