Cyclobalanopsis gilva seedling cutting method

Abstract

The invention relates to plant breeding methods, in particular to a cyclobalanopsis gilva seedling cutting method. The method includes the following steps that a scion is collected, and the scion is made to be a cutting slip with the length being 8-10 cm, wherein three leaves on the top of the cutting slip are kept, and the 2 / 5 area of each leaf is reserved; an upper notch of the cutting slip is a flat opening, the scion is treated by hormones, the scion is placed in a plug tray in a cuttage mode, sufficient watering is conducted, a sunshade net is built over a cutting bed, the temperature is controlled to be 13-28 DEG C, the relative humidity is kept more than 80%, and water is sprayed once or twice or three times; carbendazim is sprayed weekly. According to the cyclobalanopsis gilva seedling cutting method, cuttage vegetative propagation is adopted, the good characteristic of a parent body can be kept, the rooting percentage of cyclobalanopsis gilva reaches up to 80.4%, the average root length is 3.52 cm, and the average rooting number is 5.55. The survival rate of good seedlings is increased on the premise that the production cycle is shortened, the breeding speed is high, the invested cost is low, operation is easy and convenient, the character is stable, and popularization and large-scale afforestation of the good cyclobalanopsis gilva seedlings can be facilitated.

Description

technical field [0001] The invention relates to a method for plant breeding, in particular to a method for growing seedlings by cuttings of Chiselia chinensis. Background technique [0002] Cyclobalanopsis gilva, also known as red peony, red peony, Hunan chrysanthemum, etc., is a precious and endangered tree species in my country. With the rapid development of China's economy in recent years, the market demand for precious timber tree species is increasing. The forest stands of Chipi qinggang were seriously damaged, and the natural forest resources decreased sharply. In order to carry out large-scale afforestation and popularization of Chipi Qinggang as soon as possible, it is urgent to carry out large-scale seedling cultivation for afforestation to meet market demand. [0003] At present, the propagation technique of Chipi Qinggang is mainly by sowing and propagating. The key technology of reproduction is to store in sand before sowing, and then sow and raise seedlings a...

AI Technical Summary

Problems solved by technology

[0004] Studies have found that the seeds of Chissicola chinensis are recalcitrant seeds. In order to improve their germination rate, they must be accelerated by sand storage under specific conditions. Too high or too low water content in the sand storage process will affect the water balance in the seeds and even die, too wet It will cause rotten seeds, resulting in a significant decrease in the germination rate of Chiba

The sowing period is also relatively strict, and the timing must be seized. Sowing should be carried out when the germ of the seed is just emerging. If the sowing time is too late, the germ is too long, and it is easy to break when sowing, thereby affecting the survival rate of seedlings.

In short, A. chinensis is propagated by sowing. Its germination time is very long, the germination rate is low, and it is difficult to preserve the excellent traits of the female parent. As a result, the supply of excellent seedlings of A. chinensis cannot meet the requirements of the forest market, resulting in a contradiction between supply and demand.