Abstract:

Zhenongyou 12 is a new conventional rape variety with high oil content, disease resistance and cold resistance, bred by Zhejiang Wuwangnong Seed Industry Co., Ltd. It passed the registration of non-main crop varieties with registration number GPD rapeseed (2023) 330235 and is suitable for planting in autumn and winter in the winter rape areas of Zhejiang, Jiangsu, Anhui and Shanghai in the downstream areas of the Yangtze River. This variety was systematically bred through hybrid combination testing and generation material separation. Three widely adapted and high-quality conventional rape varieties were used as basic materials to form a hybrid combination, which aggregated excellent traits such as disease resistance, cold tolerance, and high oil content after years pedigree method. The average yield of this variety in the multi-point adaptability test was 2 813.5 kg·hm^-2, 2.7% higher than the control; the oil content was 49.71%, the glucosinolate content was 21.48 μmol·g^-1, and the erucic acid content was 0%.

Key words: rape, high oil content, disease resistance, cold tolerance, Zhenongyou 12, breeding