Table 6 Transient waterlogging effect on soybean yield under different climatic regimes.
Treatments | Seed yield (g pl–1) | Number of pods pl–1 | Number of seeds pod–1 | 100 seed weight | Days to harvest | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Summer | Rainy | Summer | Rainy | Summer | Rainy | Summer | Rainy | Summer | Rainy | |||
Seasons/climate (C) | ||||||||||||
Summer (CS) | 4.2 a | 23.7 a | 1.6a | 10.67 a | 105.01b | |||||||
Rainy (CR) | 2.7 b | 25.2 b | 1.7a | 7.80 b | 115.76a | |||||||
S.Em. ± | 0.029 | 0.198 | NS | 0.303 | 0.68 | |||||||
Stages of waterlogging (S) | ||||||||||||
S15 | 5.1a | 3.8b | 32.2a | 37.7a | 1.8a | 1.8a | 8.8c | 6.3c | 108ab | 128a | ||
S30 | 3.6c | 1.6c | 21.4b | 14.3b | 1.6b | 1.7b | 10.1b | 7.6b | 111a | 128a | ||
S45 | 3.8b | 0.9d | 19.9c | 11.5c | 1.5c | 1.5c | 11.8a | 7.8b | 107b | 103b | ||
S60 | 4.4b | 4.4a | 21.5b | 37.3a | 1.5c | 1.6d | 11.9a | 9.4a | 94c | 104b | ||
S.Em. ± | 0.06 | 0.05 | 0.35 | 0.43 | 0.02 | 0.02 | 0.2 | 0.2 | 1.5 | 1.3 | ||
Durations of waterlogging (D) | ||||||||||||
D2 | 5.0a | 3.5a | 29.2a | 31.5a | 1.7a | 1.8a | 10.7b | 7.8b | 109a | 113c | ||
D4 | 4.6b | 2.9b | 25.4b | 26.1b | 1.8a | 1.7b | 9.9c | 7.0c | 107ab | 113c | ||
D6 | 4.1c | 2.5c | 23.5c | 24.6c | 1.7a | 1.7ab | 10.3bc | 7.4bc | 105ab | 115bc | ||
D8 | 3.9d | 2.4c | 21.6d | 22.9d | 1.6b | 1.6c | 10.8b | 7.9b | 103b | 118a | ||
D10 | 3.5e | 2.1d | 19.0e | 21.0e | 1.4c | 1.4d | 11.6a | 8.8a | 102b | 120a | ||
S.Em. ± | 0.07 | 0.06 | 0.39 | 0.49 | 0.03 | 0.03 | 0.2 | 0.2 | 1.7 | 1.4 | ||
Interactions (S × D) | ||||||||||||
S15D2 | 5.9b | 4.3cd | 35.5b | 41.5bc | 1.7b–d | 2.0a | 9.5g–i | 7.0f.–h | 103d–f | 124c | ||
S15D4 | 5.2c | 3.9ef | 33.6b | 38.5d | 1.8ab | 2.0a | 8.5j | 6.0i | 106b–f | 123c | ||
S15D6 | 4.9cd | 3.7fg | 30.5c | 38.0de | 2.0b–d | 1.9ab | 8.3j | 5.8i | 107b−f | 124c | ||
S15D8 | 4.8cd | 3.6gh | 31.3c | 35.0fg | 1.8bc | 1.9b–d | 8.6ij | 6.1hi | 109b–e | 131bc | ||
S15D10 | 4.6de | 3.3h | 29.8c | 35.7ef | 1.7c–e | 1.4h | 9.2h–j | 6.7g–i | 114a–c | 140a | ||
S30D2 | 4.1fg | 2.9i | 27.3d | 23.8h | 1.8bc | 2.0ab | 10.3e–g | 7.8d–f | 120a | 123c | ||
S30D4 | 4.0f.–h | 1.6j | 22.0e–g | 13.2j | 1.8b–d | 1.6e–g | 8.3j | 5.8i | 112a–d | 124c | ||
S30D6 | 3.5i–k | 1.3j–l | 22.8ef | 12.7j | 1.6ef | 1.5g | 9.6gh | 7.1fg | 111a–d | 128c | ||
S30D8 | 3.4j–l | 1.1k–m | 20.5gh | 12.2j−l | 1.7b–d | 1.6fg | 10.0f.–h | 7.5e–g | 109b–e | 130bc | ||
S30D10 | 3.1l | 1.1l | 14.3j | 9.7kl | 1.3gh | 1.9a–c | 12.3ab | 9.8a | 104c–f | 136ab | ||
S45D2 | 4.3ef | 1.4jk | 24.7e | 16.5i | 1.5fg | 1.7e–g | 11.7b–d | 7.7e–g | 115ab | 104d | ||
S45D4 | 4.1fg | 1.4j–l | 22.7e–g | 13.5j | 1.7c–e | 1.6g | 10.8a–c | 6.8g–i | 111a–d | 103d | ||
S45D6 | 3.8g–j | 0.7m | 20.0h | 12.3jk | 1.7b–d | 1.7d–f | 11.1c–e | 7.1fg | 111a–d | 104d | ||
S45D8 | 3.6h–k | 0.6m | 17.7i | 9.3l | 1.4f.–h | 1.3h | 12.4ab | 8.4c–e | 100e–g | 104d | ||
S45D10 | 3.0l | 0.6m | 14.5j | 6.0m | 1.4f.–h | 1.1i | 13.0a | 9.0a–c | 99fg | 101d | ||
S60D2 | 5.6b | 5.3b | 29.2cd | 44.3b | 1.7b–d | 1.6e–g | 11.3c–e | 8.8b–d | 97fg | 102d | ||
S60D4 | 4.9cd | 4.6c | 23.2ef | 39.2cd | 1.8b–d | 1.6fg | 12.1a–c | 9.6ab | 98fg | 102d | ||
S60D6 | 4.3ef | 4.3cd | 20.5gh | 35.5ef | 1.6de | 1.8c–e | 12.1a–c | 9.6ab | 92g | 104d | ||
S60D8 | 3.8g–i | 4.1de | 17.0i | 35.0fg | 1.3h | 1.7d–f | 12.1a–c | 9.6ab | 92g | 107d | ||
S60D10 | 3.2kl | 3.6fg | 17.5i | 32.5g | 1.3h | 1.3h | 12.1a–c | 9.6ab | 92g | 103d | ||
Control | 6.7a | 6.6a | 41.3a | 51.3a | 1.8ab | 2.0a | 10.3e–g | 8.9b–d | 95g | 102d | ||
S.Em. ± | 0.14 | 0.11 | 0.8 | 1.0 | 0.05 | 0.05 | 0.4 | 0.4 | 3.3 | 2.9 | ||