Assessment of Rajmash (Phaseolus vulgaris L.) Germplasm Against Colletotrichum lindemuthianum inciting Bean Anthracnose

Author: Neha, Ritika Singh, Alok Kumar, Anupam Kumar and Shivani Kaundal

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Abstract

The common bean (Phaseolus vulgaris L.) is the world's most widely grown and consumed grain legume. It has more fiber, vitamins, minerals, and proteins than usual. Colletotrichum lindemuthianum is the agent of the most damaging bean disease, anthracnose. The current study was conducted at the Research Farm of the School of Agriculture, Abhilashi University, Mandi (H.P.) during the kharif season of 2022 to assess 30 common bean genotypes obtained from NBPGR regional station Shimla and 10 local cultivars gathered from a separate area of the Mandi district to determine the source of resistance against virulence of Colletotrichum lindemuthianum. Screening of genotypes for anthracnose resistance aids in the identification of 3 highly resistant genotypes ( IC-328492, EC-500200 and IC-329497), 29 moderately resistant genotypes (MR-EC-500262, EC-530916, EC-500250, EC-271523, EC-500210, EC-500206, EC-500307, EC-5309132, EC-500189, EC-44624,EC-500237, IC-328404, IC-329389, IC-328653, IC-328847, IC-328449,IC-328537, IC-328411, IC-328626, IC-329462, IC-328398, IC-328397,Barot-1, Barot-2, Barot-3, Barot-4, Janjehli-1, Karsog-1, Karsog-2) and 8 moderately susceptible genotypes (EC- 500337, EC- 405230, EC- 530936, IC- 328639, IC- 328396, Rampur-1, Nihri-1 and Nihri-2).The resistance genotypes that have been identified can either be subjected to a varietal development selection procedure for direct use by farmers, or they can be used as potential donors of resistant genes in breeding programs to develop cultivars with broad and long-lasting resistance to anthracnose.

Keywords

Screening, Colletotrichum lindemuthianum, Anthracnose disease, Common bean, Resistance

Conclusion

The screening of genotypes for anthracnose resistance was done according to a 0-3 scale (Inglis et al., 1988) and the severity of the disease ranged from 6.66% to 53.33% based on the percent disease index (PDI) genotypes under study was divided into three reaction groups viz. highly resistant (3), moderately resistant (29) and moderately susceptible (8). The resistant cultivar can be used in further breeding programs.

References

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How to cite this article

Neha, Ritika Singh, Alok Kumar, Anupam Kumar and Shivani Kaundal (2023). Assessment of Rajmash (Phaseolus vulgaris L.) Germplasm Against Colletotrichum lindemuthianum inciting Bean Anthracnose. Biological Forum – An International Journal, 15(10): 593-597.