Abstract

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Author(s):: ZHANG Zhen-yu1; GUO Tai1; WANG Zhi-xin1; ZHENG Wei1; LI Can-dong1; GUO Mei-ling2; ZHENG Tian-qi1; WU Xiu-hong1; (1.Jiamusi Branch Academy of Heilongjiang Academy of Agricultural Sciences, Jiamusi 154007, China; 2.Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China)

Keywords:: Soybean; New variety; Molecular design breeding; High-oil; High yield; Henong 74

Abstract:: The new soybean variety Henong 74 was bred by Jiamusi Branch Academy of Heilongjiang Academy of Agricultural Sciences through molecular design breeding aiming at high oil, high yield and fine characters. Through the varieties comparison test, varieties regional test and varieties production test in Heilongjiang, the analysis of three-year average quality showed that the protein content was 37.59% and average fat content was 22.23%, suggesting high-oil varieties. The plant was tall and luxuriant with good branching. The seed of this variety were round, the seed coat was yellow and glossy, and the hilum was yellow, with the 100-seed weight of around 19.6 g. After inoculation test for three years, the results demonstrated moderate resistance to gray leaf spot. The growing days in the adaptive area was around 120 d, and the active accumulated temperature needed to be at around 2 450 ℃. This variety was bred through the combination of biotechnology and conventional breeding, which expanded the approaches of soybean breeding, broke through the restriction of resources and environment, and improved breeding efficiency, so it could promote the innovation of crop molecular breeding.