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园艺学报 ›› 2026, Vol. 53 ›› Issue (3): 845-856.doi: 10.16420/j.issn.0513-353x.2024-1033

• 植物保护 • 上一篇    下一篇

哈茨木霉菌和巨大芽孢杆菌联用对甜瓜枯萎病防效及对甜瓜的促生效应

刘亚南1,*, 温海彬1,*, 韩莹1, 董佳1, 郭艳杰3, 毛晓曦3, 李青梅1, 赵洪波2,**(), 陆秀君1,**()   

  1. 1 河北农业大学植物保护学院,河北保定 071000
    2 廊坊市农业农村局,河北廊坊 065000
    3 河北农业大学资源与环境科学学院,河北保定 071000
  • 收稿日期:2025-07-28 修回日期:2025-12-10 出版日期:2026-03-20 发布日期:2026-03-20
  • 通讯作者:
    ** E-mail:
  • 作者简介:

    * 共同第一作者

  • 基金资助:
    河北省农业产业技术体系资助项目(HBCT2024130204); 石家庄市驻冀高校重点研发计划项目(241490102A); 石家庄市驻冀高校重点研发计划项目(1424236); 河北省自然科学基金项目(C2023204233)

Effects of Trichoderma harzianum Combined with Bacillus megaterium on Melon Fusarium Wilt and the Growth and Yield of Melon

LIU Yanan1, WEN Haibin1, HAN Ying1, DONG Jia1, GUO Yanjie3, MAO Xiaoxi3, LI Qingmei1, ZHAO Hongbo2,**(), LU Xiujun1,**()   

  1. 1 College of Plant Protection,Hebei Agricultural University,Baoding,Hebei 071000,China
    2 Langfang Agriculture and Rural Bureau,Langfang,Hebei 065000,China
    3 College of Resources and Environment Science,Hebei Agricultural University,Baoding,Hebei 071000,China
  • Received:2025-07-28 Revised:2025-12-10 Published:2026-03-20 Online:2026-03-20

摘要: 通过盆栽试验和田间试验探究哈茨木霉菌(Trichoderma harzianum,TH)和巨大芽孢杆菌(Bacillus megaterium,BM)联用对甜瓜枯萎病的防效及对甜瓜生长、产量及土壤中优势菌属丰度的影响;同时,进行上述指标间的相关性分析,并利用qPCR技术分析甜瓜土壤中尖孢镰刀菌属(Fusarium)丰度变化。结果表明:哈茨木霉菌与巨大芽孢杆菌相容性好;盆栽试验表明,与对照相比,TH + BM处理后甜瓜枯萎病的发病率和病情指数分别下降了75.00%和85.19%(P < 0.05);田间试验表明,定植50 d时,TH + BM处理的甜瓜株高、茎粗分别比对照增加了4.88%、4.73%(P < 0.05);单果质量与对照相比提高了6.33%(P < 0.05)。在真菌属水平上,TH + BM处理土壤中尖孢镰刀菌属(Fusarium)、被孢霉属(Mortierella)相对丰度显著低于对照和BM处理(P < 0.05);与对照相比,TH + BM处理提高了植物潜在有益菌微囊菌属(Microascus)和白僵菌属(Beauveria)的相对丰度(P < 0.05)。在细菌属水平上,TH + BM处理相较于对照显著提高了芽孢杆菌属(Bacillus)、假单胞菌属(Pseudomonas)、厄氏菌属(Oerskovia)和生丝微菌属(Hyphomicrobium)相对丰度(P < 0.05)。甜瓜土壤中尖孢镰刀菌属的相对丰度与其枯萎病发病率呈显著正相关,与单瓜质量呈显著负相关。处理后90 d时,TH、BM和TH + BM处理的甜瓜土壤中尖孢镰刀菌浓度分别为5.63 × 104、1.01 × 105和4.82 × 104 copies · g-1,分别为对照(3.50 × 105 copies · g-1)的16.09%、28.86%和13.77%,均显著低于对照(P < 0.05)。综上,哈茨木霉菌和巨大芽孢杆菌联用改善了连作土壤微生物的群落结构,降低了甜瓜枯萎病的发生,提高了甜瓜产量。

关键词: 甜瓜, 生物防治, 土壤微生物, 哈茨木霉, 巨大芽孢杆菌, 枯萎病

Abstract:

To explore the effects of Trichoderma harzianum(TH)in combination with Bacillus megaterium(BM)on the control of melon Fusarium wilt and yield. Pot and field experiments were established to explore the effects of TH + BM on Fusarium wilt incidence,melon plant growth and yield,and the dominant genera abundance in melon soils. Meanwhile,the number of Fusarium gene copies was analyzed through qPCR. The results showed that TH and BM were compatible. Compared with the control,the incidence rate and disease index of melon wilt treated with TH + BM were decreased by 75.00% and 85.19% in the pot experiment,respectively(P < 0.05). The field experiment showed that the heights and stem diameters of melon plants were increased by 4.88% and 4.73% after planted 50 d respectively(P < 0.05). The single fruit weight increased 6.33% within TH + BM treatment compared to the control. At fungal genus level,compared to the control,TH + BM treatment significantly decreased the relative abundances of F. and MortierellaP < 0.05),while increased the relative abundance of Microascus and Beauveria(P < 0.05). At bacterial genus level,compared to the control,TH + BM treatment increased the relative abundances of BacillusPseudomonasOerskovia,and HyphomicrobiumP < 0.05). The correlation analysis showed that the relative abundance of F. was significantly positively correlated with the F. wilt incidence of melon,and significantly negatively correlated with single fruit weight. When melon planted 90 d,the number of FOM copies within TH,BM,and TH + BM treatments were 5.63 × 104,1.01 × 105,4.82 × 104 copies · g-1,accounting for 16.09%,28.86%,and 13.77% of the control(3.50 × 105 copies · g-1),significant different from the control,respectively(P < 0.05). In summary,T. harzianum in combination with B. megaterium improved the structure of microbial community in melon continuously cropping soils,reduce the incidence of melon Fusarium wilt,and increased melon yield.

Key words: melon, biological control, soil microorganisms, Trichoderma harzianum, Bacillus megaterium, Fusarium wilt