Genetic characterization and diversity analysis of indigenous aromatic rice
Sourav Mondal,
Prajjwal Pradhan,
Bimal Das,
Deepak Kumar,
Bappa Paramanik,
Rakesh Yonzone,
Ratul Barman,
Debraj Saha,
Jyotirmay Karforma,
Achyuta Basak,
Prithwiraj Dey,
Mahmoud F. Seleiman
Affiliations
Sourav Mondal
Department of Genetics and Plant Breeding, Uttar Banga Krishi Viswavidyalaya, Pundibari, 736165, Coochbehar, West Bengal, India
Prajjwal Pradhan
Department of Genetics and Plant Breeding, Uttar Banga Krishi Viswavidyalaya, Pundibari, 736165, Coochbehar, West Bengal, India
Bimal Das
College of Agriculture (Extended Campus), Uttar Banga Krishi Viswavidyalaya, Majhian, 733133, Dakshin Dinajpur, West Bengal, India; Corresponding author. Department of Genetics and Plant Breeding, College of Agriculture (Extended Campus), Uttar Banga Krishi Viswavidyalaya, Majhian-733133, Dakshin Dinajpur, West Bengal, India.
Deepak Kumar
College of Agriculture (Extended Campus), Uttar Banga Krishi Viswavidyalaya, Majhian, 733133, Dakshin Dinajpur, West Bengal, India
Bappa Paramanik
Dakshin Dinajpur Krishi Vigyan Kendra, Uttar Banga Krishi Viswavidyalaya, Majhian, 733133, Dakshin Dinajpur, West Bengal, India
Rakesh Yonzone
College of Agriculture (Extended Campus), Uttar Banga Krishi Viswavidyalaya, Majhian, 733133, Dakshin Dinajpur, West Bengal, India
Ratul Barman
Regional Research Station (OAZ), Uttar Banga Krishi Viswavidyalaya Majhian, 733133, Dakshin Dinajpur, West Bengal, India
Debraj Saha
Dakshin Dinajpur Krishi Vigyan Kendra, Uttar Banga Krishi Viswavidyalaya, Majhian, 733133, Dakshin Dinajpur, West Bengal, India
Jyotirmay Karforma
College of Agriculture (Extended Campus), Uttar Banga Krishi Viswavidyalaya, Majhian, 733133, Dakshin Dinajpur, West Bengal, India; Regional Research Station (OAZ), Uttar Banga Krishi Viswavidyalaya Majhian, 733133, Dakshin Dinajpur, West Bengal, India
Achyuta Basak
Department of Genetics and Plant Breeding, Uttar Banga Krishi Viswavidyalaya, Pundibari, 736165, Coochbehar, West Bengal, India
Prithwiraj Dey
Agricultural & Food Engineering Department, Indian Institute of Technology Kharagpur, West Bengal, India
Mahmoud F. Seleiman
Department of Plant Production, College of Food and Agriculture Sciences, King Saud University, Saudi Arabia
Gangetic old alluvial zone in India has conserved many locally adapted aromatic rice landraces. In order to determine the extent of genetic divergence of ten morphological characters, the study was conducted to examine forty-eight aromatic rice genotypes for six Kharif seasons (2016–2021) at the Instructional Farm of Regional Research Station (Old Alluvial Zone), Uttar Banga Krishi Viswavidyalaya, Majhian, West Bengal, India. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. A considerable degree of variation was noted for all the traits being investigated. It was found that the total number of tillers per plant, panicle numbers per plant, number of grains per panicle, fertility percentage, test weight, and grain length/breadth ratio had significantly positive correlated with seed yield per plant. Based on D2 analysis values, all the genotypes were grouped into six clusters. Cluster III (Tulaipanji, Patnai, Basmati 1121, Jugal, and Bahurupi) and Cluster VI (Kanakchur), containing genotypes were found most divergent with maximum inter-cluster distance (6941.51). According to the cluster means, Cluster II had the largest intra-cluster distance (1937.52), and important attributes including test weight, number of grains per panicle, seed yield per plant, and fertility percentage made remarkably significant contributions to this cluster. In terms of principal component analysis, maximum variability was found in PC1 (23.88 %), with high positive loading values for tillers per plant (0.459), panicle number per plant (0.441), seed yield per plant (0.408), fertility percentage (0.364), test weight (0.264), and grain length/breadth (L/B) ratio (0.263). On the basis of biplot analysis, four genotypes, namely Shakbhati, Sugandhi, Bahurupi and Kanakchur, were identified as the most divergent types for the yield-attributing traits of aromatic rice. The diverse genotypes could be used as potential donors in future breeding programmes.
