Table 3 Effects of various tillage management practices with plant growth regulators on stalk microstructure of maize during 2021–2022ab
Treatments | Cortex thickness (µm) | Small vascular bundle (No.) | Big vascular bundle (No.) | Cross section area (mm2) |
|---|---|---|---|---|
2021 | ||||
ED | 718.7d | 203.8b | 413.9b | 226.8c |
ER | 608.8f. | 156.1c | 373.8d | 212.1c |
EB | 567.7 g | 135.0d | 360.7d | 177.7e |
YD | 815.7b | 177.1c | 402.5b | 267.0b |
YR | 725.4d | 154.5c | 391.3c | 207.9d |
YB | 533.3 h | 121.7d | 347.2e | 197.4d |
EYD | 884.5a | 223.3a | 460.1a | 276.7a |
EYR | 787.5c | 211.1a | 429.5b | 266.2b |
EYB | 656.6e | 142.3d | 345.1e | 198.2d |
CK | 498.9i | 108.3e | 333.7e | 158.0f. |
Analysis of variance | ||||
GR | * | * | * | * |
IM | * | * | * | * |
GR x IM | ns | ns | ns | ns |
2022 | ||||
ED | 713.1d | 145.2d | 385.0c | 202.5d |
ER | 634.3e | 135.5e | 369.7d | 177.6e |
EB | 521.0 g | 112.4 g | 340.9e | 172.3e |
YD | 803.4b | 194.5b | 407.6b | 261.6b |
YR | 706.4d | 167.8c | 396.2c | 221.4c |
YB | 555.4f. | 125.7 g | 354.4e | 192.0d |
EYD | 872.2a | 214.0a | 453.8a | 271.3a |
EYR | 775.2c | 201.8a | 423.2b | 260.8b |
EYB | 644.3e | 133.0e | 338.8f. | 192.8d |
CK | 486.6 h | 99.0 h | 327.4 g | 152.6f. |
Analysis of variance | ||||
GR | * | * | * | * |
IM | * | * | * | * |
GR x IM | ns | ns | ns | ns |
