Genetic Resistance in Pearl Millet Seed Parent Lines Against Diverse Pathotypes of Sclerospora graminicola.

Sharma, R and Rao, V P and Rai, K N and Thakur, R P (2008) Genetic Resistance in Pearl Millet Seed Parent Lines Against Diverse Pathotypes of Sclerospora graminicola. Indian Journal of Plant Protection, 36 (2). pp. 272-276. ISSN 0253-4355

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Abstract

Genetic resistance to downy mildew (Sclerospora graminicola) in parental lines of pearl millet (Pennisetum glaucumGenetic resistance to downy mildew (Sclerospora graminicola) in parental lines of pearl millet (Pennisetum glaucum) is critical for successful commercial cultivation of hybrid cultivars. Twenty-three genetically diverse B-lines were evaluated against two highly virulent, and old and new pathotypes of S. graminicola from two agro-climatic zones in India (Durgapura, Rajasthan, and Patancheru, Andhra Pradesh). Significant differences were observed among the genotypes, pathotypes and their interactions for downy mildew incidence. The downy mildew incidence across test B-lines ranged from 0 to 100%, and the reaction of the lines to different pathotypes varied considerably. Eight B-lines (ICMB 01777, -02333, -03888, -03999, -05333, -06555, -06888 and -07666) exhibited high levels of resistance across pathotypes. These resistant lines could be used in the development of F1 hybrids with stable resistance to diverse pathotypes of downy mildew in India.) is critical for successful commercial cultivation of hybrid cultivars. Twenty-three genetically diverse B-lines were evaluated against two highly virulent, and old and new pathotypes of S. graminicola from two agro-climatic zones in India (Durgapura, Rajasthan, and Patancheru, Andhra Pradesh). Significant differences were observed among the genotypes, pathotypes and their interactions for downy mildew incidence. The downy mildew incidence across test B-lines ranged from 0 to 100%, and the reaction of the lines to different pathotypes varied considerably. Eight B-lines (ICMB 01777, -02333, -03888, -03999, -05333, -06555, -06888 and -07666) exhibited high levels of resistance across pathotypes. These resistant lines could be used in the development of F1 hybrids with stable resistance to diverse pathotypes of downy mildew in India.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Resistance, B-lines, Sclerospora graminicola, Pathotypes, Pearl Millet
Subjects:	Mandate crops > Millets
Depositing User:	Mr Sanat Kumar Behera
Date Deposited:	17 Oct 2011 03:27
Last Modified:	17 Oct 2011 03:52
URI:	http://oar.icrisat.org/id/eprint/2638
Official URL:
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	UNSPECIFIED
Links:	Author

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