Inheritance of resistance to bacterial leaf blight in native germplasm of rice (Oryza sativa L.)

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S. K. Nair
S. S. Baghel
R. K. Sahu

Abstract

Bacterial leaf blight of rice (Oryza sativa L.) caused by Xanthomonas oryzae pv. oryzae is one of the disastrous diseases in the rice growing regions of the world. It has been reported to occur in epidemic form in several parts of the World and in India. Depending upon the severity and stage of its occurrence, the losses in grain yield have been estimated to range fro m 6 to 60 per cent under natural condition [1]. Since chemical control is found to be ineffective, incorporation of resistant genes and its use is the best approach to control the disease. Seven indigenous rice accessions from Madhya Pradesh germplasm having resistance and moderate resistance to isolate 6 of Xanthomonas oryzae pv. oryzae were Bhejari II (B 565 II), Kalkatiha, Kranchi, Assam Chudi (A:384), Deshi Chudi (0:1138), Surmatia and Assam Chudi (A:402). The work of studying mode of inheritance in these accessions were carried out at the Department of Plant Breeding and Genetics, IGAU, Raipur during kharif 1996. Out of these seven accessions, six accessions were crossed to a known susceptible variety MW 10 whereas remaining Bhejari II was crossed with another well known susceptible variety TN 1.

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How to Cite
Nair, S. K., Baghel, S. S., & Sahu, R. K. (2002). Inheritance of resistance to bacterial leaf blight in native germplasm of rice (Oryza sativa L.). INDIAN JOURNAL OF GENETICS AND PLANT BREEDING, 62(03), 249–250. https://doi.org/.
Section
Research Article