Studies on Isolation and Screening of Antagonisticmycetes-fungus and Its Antagonistic Effect for Sunflower Sclerotinia Rot

doi:10.3321/j.issn:1000-7091.2006.01.022

Abstract

Abstract: We explored the way of biological control by isolating antagonisticmycetes-fungus from pathogenic soil for Sclerotinia sclerotiorum.The result showed that 38 strains were isolated from soil samples derived from Huhhot,Bayannaoer and Baotou regions of Inner Mongolia.We observed that 8 strains,named as F-1,F-3,F-6,F-8,F-11,F-15,F-21,F-25,displayed antagonisms against S.sclerotiorum on the PDA plate.F-6 and F-8 were selected to study their inhibition to S.sclerotiorum growth and effects of their metabolic products on S.sclerotiorum of sunflower.Meanwhile,we examined the cultural and morphological characteristics of F-6 and F-8.Results showed that F-6,F-8 and their metabolic products could inhibit S.sclerotiorum growth on the PDA plate.

Key words: Sunflower, Sclerotinia sclerotiorum, Antagonist icmycetesfungus, Metabolic products

CLC Number:

S435.655

HU Jun, LIU Zheng-ping, ZHOU Hong-you, DING Jun, SONG Juan. Studies on Isolation and Screening of Antagonisticmycetes-fungus and Its Antagonistic Effect for Sunflower Sclerotinia Rot[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2006, 21(1): 96-99. doi: 10.3321/j.issn:1000-7091.2006.01.022.

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