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Journal of Agriculture ›› 2025, Vol. 15 ›› Issue (3): 7-12.doi: 10.11923/j.issn.2095-4050.cjas2024-0075

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A New Rape Variety 'Hanyou23' with High Yield and High Oil-content and Multi Resistance: Breeding and Cultivation Techniques

ZHANG Yanxia1(), SHEN Guopeng1(), SUN Xiaomin1, XING Lihong1, QU Liying1, XUE Yan1, WANG Jiawei2   

  1. 1 Hanzhong Agricultural Technology Extension and Training Center, Hanzhong Shaanxi 723000
    2 Nanzheng District Agricultural Technology Extension and Training Center, Nanzheng Shaanxi 723100
  • Received:2024-04-23 Revised:2024-11-11 Online:2025-03-20 Published:2025-03-18

Abstract:

To breed the double-low (low erucic acid and low glucosinolates) rapeseed variety with the double-high of yield and oil-content, strong stress tolerance and wide adaptability, we used cytoplasmic male line 'Han 3A' as female parent to cross with the restorer line '475R', after selection and identification, we obtained a variety 'Hanyou 23' with high oil content and high yield and multi resistance in Brassica napus L. Its average yield in comparative experiment of new rapeseed varieties in the Yangtze River Basin (the upper, middle and lower reaches) for two consecutive years (2020-2022) was 3167.8 kg/hm2, the erucic acid content was 0.105%, the glucosinolate content was 17.48 μmol/g, and the oil content was 47.57%. This variety had resistance to sclerotinia sclerotiorum and viral diseases, strong cold resistance and good lodging resistance. The variety was registered by the Ministry of Agriculture and Rural Affairs in 2024 with the registration number GPD rape (2024) 610234.‘Hanyou 23’was a hybrid Brassica napus variety with high yield and superior quality, strong stress tolerance, wide adaptability and suitability for agriculture mechanization. This paper provided the basis for its popularization and application by introducing the breeding process, characteristics and high-yield cultivation technology.

Key words: high yield, superior quality, disease resistance, lodging resistance, Brassica napus, breed selection, 'Hanyou 23'