Volume 11, Issue 2, November 2014, Pages 494–502
Muhammad Shahedul Alam1, L. Hassan2, M. M. Islam3, S. N. Begum4, and S. N. Islam5
1 Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh, Bangladesh
2 Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh, Bangladesh
3 Biotechnology Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, Bangladesh
4 Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, Bangladesh
5 Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh, Bangladesh
Original language: English
Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The study was carried out with an objective to evaluate the agronomic performance of 76 rice genotypes and to learn the variability, heritability and genetic advance of yield and its components. The genotypes differed significantly for all the characters viz., days to 50% flowering, days of maturity, number of tillers plant-1, number of effective tillers plant-1, plant height, panicle length, number of filled grain panicle-1, number of unfilled grain panicle-1, 1000-seed weight and yield plant-1. The phenotypic co-efficient of variation (PCV) were higher than genotypic co-efficient of variation (GCV) for all the characters studied indicating that they all interacted with the environment to some extent. All the characters studied in the present investigation expressed high heritability estimates ranging from 78.38 to 99.14 percent. High heritability values indicate that the characters under study are less influenced by environment in their expression. High heritability along with high genetic advance was noticed for the traits, number of filled grains panicle-1 and number of unfilled grains panicle-1. Other characters showed high heritability along with moderate or low genetic advance which can be improved by intermating superior genotypes of segregating population developed from combination breeding.
Author Keywords: Genetic variability, Heterogeneous, Gene pool, Stress-tolerance, Cultivars, Additive gene.
Muhammad Shahedul Alam1, L. Hassan2, M. M. Islam3, S. N. Begum4, and S. N. Islam5
1 Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh, Bangladesh
2 Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh, Bangladesh
3 Biotechnology Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, Bangladesh
4 Plant Breeding Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, Bangladesh
5 Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh, Bangladesh
Original language: English
Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The study was carried out with an objective to evaluate the agronomic performance of 76 rice genotypes and to learn the variability, heritability and genetic advance of yield and its components. The genotypes differed significantly for all the characters viz., days to 50% flowering, days of maturity, number of tillers plant-1, number of effective tillers plant-1, plant height, panicle length, number of filled grain panicle-1, number of unfilled grain panicle-1, 1000-seed weight and yield plant-1. The phenotypic co-efficient of variation (PCV) were higher than genotypic co-efficient of variation (GCV) for all the characters studied indicating that they all interacted with the environment to some extent. All the characters studied in the present investigation expressed high heritability estimates ranging from 78.38 to 99.14 percent. High heritability values indicate that the characters under study are less influenced by environment in their expression. High heritability along with high genetic advance was noticed for the traits, number of filled grains panicle-1 and number of unfilled grains panicle-1. Other characters showed high heritability along with moderate or low genetic advance which can be improved by intermating superior genotypes of segregating population developed from combination breeding.
Author Keywords: Genetic variability, Heterogeneous, Gene pool, Stress-tolerance, Cultivars, Additive gene.
How to Cite this Article
Muhammad Shahedul Alam, L. Hassan, M. M. Islam, S. N. Begum, and S. N. Islam, “Evaluation of Habitual Rice (Oryza sativa L.) Landraces of Bangladesh through Different Genetic Parameters,” International Journal of Innovation and Scientific Research, vol. 11, no. 2, pp. 494–502, November 2014.
