Table 2.
Physiological mechanism of drought tolerance in different lentil accessions.
| Accession name | Type of accessions | Physiological adaptation strategies | References |
|---|---|---|---|
| PDL-1 and PDL-2 | Drought-tolerant | • Close stomata under terminal drought that brings about a lower transpiration rate • PDL-2 contained comparatively higher chlorophyll content than other genotypes |
(Singh et al., 2016) |
| ILWL-436 and ILWL-314 | Drought-tolerant wild | • Non-significant reduction of chlorophyll content and relative water content (RWC) | (Singh et al., 2016) |
| JL-3 and E-153 | Drought-susceptible wild | • Significant reduction of RWC • Opening of stomata results in higher transpiration rate |
(Singh et al., 2017) |
| PL-4 | Drought-tolerant | • Increased stomatal density and declined the size of stomata | (Talukdar, 2013) |
| IPL-406 | Drought-sensitive | • Early phylochron index • Lower senescence • Lower cell membrane integrity |
(Mishra et al., 2018) |
| HUL-57 | Drought-tolerant | • Late phylochron index • Higher senescence Greater cell membrane integrity |
(Shrestha et al., 2006a) |
| GP-3643 and IC248956 | Drought-tolerant | • Higher stomatal density under osmotic stress | (Sinha et al., 2018) |
| PBA Jumbo2 | Moderately drought-tolerant | • Higher individual leaf area, radiation use efficiency, and harvest index | (Tefera et al., 2022) |
| Fırat 87 and Çiftçi | Drought-tolerant | • No changes in chlorophyll content and RWC under drought | (Morgil et al., 2017) |
| Sultan | Drought-sensitive | • Reduction in chlorophyll content and RWC in response to drought | |
| LL 7833, ILL 7835 & ILL 7814 | Drought-tolerant | • Transpiration is reduced in response to drought | (El Haddad et al., 2021) |
| ILL 4605, ILL 8025 & ILL 7286 | Drought-sensitive | • Transportation did not reduce in response to drought | |
| ILL-6002 Indianhead |
Drought-tolerant | • Tolerant genotypes showed lower levels of biomass production, chlorophyll content, and RWC reduction in response to drought stress than susceptible genotypes | (Biju et al., 2021) |
| PI-468898 ILL-7537 |
Drought-sensitive | ||
| ILL-6002 | Drought-tolerant | • The tolerant genotype exhibited higher levels of net CO2 assimilation and internal CO2 concentration, along with lower levels of stomatal conductance and transpiration under drought stress compared to the sensitive genotype | (Biju et al., 2023) |
| ILL-7537 | Drought-sensitive |