Method for improving top-grafting survival rate of camellia trees

Abstract

The invention discloses a method for improving the top-grafting survival rate of camellia trees. The method includes the steps of grafting time selection, rootstock selection, rootstock treatment, scion collection, grafting, first rootstock binding, second rootstock binding and fostering and fertilizing management. On sunny days from May to July every year, robust camellia tree branches on the camellia trees aged 20 to 30 years are selected as rootstocks; on the basis of a conventional bark-pulling cut-grafting method, it is unnecessary to keep vegetative branches and shading branches, film belts are used for binding the rootstocks from bottom to top one ring after another ring without gaps, and then the rootstocks are covered with moisturizing bags and shading objects; when scion buds survive, the moisturizing bags and the shading objects are removed, and then film belts are used for binding the rootstocks; after grafting, management is conducted in combination with a conventional method. By means of the method, rootstock germination can be effectively inhibited, it is prevented that the rootstocks are subjected to bark cracks and death due to sunburn and water loss of the rootstocks, the costs of management and protection after grafting and crown changing of the camellia trees are effectively reduced, and recovery and formation of crowns of the camellia trees after grafting can be quickened.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, and relates to a method for improving the survival rate of high-position grafting of large Camellia oleifera trees. Background technique [0002] Camellia ( Camellia oleifera Abel.), also known as tea seed tree and camellia oleifera, is an oil species with high cultivation economic value in the camellia family Theaceae, and is also a woody edible oil plant unique to southern my country. It is also known as oil palm, olive and coconut It is the world's four largest woody oil tree species. Camellia oleifera's main product, tea oil, contains a variety of vitamins and trace elements beneficial to the human body, and its unsaturated fatty acid content reaches more than 90%. It is a natural, safe and healthy high-quality characteristic woody high-nutrition edible oil. Known as "Oriental olive oil". [0003] In recent years, the country and autonomous regions have attached great importance ...