Breeding method of high-resistance black millet sterile line

Abstract

The invention discloses a breeding method of a high-resistance black millet sterile line and belongs to the technical field of resistive millet breeding. A millet sterile line, a black millet variety, a drought-resistant variety, a millet blast resistant variety, a leukotrichia resistant variety, a millet kernel smut resistant variety, an herbicide resistant variety and a rust disease resistant variety are used as parents, the high-resistance black millet sterile line having the grain character of black grains, resistant to drought, multiple herbicides and multiple diseases is bred by screening traits hybridization and multiple crossing polymerization, resistance identification, seed coat colors, sterility, outcrossing maturing rate and agricultural yield of multiple generations and is good in resistance, good in sterility, high in outcrossing maturing rate, high in matched hybrid yield and good in planting benefit.

Description

technical field [0001] The invention specifically relates to a method for breeding a high-resistant black millet sterile line, and belongs to the technical field of millet resistance breeding. Background technique [0002] Millet originated in China and is a dominant crop in the north. Millet is rich in nutrients and balanced in various nutrients. It is a food crop with nutritional and health effects. Millet is a traditional drought-resistant crop. It has outstanding characteristics such as drought resistance and barrenness, high water use efficiency, wide adaptability, rich and balanced nutrition, and high forage protein content. As the drought becomes more and more severe, people's dietary structure needs to be adjusted urgently, and animal husbandry continues to develop. Under the circumstances, millet will play an important role in the structural adjustment and industrial development of the planting industry in the future. In the case of increasing drought year by year...

AI Technical Summary

Problems solved by technology

Millet rust is also a major disease in millet production. Rust fungi are obligate parasites. With the large-scale promotion and application of single disease-resistant varieties, it can lead to the emergence of physiological races with stronger pathogenicity, causing the varieties to lose disease resistance. It causes huge economic losses in production, and also makes scientific research and breeding work in a passive state. The key to long-term and effective control of this type of disease is to continuously explore and utilize new resistant source materials and breed new rust-resistant varieties.