Selective breeding method for black glutinous maize inbred line

Abstract

The invention discloses a selective breeding method for a black glutinous maize inbred line, which includes the following steps: (1) Jinnuo No. 8 is chosen as female parent and Suyunuo No. 5 is chosen as male parent for hybridization, so that hybrid ears are obtained; (2) after the seeds of the hybrid ears are planted, Jinnuo No. 8 is used as the male parent for backcross, so that backcrossed ears are obtained; (3) after being planted, the seeds of the backcrossed ears are bagged to be inbred, ears with black cobs and seeds are chosen, each ear is separately threshed, the seeds of each ear are planted in a row, and thereby different ear rows are formed; all the individual plants in each ear row are bagged to be inbred, so that inbred ears are obtained, and the inbred ears in the different ear rows are separately harvested; (4) the ear rows in which both the cobs and seeds of all the inbred ears are black are chosen to be left, the seeds of the inbred ears are planted, and according to stress resistance and qualitative character, the excellent individual plants are chosen to be continuously inbred for three generations, so that the black glutinous maize inbred line is obtained. The black glutinous maize inbred line has the advantages of rich nutrition, unique taste, thin pericarp, high glutinousness, high stress resistance, wide applicability and excellent agronomic character.

Description

technical field [0001] The invention relates to a method for breeding black waxy corn inbred lines, and belongs to the technical field of breeding of new agricultural varieties. Background technique [0002] With the improvement of people's living standards and the strengthening of health awareness, people have put forward new demands on the types, nutritional ingredients, appearance, color and health functions of fresh corn products. Black glutinous corn has black grains, rich in nutrients such as selenium (Se) and anthocyanins, which are essential elements for the human body, and is suitable for fresh-keeping processing and can be supplied to the market year-round. The consumption demand is rising rapidly, resulting in the expansion of the cultivation area year by year. , but the high-quality varieties are relatively vacant, so it is particularly important to breed inbred lines that can be formulated into black waxy corn hybrids with high quality, high yield, good stress r...

AI Technical Summary

Problems solved by technology

Black glutinous corn has black grains and is rich in nutrients such as selenium (Se) and anthocyanins, which are essential elements for the human body, and is suitable for fresh-keeping processing and can be supplied to the market year-round. The consumer demand is rising rapidly, resulting in the expansion of the cultivation area year by year. , but the high-quality varieties are relatively vacant, so it is particularly important to breed inbred lines that can be formulated into black waxy corn hybrids with high quality, high yield, good stress resistance, and wide adaptability. Germplasm innovation and resource improvement are used to breed high-quality black waxy corn inbred lines, and then breed new high-quality black waxy corn varieties to meet market demand