Agro-morphological diversity in wild rice accessions of Eastern Indo-Gangetic region of India

Authors

  • SK Chouhan Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005
  • AK Singh Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005
  • Aparajita Singh Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005
  • SP Singh Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005
  • NK Singh National Research Centre on Plant Biotechnology, Indian Agriculture Research Institute, New Delhi-110012
  • PK Singh Department of Genetics and Plant Breeding, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005

DOI:

https://doi.org/10.3329/bjb.v43i3.21607

Keywords:

Collection, Genetic diversity, Eastern Indo-Gangetic region, Wild accession

Abstract

Thirty five wild rice germplasm accessions collected from natural habitat of Eastern Indo-Gangetic region of India were evaluated to estimate their extent of genetic variability, agro-morphological divergence and relationship among themselves for 14 traits. The accessions showed significant genotypic coefficient of variation for all traits analyzed. The accessions were clustered into six groups, the cluster III contained the highest 12 accessions, and clusters I and IV comprised 11 and 7 accessions, respectively; while cluster II and VI have two accessions each, and clusters V was monogenotypic. The maximum intra-cluster distance was observed in cluster VI followed by clusters IV and II while in inter-cluster distance was observed between clusters V and VI followed by clusters II and V indicates wider genetic diversity between germplasm accessions. High heritability coupled with high genetic advance as per cent of mean was found in the traits filled grains per panicle, total number of grains per panicle and grain yield per plant. The result suggested that these accessions are valuable resource and can be utilized for yield and yield traits besides disease and pest. Therefore, these accessions should be conserved to utilize in transgressive segregation breeding programme of cultivated indica rice.

DOI: http://dx.doi.org/10.3329/bjb.v43i3.21607

Bangladesh J. Bot. 43(3): 337-344, 2014 (December)

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Published

2015-01-14

How to Cite

Chouhan, S., Singh, A., Singh, A., Singh, S., Singh, N., & Singh, P. (2015). Agro-morphological diversity in wild rice accessions of Eastern Indo-Gangetic region of India. Bangladesh Journal of Botany, 43(3), 337–344. https://doi.org/10.3329/bjb.v43i3.21607

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