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Diversity studies in Assam rice genotypes for ratooning ability and perennation

Published online by Cambridge University Press:  05 April 2024

Neha Chakrawarti Open the ORCID record for Neha Chakrawarti [Opens in a new window] ,
Rupam Borgohain  and
Rajshree Verma
Neha Chakrawarti*
Affiliation:
Department of Plant Breeding and Genetics, AAU, Jorhat, India G.B. Pant University of Agriculture and Technology, Pantnagar, India
Rupam Borgohain
Affiliation:
Department of Plant Breeding and Genetics, AAU, Jorhat, India
Rajshree Verma
Affiliation:
Department of Plant Pathology, AAU, Jorhat, India G.B. Pant University of Agriculture and Technology, Pantnagar, India
*
Corresponding author: Neha Chakrawarti; Email: nehachakrawarti1997@gmail.com
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Abstract

The objective of the research was to assess diversity among 50 rice genotypes for ratooning and perennation which refers to ability of a plant to regrow from stubble remaining after harvesting. Results showed that 30 genotypes exhibited different degree of ratoon production and ratoon yield. Diversity analysis revealed that all the ratooning genotypes could be assigned to ten clusters. Clusters III (Binadhan-11 and Sayjihari) and VI (IR-64, DRR-44) were the best performing for ratoon yield. Maximum inter-cluster distance was observed between genotypes falling under clusters III and X followed by genotypes under clusters III and II indicating wider genetic diversity between these genotypes. Thus, these genotypes may be useful for future breeding to develop superior varieties with respect to ratooning ability and ratoon yield.

Keywords

diversity analysisperennationratooning abilityrice
Type
Short Communication
Information
Plant Genetic Resources , Volume 22 , Issue 3 , June 2024 , pp. 191 - 193
Copyright
Copyright © The Author(s), 2024. Published by Cambridge University Press on behalf of National Institute of Agricultural Botany

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References

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