Identification of Blast Resistant Breeding Lines through Uniform  Blast Nursery in Rice (Oryza sativa L.)

P. Sadhana; P. Jagan Mohan Rao; B. Laxmi Prasanna; T. Kiran Babu; R. M. Sundaram; N. Balram

doi:10.9734/ijecc/2023/v13i92328

Research Article Open access CC BY 4.0

Identification of Blast Resistant Breeding Lines through Uniform Blast Nursery in Rice (Oryza sativa L.)

P. Sadhana, P. Jagan Mohan Rao, B. Laxmi Prasanna, T. Kiran Babu, R. M. Sundaram, N. Balram

International Journal of Environment and Climate Change · pp. 1059–1065 · Published 13 Jul 2023

10.9734/ijecc/2023/v13i92328

Abstract

Rice blast disease caused by the fungus Magnaporthe oryzae is the most devastating disease of rice causing considerable yield losses. Development of resistant varieties is the most effective and environment friendly strategy to combat losses. RNR 15048 (Telangana sona) (IET23746) is a popular local variety possessing a desirable, short-slender grain type with low glycemic index, good cooking quality and having Pi2 gene for blast. However, it is moderately susceptible to bacterial blight disease and having no durable resistance to blast disease with weak culm. In this context, improvement of RNR 15048 for blast, bacterial leaf blight is important to reduce yield losses. Present study was carried out to screen and identify blast resistant breeding lines in Rice at Regional Agricultural Research station, Polasa, Jagtial, PJTSAU during Rabi, 2022-2023. 18 F3 breeding lines were screened in uniform blast nursery along with parents RNR 15048, MTU 1010 NILs, ISM NILs. TN1 and NLR 34449 were used as the susceptible and resistant checks, respectively for screening blast resistance. Screening was done by following 0-9 Standard Evaluation Scale (SES) for leaf blast. Among the studied 18 F3 breeding lines 12 lines were found resistant with score of 3 and 6 lines were found moderately resistant to screening reaction with score of 5. TN1 showed highly susceptible reaction with score of 9 and NLR 34449 showed highly resistant reaction with score of 1.

Rice blast uniform blast nursery resistant susceptible

References (8)

1 The genome sequence of the rice blast fungus Magnaporthe grisea [DOI]
2 A single fungal MAP kinase controls plant cell-to-cell invasion by the rice blast fungus [DOI]
3 Current Status and Future Prospects for Research on Blast Resistance in Rice (Oryza sativa L.) [DOI]
4 Marker Assisted Gene Pyramiding (MAGP) for bacterial blight and blast resistance into mega rice variety “Tellahamsa” [DOI]
5 Improvement of blast resistance of the popular high-yielding, medium slender-grain type, bacterial blight resistant rice variety, Improved Samba Mahsuri by marker-assisted breeding [DOI]
6 Marker assisted pedigree breeding based improvement of the Indian mega variety of rice MTU1010 for resistance against bacterial blight and blast and tolerance to low soil phosphorus [DOI]
7 Evaluation of blast resistance genes Pi9 and Pi54 in rice against local isolates of Tamil Nad [DOI]
8 International Journal of Pharmacy and Biological Sciences [DOI]

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P. Sadhana, P. Jagan Mohan Rao, B. Laxmi Prasanna, T. Kiran Babu, R. M. Sundaram, N. Balram (2023). Identification of Blast Resistant Breeding Lines through Uniform Blast Nursery in Rice (Oryza sativa L.). International Journal of Environment and Climate Change , 1059–1065. https://doi.org/10.9734/ijecc/2023/v13i92328

Affiliations

P. Sadhana — Department of Genetics and Plant Breeding, College of Agriculture, PJTSAU, Rajendranagar, Hyderabad, Telangana, India.
P. Jagan Mohan Rao — Genetics and Plant Breeding, Seed Research and Technology Center, Rajendranagar, Hyderabad, Telangana, India.
B. Laxmi Prasanna — Genetics and Plant Breeding, Rice Research Scheme, Regional Agricultural Research Station, Jagtial, Telangana, India.
T. Kiran Babu — Rice Research Centre, ARI, PJTSAU, Rajendranagar, Hyderabad, Telangana, India.
R. M. Sundaram — Biotechnology, Crop Improvement Section, ICAR-Indian Institute of Rice Research (IIRR), Rajendranagar, Hyderabad, Telangana, India.
N. Balram — Plant Pathology, Regional Agricultural Research Station, Jagtial, Telangana, India.

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