Breeding method for black and white sweet glutinous hybrid maize

Abstract

The invention discloses a breeding method for black and white sweet glutinous hybrid maize. The breeding method for black and white sweet glutinous hybrid maize comprises the steps of selecting ultra-sweet maize, glutinous maize, a common high yield multi-resistance maize-inbred line and the like from different regions to be equivalently mixed, openly pollinating the maize, establishing a basic group A, selecting black glutinous maize germplasm from different regions to be equivalently mixed, openly pollinating the maize, and establishing a basic group B; then carrying out recurrent selection to the properties of seeds of the maize to respectively form a white sweet glutinous maize recurrent selection group A and a black sweet glutinous maize recurrent selection group B, obtaining a serious inbred line through multi-generation inbreeding, and screening a white sweet glutinous maize inbred line 4587 and a black sweet glutinous maize inbred line 3303 through combination ability measurement and cross combination quality identification to obtain 4587 X black 3303 hybrid. The breeding method can ensure both the glutinous and sweet genes of a parent inbred line and the hybrid of the parent inbred line, and also ensure the appearance quality, the favorable edible quality, the stability and the consistency of the hybrid. Moreover, the seeds of the maize are black and white.

Description

1. Technical field [0001] The invention relates to a breeding method of black-and-white double-color sweet-waxy hybrid corn. 2. Background technology [0002] Since the beginning of this century, the quality of life of our people has been continuously improved, and they are more and more particular about the taste and nutritional and health care value of food. In order to meet people's ever-increasing demand for high-quality and diversified food and improve people's quality of life and eating habits, research on sweet waxy corn breeding and development of new varieties have also been rapidly developed. Domestic sweet waxy corn breeding started in the mid-1980s, 20-30 years later than abroad. However, since fresh waxy corn is used as raw material for food processing, vegetables, leisure convenience food, etc., with the development of social economy and the adjustment of planting industry structure, the production area has gradually increased in recent years, with a strong up...

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Problems solved by technology

Several studies have shown that endosperm mutant genes have a significant effect on seed coat thickness (Helm et al., 1970, Tracy and Schmidt et al., 1987), but genetic control of seed coat thickness has not been reported

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