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Pathogen Identification of Wheat Common Root Rot in Heilongjiang Province
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Liting Dai, Jingyu Che, Ningtao Liu, Chao Tian, Xuewei Yin, Yong Ma, Zhikun Wang, Jinpeng Zhang, Qichang Zhang
Crops | 2026, 42(2) : 230 - 237
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Crops | 2026, 42(2): 230-237
Pathogen Identification of Wheat Common Root Rot in Heilongjiang Province
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Liting Dai, Jingyu Che, Ningtao Liu, Chao Tian, Xuewei Yin, Yong Ma, Zhikun Wang, Jinpeng Zhang, Qichang Zhang
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  • Keshan Branch, Heilongjiang Academy of Agricultural Sciences / Heilongjiang Spring Wheat Genetic Breeding Engineering Technology Center, Qiqihar 161000, Heilongjiang, China
Published: 2026-04-15 doi: 10.16035/j.issn.1001-7283.2026.02.029
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To investigate the species and pathogenicity of wheat root rot pathogens, diseased plants with symptoms of wheat root rot were collected from 16 sampling sites in six prefecture-level cities in Heilongjiang Province during 2022-2023. A total of 432 fungal isolates were obtained using the tissue isolation method. By combining morphological identification and molecular identification based on 5.8S rDNA-ITS or β-tubulin gene sequence analyses, the pathogens were identified as four species: Bipolaris sorokiniana, Fusarium avenaceum, Fusarium equiseti, and Fusarium proliferatum. The number of isolates for each species was 334, 24, 12, and 3, respectively, with B. sorokiniana being the most frequent, accounting for 77.31% of the total. Verification of Koch’s postulates demonstrated significant differences in pathogenicity among the four species, with both the disease index and disease incidence of B. sorokiniana being higher than those of the three Fusarium species. In summary, B. sorokiniana is the dominant pathogen of wheat root rot in Heilongjiang Province, with the three Fusarium species acting as secondary pathogens.

Wheat root rot  /  Bipolaris sorokiniana  /  Fusarium spp.  /  Pathogenicity
Liting Dai, Jingyu Che, Ningtao Liu, Chao Tian, Xuewei Yin, Yong Ma, Zhikun Wang, Jinpeng Zhang, Qichang Zhang. Pathogen Identification of Wheat Common Root Rot in Heilongjiang Province[J]. Crops, 2026 , 42 (2) : 230 -237 . DOI: 10.16035/j.issn.1001-7283.2026.02.029
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Year 2026 volume 42 Issue 2
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Article Info
doi: 10.16035/j.issn.1001-7283.2026.02.029
  • Receive Date：2025-08-23
  • Online Date：2026-04-30
  • Published：2026-04-15
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  • Received：2025-08-23
  • Revised：2025-10-24
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    Keshan Branch, Heilongjiang Academy of Agricultural Sciences / Heilongjiang Spring Wheat Genetic Breeding Engineering Technology Center, Qiqihar 161000, Heilongjiang, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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