Genetic Diversity Studies in Rice Landraces (Oryza sativa L.) Based on Mahalanobis D2 Distance
S. Manasa, S. Madhusudhan Reddy, K. Gopala Krishna Murthy, A. Meena, M. Ram Prasad
International Journal of Environment and Climate Change · pp. 28–34 · Published 10 Feb 2023
10.9734/ijecc/2023/v13i21649Abstract
The present investigation was carried out to assess the genetic diversity present among 66 rice landraces along with 4 checks for 14 different quantitative traits. All the genotypes were grouped into 5 clusters by performing Tocher’s clustering method using Mahalanobis D2 distance. Cluster I was the largest, comprising of 34 genotypes, followed by Cluster II with 28 genotypes. The maximum genetic distance (D2) was observed between cluster V an III (6243.98), followed by clusters II and III (6166.44), clusters IV and II (6022.47), clusters I and IV (4544.26) and clusters IV and III (4161.67). The results revealed the highest contribution of plant height (25.50%) towards total diversity, followed by days to 50% flowering kernel (3.18%), grain yield per plant (2.42 %) and days to maturity (2.06). The rice genotypes belonging to the clusters III , IV and V were found to be the most divergent, and hence can be utilised in the recombination breeding programmes to exploit maximum heterosis.
Cited by 3
B. Edukondalu, V. Reddy, T. Rani · International Journal of Bio-resource and Stress Management · 2024
Kathiresan Pravin Kumar, R. Pushpam, S. Manonmani · Frontiers in Plant Science · 2024
Showing 2 of 3 known citations — external sources report more than can currently be individually listed.
Related research
- Correlation of Methanotrophs and Soil Enzymes with Available Nutrients in Long Term Green Manured Rice Rhizospheric Soil — shares topic coverage
- Evaluation of Fungicides against Sheath Rot Disease of Rice: An In vitro Study — shares topic coverage
- Evaluation of Nutrient Application and Drones Sprayed Pesticides (Fungicides and Insecticides) on the Disease Severity of Major Diseases of Paddy — shares topic coverage
- Comparative Efficacy of Microbial Biopriming on Germination Kinetics and Seedling Vigor in Rice (Oryza sativa L.) — shares topic coverage
- Production and Evaluation of Pasta (Noodles) from Rice, Cowpea and Orange-Fleshed Sweet Potato Flour Blends — shares topic coverage
Article metrics
Real usage data collected on this platform.
0
Page views
0
PDF downloads
0
Outbound clicks
3
Citations
Views by country
Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".
No views recorded yet.
Traffic sources
Referring site, by host.
No traffic recorded yet.
Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.