ISSN 2375-1231
African Journal of Crop Science ISSN: 2375-1231 Vol. 13 (1), pp. 001-013, January, 2025. Available online at www.internationalscholarsjournals.org © International Scholars Journals
Full Length Research Paper
Exploring the Genetic Variation of Salt-Tolerant Rice Landraces in Vietnam
Nguyen thi Lang1*, Pham thi Be Tu1, Nguyen Chi Thanh1, Bui Chi Buu2 and Adbelbagi Ismail3
1Cuu Long Delta Rice Research Institute, CoDo, Can Tho, Vietnam.
2Institute of Agricultural Science for Southern Vietnam (IAS).
3Internationl Rice research Institute, Philippine (IRRI).
Accepted 7 May, 2025
Abstract
A collection of 200 salt tolerance rice landraces was assessed for genetic diversity using quantitative agro- morphological characters. ANOVA showed highly significant differences (LSD 0.01) among the traits assessed such as grain length, grain width, number of unfilled grains, 1000-grain weight, leaf length and leaf width except panicles per plant and yield. Correlation coefficients showed that all the traits were highly correlated with each other except yield.. The diversity indices (H’) for quantitative descriptors were high ranging from 0.68 to 0.95. Overall the mean diversity index for all traits was 0.88). Cluster analysis generated by UPGMA grouped the 200 rice landraces into six clusters with similarity coefficient of 20.61. The six clusters were distinct in terms of culm length, number of filled grains, panicle length, panicles per plant, grain length, grain width, yield and biomass.
Key words: Rice, genetic, landraces, diversities.