Scientific and effective citrus breeding method

Abstract

The invention discloses a scientific and effective citrus breeding method, by which transplantation is convenient, the transplanting survival rate is high, the rejuvenation period does not exist after transplantation and the growth period of citrus can be greatly shortened. The scientific and effective citrus breeding method comprises a seedling cultivating step, a grafting step, a field management step and an outplanting step, wherein the seedling cultivating step comprises rootstock seedling cultivation and scion-providing female parent tree cultivation; the rootstock seedling cultivation comprises seed treatment, sowing and transplanting cultivation; the sowing step comprises nutrient soil preparation, seedbed sowing and seedbed management; the transplanting cultivation is as follows: rootstock seedlings with the heights of 15 cm or above are directly transplanted into a seedling cultivating container with nutrient soil; the scion-providing female parent tree cultivation is as follows: detoxified Yongchun ponkan seedlings are fixedly planted in a net room, and in the second year after fixed planting, scions are cut; the grafting step is as follows: the scions are grafted on the transplanted rootstock seedlings of which the trunks are 35 cm in height or higher and the diameters at positions, 10 cm above the ground, of the trunks are 0.6-0.8 cm, the grafting positions are 10 cm above the root parts of the rootstock seedlings, and during grafting, grafting tools and grafting personnel are needed to be sterilized.

Description

[0001] Technical field: [0002] The invention relates to a plant cultivation method, in particular to a scientific and effective citrus breeding method. [0003] Background technique: [0004] Citrus, evergreen small trees or shrubs, about 2m high, branchlets are thin, glabrous, usually prickly, leaves ovate-lanceolate, 4-8cm long, yellow-white flowers, solitary or clustered leaf axils, oblate fruit , 5-7cm in diameter, orange-yellow or orange-red, thin and easy to peel off, blooms in spring, ripens from October to December, prefers warm and humid climate, slightly stronger cold resistance than pomelo, lime, and sweet orange. Citrus belongs to the genus Citrus of Rutaceae, which is a tropical and subtropical evergreen fruit tree (except Hovenia trifoliata). There are 3 genera used for economic cultivation: Hovenia citrifolia, Citrus and Kumquat. The citrus cultivated in my country and other countries in the world is mainly of the genus Citrus. [0005] The existing methods o...

AI Technical Summary

Problems solved by technology

[0005] The existing methods of breeding citrus seedlings include seedlings, layering, cutting and grafting, etc. At present, the grafting method is the best and most common. The grafted seedlings of citrus are composed of scions and stock seedlings. The grafted seedlings of citrus are all Bare-rooted seedlings, the roots of this kind of bare-rooted seedlings are in direct contact with the soil when they are out of the nursery, and the roots are likely to be damaged during excavation, and only a small amount of original soil can be brought with them when they are unearthed, so that the transplantation of bare-rooted seedlings can only be carried out in spring. It cannot be transplanted all the year round, and it brings inconvenience to the transplanting operation; at the same time, when transplanting, the roots need to be stepped on after covering the roots with soil, which undoubtedly damages the roots again, and the seedlings do not grow on the soil of the original place of growth after transplanting, making bare Root seedlings have a long slow seedling period after transplantation, and the survival rate is relatively low