Abstract
In vivo studies were conducted to assess the morphological traits of 35 rice genotypes under normal and drought stress conditions. These studies present sufficient exploitable genetic variability for various yield related traits in the rice genotypes. There was a significant variation for all the traits studied in the genotypes. The results indicated that the highest genetic variability was observed for plant height, panicle length, number of tillers and 100-seed weight. Relative water content showed negative and highly significant correlation with leaf water content in both conditions with values of -0.670** and - 0.582** in normal and drought conditions respectively. Plant height showed positive and highly significant phenotypic correlation with flag leaf in both normal and drought stress conditions. In normal stress condition 100-seed weight showed positive correlation with plant height (0.035), number of tillers (0.229), flag leaf (0.159), panicles per hill (0.083) and panicle length (0.063); while in drought stress 100-seed weight showed positive correlation only with relative water content (0.201). The derived information would be of further use in designing potential rice breeding program aimed at the development of new rice genotypes suitable for water stress prone areas.
| Original language | English |
|---|---|
| Pages (from-to) | 1183-1188 |
| Number of pages | 6 |
| Journal | Plant Archives |
| Volume | 13 |
| Issue number | 2 |
| State | Published - Oct 2013 |
| Externally published | Yes |
Keywords
- Correlation
- Morphological traits and stress
- Oryza sativa