Table 2 Plant height, ear length, ear diameter, grain weight/ear, and shelling percentage of maize as affected by irrigation intervals and foliar application of K-silicates in the 2017 and 2018 seasons.
Characters | Irrigation intervals (I) | Season 2017 | Season 2018 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Foliar application of K-silicate (K2SiO3) | L.S.D.0.05 | Foliar application of K-silicate (K2SiO3) | L.S.D.0.05 | ||||||||||||||
S1 (once) | S2 (twice) | S3 (three times) | S4 (control) | Average (I) | I | S | I × S | S1 (once) | S2 (twice) | S3 (three times) | S4 (control) | Average (I) | I | S | I × S | ||
Plant height (cm) | I1 (10 days) | 251.7 | 245.7 | 254.7 | 251.3 | 250.8 | 236.0 | 220.0 | 220.0 | 231.0 | 226.8 | ||||||
I2 (15 days) | 227.0 | 239.3 | 248.3 | 226.7 | 235.3 | 6.7 | 5.4 | 9.3 | 219.0 | 211.3 | 224.7 | 208.7 | 215.9 | 6.9 | 5.0 | 10.3 | |
I3 (20 days) | 229.5 | 238.3 | 251.3 | 223.7 | 235.7 | 200.0 | 198.7 | 205.3 | 194 | 199.5 | |||||||
Average | 236.1 | 241.1 | 251.4 | 233.9 | 218.3 | 210.0 | 216.7 | 211.2 | |||||||||
Ear length (cm) | I1 (10 days) | 18.53 | 19.07 | 20.4 | 18.8 | 19.2 | 17.2 | 18.3 | 18.6 | 18.8 | 18.2 | ||||||
I2 (15 days) | 18.2 | 18.27 | 20.3 | 18.4 | 18.8 | 0.4 | 1.0 | 1.1 | 18.8 | 19.3 | 19.5 | 18.9 | 19.1 | 0.6 | 0.9 | 1.2 | |
I3 (20 days) | 17.33 | 17.9 | 18.9 | 17.5 | 17.9 | 18.2 | 18.5 | 19.67 | 17.4 | 18.4 | |||||||
Average | 18.0 | 18.4 | 19.9 | 18.2 | 18.1 | 18.7 | 19.3 | 18.4 | |||||||||
Ear diameter (cm) | I1 (10 days) | 4.3 | 4.5 | 4.6 | 4.3 | 4.4 | 4.3 | 4.4 | 4.5 | 4.5 | 4.4 | ||||||
I2 (15 days) | 4.2 | 4.5 | 4.6 | 4.4 | 4.4 | ns | 0.3 | ns | 4.3 | 4.4 | 4.5 | 4.2 | 4.3 | ns | ns | ns | |
I3 (20 days) | 4.2 | 4.3 | 4.5 | 4.0 | 4.3 | 4.3 | 4.5 | 4.5 | 4.3 | 4.4 | |||||||
Average | 4.2 | 4.4 | 4.6 | 4.2 | 4.3 | 4.4 | 4.5 | 4.4 | |||||||||
Grain weight/ear (g) | I1 (10 days) | 149.9 | 171.2 | 171.9 | 154.2 | 161.8 | 150.5 | 168.7 | 177.1 | 151.5 | 162.0 | ||||||
I2 (15 days) | 157.7 | 170.1 | 177.1 | 154.0 | 164.7 | 15.0 | 13.0 | 19.8 | 158.8 | 169.1 | 176.7 | 155.8 | 165.1 | 6.9 | 6.5 | 12.5 | |
I3 (20 days) | 130.8 | 153.8 | 167.3 | 133.3 | 146.3 | 134.0 | 153.8 | 166.5 | 136.8 | 147.8 | |||||||
Average | 146.1 | 165.0 | 172.1 | 147.2 | 147.8 | 163.9 | 173.4 | 148.0 | |||||||||
Shelling percentage (%) | I1 (10 days) | 77.0 | 75.0 | 80.0 | 76.0 | 77.0 | 83.0 | 89.0 | 90.0 | 81.0 | 85.8 | ||||||
I2 (15 days) | 74.0 | 78.0 | 81.0 | 74.0 | 76.8 | 1.5 | 3.5 | 4.3 | 86.0 | 87.0 | 91.0 | 82.0 | 86.5 | 2.6 | 4.1 | 5.8 | |
I3 (20 days) | 70.0 | 72.0 | 75.0 | 69.0 | 71.5 | 77.0 | 81.0 | 85.0 | 73.0 | 79.0 | |||||||
Average | 73.7 | 75.0 | 78.7 | 73.0 | 82.0 | 85.7 | 88.7 | 78.7 | |||||||||
