Skip to content
Research Article Open access CC BY 4.0

Character Association Analysis on Morpho-physiological and Yield Parameters of Rice (Oryza sativa L.) under Water Stress

S. Anand, V. G. Jayalekshmy, M. O. Ankitha, S. Bhaskar Reddy, Akhila Ashokan, Reddy , S. Bhaskar

International Journal of Environment and Climate Change · pp. 274–282 · Published 4 May 2023

10.9734/ijecc/2023/v13i71877

Abstract

The present character association study aims to understand the correlation between morphological, physiological and yield traits of rice genotypes under water stress and non-stress conditions, so as to identify the differentially expressing traits under both the conditions. Such differentially expressed traits with positive influence on yield can serve as selection criteria for selection of stress tolerant plants. The experiment was carried out using randomized complete block design with three replications at the department of plant breeding and genetics, college of agriculture, Kerala Agricultural University between December 2021 and March 2022. Sixteen characters pertaining to morphological, physiological and yield of three rice genotypes were recorded under reproductive stage water stress and non-stress conditions. The intensity of trait correlations varied significantly under drought and non-drought conditions. The results of correlation studies indicate positive and significant correlation of grain yield with number of tillers, 1000 grain weight, photosynthetic rate, inter cellular CO2 content and water use efficiency under well-watered condition and of these, 1000 grain weight, and inter cellular CO2 content had significant positive influence on grain yield under drought stress. Principal component analysis results indicated two principal components i.e., PC1 and PC2 accounted for 70.5% and 29.5% of the total variation in grain yield under drought and 89% and 11% respectively under non drought conditions. Correlation and principal component analysis concluded that plants with higher grain weight along with improved high internal carbon dioxide content in leaves can be selected for attaining high yield potential under drought and non-drought conditions and will serve as climate adaptive crops under varying soil moisture levels.

Biplot correlation drought principal component analysis rice water stress yield

References (22)

  1. 1 Influence of extreme weather disasters on global crop production [DOI]
  2. 2 Effects of kinetics of light‐induced stomatal responses on photosynthesis and water‐use efficiency [DOI]
  3. 3 Effect of Drought on Agronomic Traits of Rice and Wheat: A Meta-Analysis [DOI]
  4. 4 Breeding for drought tolerance: Direct selection for yield, response to selection and use of drought-tolerant donors in upland and lowland-adapted populations [DOI]
  5. 5 Effects of Elevated Carbon Dioxide on Photosynthesis and Carbon Partitioning: A Perspective on Root Sugar Sensing and Hormonal Crosstalk [DOI]
  6. 6 The different influences of drought stress at the flowering stage on rice physiological traits, grain yield, and quality [DOI]
  7. 7 Mesophyll photosynthesis and guard cell metabolism impacts on stomatal behaviour [DOI]
  8. 8 Impacts of Drought Stress on Water Use Efficiency and Grain Productivity of Rice and Utilization of Genotypic Variability to Combat Climate Change [DOI]
  9. 9 Photorespiration Coupled With CO2 Assimilation Protects Photosystem I From Photoinhibition Under Moderate Poly(Ethylene Glycol)-Induced Osmotic Stress in Rice [DOI]
  10. 10 Correlation and Path Coefficient Analysis of Yield Components in Rice (Oryza sativa L.) Under Simulated Drought Stress Condition
  11. 11 Genetic Variability, Correlation and Path Analysis in Rice under Optimum and Stress Irrigation Regimes [DOI]
  12. 12 Genetic analysis of yield and agronomic traits under reproductive-stage drought stress in rice using a high-resolution linkage map [DOI]
  13. 13 Association analysis of drought and yield related traits in F2 population of Moroberekan/IR64 rice cross under aerobic condition.
  14. 14 The soil-plant-atmosphere continuum in relation to drought and crop production
  15. 15 Application of principal component analysis for rice f5 families characterization and evaluation [DOI]
  16. 16 Evaluation of the Performance of Some Rice (Oryza sativa L.) Varieties in Two Different Environments [DOI]
  17. 17 Genetic variability and character association studies in advanced backcross generation of rice (Oryza sativa L.)
  18. 18 Phenotypic correlation and path analysis in cultivars and strains of upland rice for drought tolerance [DOI]
  19. 19 EFFECT OF DROUGHT STRESS ON YIELD AND YIELD COMPONENTS IN RICE LANDRACES AND IMPROVED CULTIVARS UNDER GONBAD KAVOUS ENVIRONMENTAL CONDITION
  20. 20 Correlation coefficient and path analysis of rice (Oryza sativa) genotypes under reproductive drought stress in mid hill of Nepal [DOI]
  21. 21 International Journal of Environmental Research and Public Health [DOI]
  22. 22 Journal of Pharmacognosy and Phytochemistry [DOI]

Cited by 0

No indexed citations yet.

Related research

Article metrics

Real usage data collected on this platform.

13

Page views

0

PDF downloads

0

Outbound clicks

0

Citations

Views over time

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

Traffic sources

Referring site, by host.

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.