Resistance Screening of Groundnut Advanced Breeding Lines against Collar Rot and Stem Rot Pathogens

Divya Rani, V and Sudini, H and Narayan Reddy, P and Vijay Krishna Kumar, K and Uma Devi, G (2018) Resistance Screening of Groundnut Advanced Breeding Lines against Collar Rot and Stem Rot Pathogens. International Journal of Pure & Applied Bioscience, 6 (1). pp. 467-474. ISSN 23207051

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Forty groundnut advanced breeding lines along with susceptible checks JL-24, J-11 and TMV-2 were used for collar rot (Aspergillus niger) and stem rot (Sclerotium rolfsii) disease screening. Based on the per cent number of plants affected by the collar rot pathogen, the advanced breeding lines were categorized into four groups. The lines present in group I (Resistant) having < 15% incidence, group II (Moderately resistant) having 15.1 to 30%, group III (Susceptible) having 30.1 to 45 % and group IV (Highly susceptible) having > 45% incidence. Similarly among 40 breeding lines only three lines (ICGV86699, ICGV91114 and ICGV 89280) have shown stem rot disease reaction below 3 (up to 25 % plants were symptomatic) and considered to be moderately resistant to stem rot pathogen. The advanced breeding line ICGV99058 has recorded a disease reaction of 5 scale (> 50 % of the plants symptomatic) equal to the susceptible checks which is considered to be highly susceptible to stem rot pathogen.

Item Type: Article
Divisions: Research Program : Asia
Uncontrolled Keywords: Screening, Advanced breeding lines, Groundnut, Stem rot, Collar rot
Subjects: Others > Crop Improvement
Others > Plant Breeding
Mandate crops > Groundnut
Others > Plant Pathology
Depositing User: Mr Ramesh K
Date Deposited: 19 Apr 2018 10:37
Last Modified: 19 Apr 2018 10:37
Official URL:
Acknowledgement: I would like to express my deep and sincere gratitude to Chairman, Co-Chairman and all my advisory committee and other Teaching staff members and friends in the department for their support during the course of study. I also wish to express my profound sense of gratitude to PJTSAU, Government of Telangana and ICRISAT for the financial support in the form of stipend.
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