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Journal of Agriculture ›› 2025, Vol. 15 ›› Issue (2): 8-13.doi: 10.11923/j.issn.2095-4050.cjas2024-0002

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Study on Resistance of Wheat Varieties to Wheat Black Point Kernel in Huang-Huai Wheat Area

LI Xinhua1(), ZHANG Ke2, OU Xingqi1(), WANG Zijuan3, OU Yangjuan3, ZHANG Shuailei3   

  1. 1 Department of Agriculture, Henan Institute of Science and technology, Xinxiang Henan 453003
    2 Luoyang Academy of Agriculture and Forestry Sciences, Luoyang Henan 471023
    3 Xinxiang Nongle Seed Industry Co., Ltd., Xinxiang Henan 453002
  • Received:2024-01-12 Revised:2024-03-27 Online:2025-02-20 Published:2025-02-18

Abstract:

The aim was to understand the incidence and resistance performance of black point disease in major cultivated wheat varieties in the Huang-Huai wheat region. A total of 33 wheat varieties from the region were collected, and the rates of black point kernel in grains and diseased index were statistically analyzed for each variety. Disease index was also analyzed, and the resistance to black point disease was categorized. Significant differences in the rate of black point kernel were observed among the tested wheat varieties (lines), with the rate of black point kernel ranging from 6.17% to 63.17%. Varieties such as ‘Bainong 607’, ‘Bainong 207’, ‘Shannong 17’, ‘Shannong 116’, ‘Weilong 169’, and ‘Xinmai 45’ had low rates of black point kernel in grains and a light disease index, all were classified as having a low susceptibility to wheat black point disease; whereas ‘Zhoumai 36’, ‘Zhoumai 28’, ‘Gaomai 6’, ‘Tunmai 127’, ‘Anke 1602’, and ‘Aikang 58’ had high rates of black point kernel in grains and a heavy disease index, all were classified as having a high susceptibility to wheat black point disease. There were significant differences in the rate of black point kernel among different wheat varieties in the Huang-Huai wheat region. The research results provide important information for variety selection and disease management in the region, which will help guide agricultural production practices, reduce the occurrence of black point disease, and improve wheat yield and quality.

Key words: wheat varieties, Huang-Huai wheat region, black point kernel rate, disease index, resistance grading, resistance performance