Abstract:
In order to promote the high-yield and high-quality dwarf sorghum variety Keza 17, which is suitable for mechanized cultivation in Heilongjiang Province, this article introduces its breeding process, characteristic characteristics, yield performance, cultivation techniques, and key points of seed production technology. The mixed grain team of Keshan Branch of Heilongjiang Academy of Agricultural Sciences used the early maturing male sterile line Ke26A with a 100% sterility rate as the female parent and the mid early maturing dwarf restoring line Kehui 46 as the male parent. Through hybrid testing and breeding, a new sorghum variety Keza 17 with dwarf stem for brewing, early maturity, and high yield was developed. Participated in the regional test of sorghum in Heilongjiang Province from 2018 to 2019, with an average yield of 7 668.09 kg · ha
-1, an increase of 11.13% compared to the control variety Suiza 7. In 2021, a new variety of sorghum was registered with the registration number GPD Sorghum(2021) 230014. Keza 17 has a plant height of 92.05 cm, a spike length of 26.30 cm, and 12 leaves. Its excellent characteristics fully meet the overall requirements of the current planting area for the characteristics of brewing sorghum varieties. This variety is suitable for planting in the second, third, and fourth temperate zones in the northern high-altitude areas of Heilongjiang Province.