Identification of new donors for spot blotch resistance in cultivated wheat germplasm

J. Kumari; S. Kumar; N. Singh; S.S. Vaish; S. Das; A. Gupta; J.C. Rana

doi:10.1556/0806.46.2018.028

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Cereal Research Communications

Volume/Issue:: Volume 46: Issue 3

Identification of new donors for spot blotch resistance in cultivated wheat germplasm

Authors:

J. Kumari

J. Kumari ICAR-National Bureau of Plant Genetic Resources, New Delhi-110012, India

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S. Kumar

S. Kumar ICAR-National Bureau of Plant Genetic Resources, New Delhi-110012, India

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N. Singh

N. Singh ICAR-National Bureau of Plant Genetic Resources, New Delhi-110012, India

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S.S. Vaish

S.S. Vaish Banaras Hindu University, Varanasi-221005, India

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S. Das

S. Das Uttar Banga Krishi Viswavidyalaya, Pundibari, CoochBeahar, West Bengal-736165, India

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A. Gupta

A. Gupta ICAR-Indian Institute of Wheat and Barley Research, Karnal-132001, India

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J.C. Rana

J.C. Rana Bioversity International, New Delhi-110012, India

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Pages:: 467–479

Online Publication Date:: Sep 2018

Publication Date:: 01 Sep 2018

Article Category:: Research Article

DOI:: https://doi.org/10.1556/0806.46.2018.028

Keywords:: wheat; spot blotch; germplasm; stability

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One thousand four hundred and eighty three spring wheat germplasm (Triticum aestivum L.) lines comprising Indian as well as exotic lines were screened for resistance to spot blotch disease during winter 2014-15 at hot spot locations i.e., Banaras Hindu University, Varanasi and Uttar Banga Krishi Vishwavidyalaya, Cooch Behar. Severity of the disease at different stages beginning from tillering to dough stage was recorded. Location Severity Index (LSI) of Varanasi was higher than Cooch Behar. Twenty eight accessions were resistant or highly resistant at both locations. These 28 accessions were validated during the winter season (2015–2016). These germplasm were also evaluated at four environments for agronomic traits. Out of 28 accessions, seven (IC564121, IC529684, IC443669, IC443652, IC529962, IC548325 and EC178071-331) were highly resistant across the locations and over the years of study. These accessions comprised one exotic and six indigenous accessions belonging to Uttarakhand and Haryana. Two lines (IC529962 and IC443652) had higher yield than the best check at all the locations. These lines showing highly resistant reaction alongwith wider adaptability can be expedited for direct cultivation or for the development of high yielding and disease resistant cultivars. These lines can also be used for identification of novel resistance gene using allele mining tools and their deployment for the development of spot blotch resistant cultivars.

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Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company

Print ISSN:: 0133-3720

Online ISSN:: 1788-9170

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Cereal Research Communications
Language	English
Size	A4
Year of Foundation	1973
Volumes per Year	1
Issues per Year	4
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0133-3720 (Print)
ISSN	1788-9170 (Online)