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Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (30): 13-18.doi: 10.11924/j.issn.1000-6850.casb20190900686

Special Issue: 小麦

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Screening of Wheat Landraces Germplasm for Wheat Quality Improvement

Yang Lijuan(), Wang Shikun, Sheng Kun, Fu Liang, Dong Yun, Jiang Zhikai()   

  1. Xinxiang Academy of Agricultural Sciences, Xinxiang Henan 453000
  • Received:2019-09-25 Revised:2019-10-28 Online:2020-10-25 Published:2020-10-16
  • Contact: Jiang Zhikai E-mail:tansuozhongguo@163.com;13598623179@126.com

Abstract:

To select excellent wheat landraces germplasm that could be used to improve the quality of wheat, 212 wheat landraces were used as materials, Vp1B3 molecular marker and spraying in field were used to identify the resistance to spike germination. Hardness index method was used to measure hardness, and some agronomic characters were investigated. The results showed that among the 212 landraces, the genotypes of Vp-1Ba (susceptible to ear germination), Vp-1Bb (resistant to ear germination) and Vp-1Bc (resistant to ear germination) were 70.28%, 6.16% and 23.70%, respectively, and Vp-1Ba was the main genotype. There was no significant difference among the three genotypes. The spike germination rate of the 212 landraces ranged from 7.79% to 28.56%, with an average of 15.28%. The average hardness index (HI) was 71.22. The average plant height of the landraces reached 113.46 cm. The resistance to powdery mildew was rich in variation among the landraces and 3 landraces were immune to powdery mildew. The average grains per spike of landraces were 28.33 and the average 1000-grain weight was 30.96 g. A total of 12 landraces were selected including ‘Jinbaoyin’, ‘Yumai1’, ‘Dahongmang2’ and et al, they could be used for breeding targets of resistance to spike germination, hard grain, suitable plant height, resistance to powdery mildew and high yield. This study lays a foundation for further cultivation of high-quality wheat.

Key words: wheat, landrace, germplasm, Vp1B3, hardness index

CLC Number: