Breeding method for sweet glutinous maize self-bred line

Abstract

The invention relates to a breeding method for a sweet glutinous maize self-bred line, which comprises the following steps of: 1) hybridizing Nannongziyunuo No.1 serving as purple glutinous maize and Jingtian No.3 serving as ultra-sweet maize to obtain hybridized ears; 2) planting purple seeds, and backcrossing by using the Nannongziyunuo No.1 as a male parent to obtain backcrossed ears; 3) planting purple glutinous seeds, performing bagging selfing, namely selecting and remaining the ears of ultra-sweet seeds, picking all purple glutinous seeds of the ears out, and performing single-grain sowing and single-plant bagging selfing; and 4) selecting and remaining the ears of the ultra-sweet seeds, picking white ultra-sweet seeds of the ears, sowing, performing 3 to 4 generations of continuous selfing by combining stress resistance and quality characters and selecting excellent individual plants to breed a stable sweet glutinous maize self-bred line TN-01. By the breeding method, the advantages of high quality, high stress resistance and high adaptability of the bred hybrid seeds are ensured, and the bred self-bred line can hybridize the glutinous maize and the ultra-sweet maize.

Description

technical field [0001] The invention relates to a method for breeding sweet and waxy corn inbred lines, and belongs to the technical field of breeding new agricultural varieties. Background technique [0002] Breeding of high-quality sweet waxy corn inbred lines is the basis of new varieties. With the improvement of people's living standards and the strengthening of health care awareness, new requirements have been put forward for the quality and commerciality of sweet waxy corn, especially sweetened waxy corn (the waxy and sweet seeds on the ears are arranged along with each other) and super sweet corn are becoming more and more popular. The more popular it is, the more cultivated area is expanding year by year, but there is a shortage of good varieties, so it is particularly important to breed inbred lines that can be formulated into high-quality sweet waxy and super-sweet corn. At present, the inbred lines obtained by conventional breeding methods for waxy corn materia...

AI Technical Summary

Problems solved by technology

At present, the inbred lines obtained by conventional breeding methods for waxy corn materials cannot produce sweetened waxy corn, nor can they be used to prepare hybrids with super-sweet corn inbred lines, and cannot share the advantages of waxy and sweet mutation types.