Full-leaf grafting method for small rootstocks of camellia reticulata

Abstract

The invention discloses a full-leaf grafting method for small rootstocks of camellia reticulata, and belongs to the technical field of gardening management. The method comprises the following steps ofrootstock seedling selection, rootstock cutting, scion selection, rootstock cutting, scion treatment, grafting, bundling, bagging, environment control, bag uncovering and strip detaching. According to the method, an inarching technology and a crimping technology are combined together, branches which have 5-6 whole leaves and are annual woody or semi-lignified are adopted as scions, and the scionsare grafted on biennial (0.5-1.0 cm) small rootstocks, so that a new camellia reticulata plant is rapidly bred. The method has the advantages of simple operation, high survival rate (85-90%) and fulltree shape; under the conditions of infrastructure, the camellia reticulata can be propagated all the year round, and the method is the best scheme for mass propagation of the camellia reticulata; grafting is performed in July to August, flowering can be performed at the end of the year as soon as possible, and flowering of camellia reticulata grafted in the same year is realized.

Description

technical field [0001] The invention belongs to the technical field of horticultural management, and in particular relates to a whole-leaf grafting method of small stock of Yunnan camellia. Background technique [0002] Camellia yunnanensis is a plant of the genus Camellia in the family Theaceae. It is native to Yunnan. It has a tall tree, thick shade, broad leaves, and huge flowers. It is one of the traditional Chinese flowers and trees, the first of the eight famous flowers in Yunnan, and the city flower of Kunming. Yunnan camellia has been cultivated for more than 1,000 years. Due to the difficulty in rooting Yunnan Camellia, and in order to maintain its ornamental characteristics, the asexual reproduction method of grafting is currently used for cultivation. Multi-generation grafting of Yunnan Camellia will not cause the species to degenerate. [0003] The so-called grafting is one of the artificial propagation methods of plants, which is carried out by using the healin...

AI Technical Summary

Problems solved by technology

However, the grafting method is relatively complicated to operate, and it takes a long time for grafting to survive. The management and maintenance after grafting is more troublesome, and the consumption of propagation materials is large, and the efficiency is low, which is not conducive to large-scale mass production.

For example: 1. Limited by time, grafting can only be done from the end of April to the end of July. 2. Restricted by the rootstock, the thickness of the rootstock and scion must be equal. 3. Restricted by the place, the planting container of the rootstock should be supported by bamboo poles or hung on a wall. Around the mother tree where the scion is scioned, 4. The cumbersome breeding and management will increase the cost of management and maintenance, and the rootstock planting container is small, and a little negligence can easily cause the rootstock to dry out and die

The disadvantages of small stock budding are that the reproduced plants are small, the wound healing is slow, and the survival rate is low, etc., which is not suitable for the large-scale propagation of camellia seedlings

[0006] In recent years, Chinese horticultural workers have introduced crimping technology from Japan. The crimping technology requires the selection of rootstocks with a diameter of more than 2cm and a long breeding cycle, which has many restrictions.