Table 5.
Seed number per plant, seed weight per plant and individual seed weight in eight lentil genotypes contrasting for heat tolerance (HT), heat sensitivity (HS), drought tolerance (DT) and drought sensitivity (DS) in the normal-sown well-watered treatment (Control), normal-sown drought-stressed treatment (Drought; D), late-sown well-watered treatment (Heat; H), and late-sown drought-stressed treatment (Heat + Drought; H + D).
| Seed number per plant |
Seed weight (g per plant) |
Individual seed weight (g) |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Genotype | Control | D | H | H + D | Control | D | H | H + D | Control | D | H | H + D |
| DPL 53 (DT1) | 154.2 ± 5.8a | 68.1 ± 4.2c (55.8%) | 50.3 ± 3.3d (67.3%) | 44.6 ± 2.6d (71%) | 3.34 ± 0.16a | 1.52 ± 0.17c (54.4%) | 1.14 ± 0.13d (65.8%) | 0.93 ± 0.11d (72.1%) | 0.025 ± 0.0013a | 0.019 ± 0.0011b (24%) | 0.022 ± 0.0011ab (12%) | 0.017 ± 0.0013b (32%) |
| JL1 (DT2) | 145.2 ± 5.1b | 62.5 ± 4.4c (56.9%) | 54.3 ± 2.8d (62.6%) | 39.1 ± 2.5d (73%) | 3.09 ± 0.18b | 1.56 ± 0.16c (49.5%) | 1.12 ± 0.11d (63.7%) | 0.83 ± 0.09de (73.1%) | 0.023 ± 0.0014ab | 0.019 ± 0.0012b (17.3%) | 0.020 ± 0.0012ab (13%) | 0.016 ± 0.0011b (30.4%) |
| ILL 2150 (DS1) | 168.3 ± 5.9a | 40.3 ± 4.1e (76%) | 26.4 ± 2.1f (84.3%) | 13.8 ± 1.3g (91.8%) | 3.79 ± 0.17a | 1.02 ± 0.17d (73%) | 0.63 ± 0.09e (83.3%) | 0.33 ± 0.07e (91.2%) | 0.023 ± 0.0012ab | 0.015 ± 0.0011cd (34.7%) | 0.017 ± 0.0012cd (26%) | 0.010 ± 0.0012e (56.5%) |
| ILL 4345 (DS2) | 159.7 ± 5.3b | 36.2 ± 3.2e (77.3%) | 29.3 ± 2.3f (81.6%) | 12.7 ± 1.2g (92%) | 3.18 ± 0.16b | 0.76 ± 0.14de (76.1%) | 0.58 ± 0.09e (81.7%) | 0.30 ± 0.08e (90.5%) | 0.015 ± 0.0011cd | 0.013 ± 0.0011de (13.3%) | 0.013 ± 0.0012de (13.3%) | 0.0083 ± 0.0011e (46.6%) |
| 1G 2507 (HT1) | 152.4 ± 5.7a | 62.3 ± 3.6c (59.1%) | 53.1 ± 2.2d (65.1%) | 33.4 ± 2.2d (78%) | 3.54 ± 0.18a | 1.55 ± 0.15c (56.2%) | 1.06 ± 0.09d (70%) | 1.06 ± 0.06d (70%) | 0.020 ± 0.0012b | 0.016 ± 0.0011bc (20%) | 0.018 ± 0.0012b (10%) | 0.012 ± 0.0012bc (40%) |
| 1G 4258 (HT2) | 160.3 ± 5.5a | 56.1 ± 3.1c (65%) | 56.7 ± 2.4c (64.6%) | 31.76 ± 2.1d (80.2%) | 3.43 ± 0.14a | 1.34 ± 0.15c (60.9%) | 1.10 ± 0.10d (67.9%) | 1.03 ± 0.07d (69.9%) | 0.020 ± 0.0011b | 0.016 ± 0.0011bc (20%) | 0.017 ± 0.0012b (15%) | 0.011 ± 0.0011bc (45%) |
| 1G 3973 (HS1) | 148.6 ± 5.8b | 40.5 ± 3.5de (72.7%) | 20.8 ± 2.1ef (86%) | 13.3 ± 1.4g (91%) | 3.28 ± 0.13b | 0.74 ± 0.16de (77.4%) | 0.37 ± 0.06e (88.7%) | 0.20 ± 0.04e (93.9%) | 0.016 ± 0.0012cd | 0.012 ± 0.0012de (25%) | 0.013 ± 0.0011de (18.75%) | 0.009 ± 0.0011e (43.75%) |
| 1G 3964 (HS2) | 141.5 ± 5.3b | 42.3 ± 3.6de (70.1%) | 20.3 ± 2.3ef (85.6%) | 8.96 ± 0.89g (93.6%) | 3.18 ± 0.14b | 0.69 ± 0.13de (78.3%) | 0.30 ± 0.07e (90.5%) | 0.16 ± 0.03e (94.9%) | 0.019 ± 0.0012b | 0.013 ± 0.0011de (31.5%) | 0.016 ± 0.0012bc (15.7%) | 0.010 ± 0.0012e (47.3%) |
LSD values (genotype × treatment; P < 0.001) for seed no./plant = 6.1, seed weight/plant = 0.19 and individual seed weight = 0.0018. Values are means + SEM. (n = 3). Different letters indicate significant differences between means. Values in Parenthesis indicate percentage reduction over control. DT is drought tolerant, DS is drought sensitive, HT is heat tolerant, HS is heat sensitive.