Table 2.
Summarized findings of salt stress effects during different growth stages of cotton
| Growth stage | Possible reason | Effect on growth | References |
|---|---|---|---|
| Germination | Less and delayed germination due to reduced germination potential, fresh mass and vigor index | Negative | Ahmad et al. (2002) and Guo-Wei et al. (2011) |
| Emergence | Delayed emergence leads to non-availability of nutrients. Less plant vigor which results into poor crop establishment | Negative | Ahmad et al. (2002) |
| Seedling stage | Reduction in plant height, leaf expansion, root vigor, root dry weight, shoot dry weight and net photosynthetic rate | Negative | Ahmad et al. (2002) and Guo-Wei et al. (2011) |
| Root growth | Reduction in root length and number of secondary roots, less fresh and dry weight of the roots | Negative | Shaheen et al. (2012) and Silberbush and Ben-Asher (1987) |
| Flowering and Boll development stage | Delayed onset of flowering, less fruit bearing position, fruit shedding, reduced photosynthetic rate, sucrose transformation rate, boll weight, boll size | Negative | Bernstein and Hayward (1958), Longenecker (1974), Peng et al. (2016a) and Rathert (1983) |
| Fiber length | Reduced sucrose contents, cellulose contents, sucrose transformation rate and reduced activity of metabolic enzymes (alkaline invertase and SPS) | Negative | Longenecker (1974) and Peng et al. (2016a) |
| Fiber strength | |||
| Fiber maturity | |||
| Fiber fineness | Positive | Peng et al. (2016b) |