IN VITRO ANTAGONISTIC ACTIVITY OF TRICHODERMA VIRIDE ISOLATES AGAINST SCLEROTINIA SCLEROTIORUM AND THEIR ROLE IN GROWTH PROMOTION OF COMMON BEAN

Q3 Agricultural and Biological Sciences

journal of biopesticides Pub Date : 2022-06-01 DOI:10.57182/jbiopestic.15.1.20-25

Nayeema Jan, Wasim Sajad Malik, Abdul Hamid Wani, Mansoor Ahmad Malik, Shaiesta Hassan, Mohd Yaqub Bhat

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引用次数: 1

Abstract

A study was done to investigate the antagonistic effects of three Trichoderma viride isolates (TV1, TV2 and TV3) on Sclerotinia sclerotiorum. The results revealed that the isolate TV1 proved to be the best in suppressing the mycelial growth by 77% after 7 days of incubation. However 74.91% and 50% inhibition were recorded on 5th and 3rd days of incubation, respectively. The isolate TV2 caused inhibition of 74.77% on 7th day, and 72.66% and 48.33% after 5th and 3rd days of incubation, respectively. 72.54%, 70.41%, and 51.66% inhibition in mycelial growth of the pathogenic fungus was caused by TV3 isolate after 7th, 5th, and 3rd days of incubation respectively. All the test isolates of T. viride showed a significant effect on the vigour index of common bean. The maximum germination percentage was observed on treatment with TV1 isolate (85%) followed by TV2 (83%) and TV3 (81%) respectively, in comparison to untreated seeds which showed a germination percentage of 73%. Maximum vigour index was shown by those plants whose seeds were treated with TV1 (11560), followed by those treated with isolate TV2 (10707) and TV3 (9234), whereas the control plants showed significantly lower vigour index of 7446 in comparison to treated plants.

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绿色木霉分离株对蚕核菌的体外拮抗活性及其对普通豆生长的促进作用

研究了三株绿色木霉（TV1、TV2和TV3）对核盘菌的拮抗作用。结果表明，培养7天后，TV1菌株对菌丝生长的抑制效果最好，达77%。然而，在培养的第5天和第3天分别记录到74.91%和50%的抑制。培养第7天，分离株TV2的抑制率为74.77%，培养第5天和第3天分别为72.66%和48.33%。培养第7天、第5天和第3天，TV3分离株对病原真菌菌丝生长的抑制率分别为72.54%、70.41%和51.66%。所有试验分离的T.viride对蚕豆活力指数均有显著影响。在用TV1分离物处理时观察到最大发芽率（85%），其次分别是TV2（83%）和TV3（81%），而未处理的种子显示出73%的发芽率。用TV1（11560）处理种子的植物显示出最大活力指数，其次是用分离物TV2（10707）和TV3（9234）处理的植物，而与处理的植物相比，对照植物显示出显著较低的活力指数7446。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

journal of biopesticides Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

0.80

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0.00%

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