1Department of Genetics and Plant Breeding, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya-224 229, Uttar Pradesh, India
2Department of Genetics and Plant Breeding, CSA University of Agriculture and Technology, Kanpur-208 002, Uttar Pradesh, India
3ICAR-Indian Institute of Vegetable Research, Varanasi-221 305, Uttar Pradesh, India
*Corresponding Author: Shiv Prakash Shrivastav, Department of Genetics and Plant Breeding, Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya-224 229, Uttar Pradesh, India, Email: ms.shiv92@gmail.com
Online published on 1 July, 2025.
Salt affected areas have increased day by day because of excessive use of irrigation water with improper drainage coupled with the poor quality of irrigation water. The assessment of genetic divergence existing in the germplasm collections is very important for success of hybridization programme leading to development of high yielding varieties.
The experiment on 113 genotypes (aromatic and non-aromatic rice) including three checks viz., Sarjoo 52, FL 478 and CSR 10 (salt tolerant ) of rice (Oryza sativa L.) was conducted to work out the genetic divergence.
The 113 genotypes were grouped in to eleven different non-overlapping clusters. Cluster II, having 20 genotypes, emerged with highest number of entries. The highest intra-cluster distance was found for cluster X. The maximum inter-cluster distance was recorded between cluster VII and XI. The highest cluster mean for grain yield per plant was observed in cluster III. Presence of substantial genetic diversity among the germplasm lines screened in the present study indicating that this material may serve as good source for selecting the diverse parents for further hybridization program aimed at isolating desirable segregants for grain yield and other important characters.
Cluster, Genetic divergence, Grain yield, Rice, Sodic soil
