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Enhancing the performance of chilli (Capsicum annuum) through twin role of plant growth promotion and disease suppressionvia Bacillus subtilis-based bioformulation

Indian Agricultural Research Journals

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Title Enhancing the performance of chilli (Capsicum annuum) through twin role of plant growth promotion and disease suppressionvia Bacillus subtilis-based bioformulation
 
Creator BORA, POPY
SAIKIA, BISHAL
RAHMAN, MEHJEBIN
AHMED, SHENAZ SULTANA
CHETIA, RAJASHREE
RAHMAN, NASEEMA
NATH, BHARAT CH
RAJA, WASIM HASSAN
 
Subject B. subtilis, Bioformulation, Chilli, Induced defense enzymes, Plant growth promotion
 
Description Considering the majority of studies confined in vitro evaluation of microbial bioagents against diseases, a study was carried out during 2018–21 at Assam Agricultural University, Jorhat, Assam, (in vivo and field studies) to assess bio-efficacy of B. subtilis (strain LB22)-based liquid bioformulation against bacterial wilt (Ralstonia solanacearum) and anthracnose (Colletotrichum gloeosporioides) diseases of chilli (Capsicum annuum L.). In vivo efficacy of B. subtilis formulation (inclusive treatment involving seed treatment, seedling dip, soil treatment and foliar spray) showed significant suppressiveness against both the diseases coupled with enhanced growth and yield attributes. Subsequently, the field evaluation of Bacillus subtilis formulation comparing standard chemicals also edged over the latter by 15.45% in terms of yield gains in 2-years of study. A significant reduction was found in disease severity during field evaluation of Bacillus subtilis formulation on account of induced resistance via upregulated synthesis of plant defense-enzymes (Polyphenol oxidase, peroxidase, phenylalanine ammonia-lyase, and β-1,3-glucanase) by 2.3–11.0 folds with their peaks mostly expressed within 24–72 h. These results put forward a conceptual framework for delivery mechanism of a microbial bioagent in a formulation mode, having the potential to be effective against a number of other diseases as well.
 
Publisher Indian Council of Agricultural Research
 
Date 2024-01-12
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://epubs.icar.org.in/index.php/IJAgS/article/view/142692
10.56093/ijas.v94i1.142692
 
Source The Indian Journal of Agricultural Sciences; Vol. 94 No. 1 (2024); 039–043
2394-3319
0019-5022
 
Language eng
 
Relation https://epubs.icar.org.in/index.php/IJAgS/article/view/142692/53653
 
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