The Diversity and Antagonistic Ability of Trichoderma spp. on the Aspergillus Flavus Pathogen on Peanuts in North Center of Vietnam

Nguyen Thi Thanh^1, , Ho Thi Nhung¹, Nguyen Thi Thuy¹, Thai Thi Ngoc Lam¹, Phan Thi Giang¹, Tran Ngoc Lan², Nguyen Van Viet³ and Vu Trieu Man⁴

¹Vinh University, Vinh, Vietnam

²Institute of Regional Research and Development, Ha Noi, Vietnam

³Vietnam Academy of Agricultural Sciences, Ha Noi, Vietnam

⁴Phytopathological Society of Vietnam, Research Centre for Plant and Animal Health, Hanoi, Vietnam

Cite this paper:
Nguyen Thi Thanh, Ho Thi Nhung, Nguyen Thi Thuy, Thai Thi Ngoc Lam, Phan Thi Giang, Tran Ngoc Lan, Nguyen Van Viet and Vu Trieu Man. The Diversity and Antagonistic Ability of Trichoderma spp. on the Aspergillus Flavus Pathogen on Peanuts in North Center of Vietnam. World Journal of Agricultural Research. 2014; 2(6):291-295. doi: 10.12691/wjar-2-6-8

Abstract

Among 1000 peanut soil samples were collected from Nghe An province, Thanh Hoa province and Ha Tinh province, 44.90% samples occurred Trichoderma. The appearance ratio of Trichoderma in Nghe An, Thanh Hoa, Ha Tinh is 44.30%, 52.00% and 39.50%, respectively. By using in the dual culture method on PDA, The Percent Inhibition of Mycelial Growth (PIRG) was determined to be very high in 28 Trichoderma strains (made up 28.3% in total), 29 others strains was dertermined that to be high PIRG (made up 29,3% in total). The highest PIRG was 100%, occurred on T. harzianum (Tri.019(4).NC; Tri.053(1).TG; Tri.011(1).NL; Tri.002(2).NX strain), T. atroviride (Tri.020(2).NC; Tri.011(1).NC strain), T. reesci (Tri.007(1).NĐ), T. hamatum (Tri.039(1).TG), T. virens (Tri.014(4).NC) and T. pseudokonigii (Tri.014(1).NL).

Keywords:
Antagonistic ability Aspergillus flavus Diversity PIRG Trichoderma

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