Estimation of Heritability and Genetic Advance for Morphological and Physiological Traits in Rice (Oryza Sativa L.) Under Heat Stress

DOI

10.2991/978-94-6463-128-9_26How to use a DOI?

Keywords

“broad-sense heritability; genetic advance; genetic variability; high temperature; plant physiology.”

Abstract

The efficiency of plant breeding programs can be improved by determining genetic variability, heritability, and genetic advance. The experiment was carried out to study the genetic variability, broad-sense heritability, and genetic advance for some morphological and physiological traits in rice influenced by heat stress. A split plot design was used in this study with 16 rice varieties were arranged as sub plot with two heat stress treatments as the main plot. The temperature was set to 37–38 ℃ and 40–41 ℃ and the experiment was carried out with three replications. The observed morphological and physiological traits were tiller number, leaf number, plant height, root length, root fresh weight, root dry weight, shoot fresh weight, shoot dry weight, leaf area, proline content at the vegetative stage, number of sterile pollens, stomatal density, chlorophyl content, and 1000 seed weight. There was a high coefficient of variation for most of the traits observed in the experiment. The phenotypic variances of the observed variables were greater than those of the genotypic variances. This finding was in line with the trends of their phenotypic co-efficient of variances compared to genotypic co-efficient of variances. The broad-sense heritability values were high for all observed traits, except moderate for the number of sterile pollens. The higher the heritability, the better a trait can be inherited into the next progenies. The genetic advances were varied from low to high for all observed traits.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Download article (PDF)

TY  - CONF
AU  - Prita Sari Dewi
AU  - Ida Widiyawati
AU  - Wilis Cahyani
AU  - Kartika Ferrawati
PY  - 2023
DA  - 2023/04/19
TI  - Estimation of Heritability and Genetic Advance for Morphological and Physiological Traits in Rice (Oryza Sativa L.) Under Heat Stress
BT  - Proceedings of the 3rd International Conference on Sustainable Agriculture for Rural Development (ICSARD 2022)
PB  - Atlantis Press
SP  - 251
EP  - 260
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-128-9_26
DO  - 10.2991/978-94-6463-128-9_26
ID  - Dewi2023
ER  -