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Indian Journal of Plant Genetic Resources
Year : 2016, Volume : 29, Issue : 2
First page : ( 130) Last page : ( 136)
Print ISSN : 0971-8184. Online ISSN : 0976-1926.
Article DOI : 10.5958/0976-1926.2016.00018.8

Assessment of Diversity in Commercial Hybrids of Pearl Millet in India

Yadav OP1,,*, Rai KN2, Yadav HP3, Rajpurohit BS1, Gupta SK2, Rathore A2, Karjagi CG4

1ICAR- All India Coordinated Pearl Millet Improvement Project, Mandor, Jodhpur-342304, Rajasthan, India

2International Crops Research Institute for the Semi-Arid Tropics, Patancheru-502324, Telanagana, India

3CCS Haryana Agricultural University, Hisar-125004, Haryana, India

4ICAR-Indian Institute of Maize Research, Pusa Campus, New Delhi-110012, India

*Author for Correspondence: Email- opyadav21@yahoo.com

Online published on 20 October, 2016.

Abstract

Availability of diverse cultivars is essential in order to meet necessity of regional adaptation to various climatic conditions and to fulfil the farmers’ need of differential preference of various phenotypic traits in pearl millet. The present study attempted to quantify the degree of diversity in commercial hybrids of pearl millet and to understand the relationship among various phenotypic and quality traits. A total of 122 commercial hybrids were evaluated at three diverse locations. Results showed large variation for flowering time (42–58 days), tillering (1.1–4.4 panicles/plant), individual grain size (7.6–17.3 mg), plant height (185–268 cm), panicle length (20–33 cm) and grain yield (35–72 q/ha). Clustering of hybrids resulted in 7 distinct clusters, which highlighted the successful efforts of national programme of pearl millet improvement toward genetic diversification of hybrids. These results are discussed as to how this reported diversity has helped in extending the hybrid technology in some of the most difficult and diverse production ecologies. Phenology, tillering and height had significant influence on yields of hybrids. Taller hybrids provided higher yield. Hybrids with lesser duration and shorter height produced more tillers and tillering decreased with the increase in panicle length. The correlation of grain yield with Fe and Zn concentration in grains was not significant suggesting that both these micronutrients can be improved without significantly compromising on grain yield.

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Keywords

Adaptation, Genetic diversity, Hybrids, Pearl millet, Trait association.

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