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Dhiman, Shiwali
- Recitation of R Genes Identified in Common Bean Landrace KRC-5 and KRC-8 Native to Himachal Pradesh against Colletotrichum lindemuthianum Virulences
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Authors
Shabnam Katoch
1,
Abhishek Katoch
1,
Shiwali Dhiman
1,
Pratibha Sharma
1,
S. K. Rana
1,
P. N. Sharma
1
Affiliations
1 Department of Plant Pathology, CSK Himachal Pradesh Krishi Vishvavidylaya, Palampur - 176 062, IN
1 Department of Plant Pathology, CSK Himachal Pradesh Krishi Vishvavidylaya, Palampur - 176 062, IN
Source
Himachal Journal of Agricultural Research, Vol 45, No 1&2 (2019), Pagination: 51-56Abstract
The predicted resistance genes present in three common bean landraces KRC-5, KRC-8 and Jawala were validated for their reaction against Colletotrichum lindemuthianum races prevalent in Himachal Pradesh. The landrace KRC-5 showed resistance to 17 races (3, 7, 87, 179, 211, 238, 259, 437, 503, 513, 529, 537, 737, 775, 935, 957 and 1395) while landrace KRC-8, possessed resistance against 7 races viz., 17, 437, 513, 529, 737, 957 and 1395. In the inheritance test, F2/RIL populations obtained from Jawala X KRC-5 segregated into 3:1/1:1 ratio, further confirming the presence of single dominant resistance gene in land race KRC-5.Keywords
Colletotrichum lindemuthianum, Virulences, KRC (Kinnaur Rajmash Collection), Inheritance, Resistance.Full Text
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- Introgression of Anthracnose Resistance Gene from Common Bean Land Race KRC-8 into Elite Cultivar Jawala
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Authors
Shiwali Dhiman
1,
Anila Badiyal
1,
Shabnam Katoch
1,
Anju Pathania
1,
S. K. Sharma
1,
P. N. Sharma
1
Affiliations
1 Department of Plant Pathology, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
1 Department of Plant Pathology, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
Source
Himachal Journal of Agricultural Research, Vol 46, No 1 (2020), Pagination: 56-61Abstract
Bean anthracnose is one of the major diseases leading to a significant yield losses in susceptible cultivars. Hence, development of widely adaptable anthracnose-resistant cultivars using land races is of immense importance to maintain the production and productivity of the crop in disease prone areas. Keeping this in view, the present investigation was planned to introgress resistance gene from a well known Himalayan land race KRC-8 (Baspa) in the background of high yielding susceptible variety Jawala, both belonging to Andean gene pool. The hybridization, advancement with single seed decent approach and phenotypic screening of F2:8 recombinant inbred lines (RIL) against anthracnose resulted in identification of fifteen potential lines showing resistance to anthracnose. Evaluation of agronomic traits of these lines revealed JB-3 to be significantly better than the parental genotype Jawala for number of pods per plant (18.67), number of seeds per pod (6.67), pod length (13.9 cm) and leaflet length (15.50 cm). Similarly, weight for 100 seeds, which directly contributes towards seed yield of beans, ranged from 48.6g in JB-5-2-2 to a maximum of 52.1g in JB-16-2 which is almost at par with that of Jawala (52.3g). Hence these RILs can be used as resistant donor germplasm for future breeding endeavours.Keywords
Bean Anthracnose, Jawala, KRC-8, Baspa, Agronomic Traits.Full Text
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- Evaluation of Antagonistic Potential of Bio-Control Agents and Organic Inputs for The Management of Bean Anthracnose
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Authors
Affiliations
1 Department of Plant Pathology CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
1 Department of Plant Pathology CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062, IN
Source
Himachal Journal of Agricultural Research, Vol 47, No 1 (2021), Pagination: 104-109Abstract
Management of bean anthracnose remains a great challenge for the farmers owing to variable nature of the pathogen. Generally, disease control involves the use of chemical fungicides but keeping in view their harmful effects on environment, alternative approaches like use of natural antagonists and organic formulations are being explored to mitigate the pollution problem. In the present study, bio-control agents viz., T. harzianum (TH-11), T. harzianum (TH-5), T. koningii (DMA-8), T. koningii (JMA-11), T. viride, Pseudomonas fluorescens and bioformulations namely, Jeevamrit, Bijamrit, Tamerlassi, Vermiwash, Cow urine and Eupatorium extract were evaluated against C. lindemuthianum under in vitro and in vivo conditions. In vitro assessment of the biocontrol agents revealed maximum mycelial growth inhibition by T. koningii (DMA-8) (53.69%) whereas among bioformulations, Jeevamrit was observed to be the most effective, resulting in complete mycelial growth inhibition of the pathogen at 4, 6, 8 and 10 per cent concentrations. Similarly, under pot culture conditions in greenhouse, Jeevamrit showed maximum control of seed borne infection (75.60 %) followed by cow urine (68.25%), while artificially inoculated seeds treated with Jeevamrit and cow urine also showed up to 75.34 and 67.13 % disease control, respectively.Keywords
Common Bean, Anthracnose, Bio-Control Agents, Bioformulations, Jeevamrit, Trichoderma.Full Text
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