International Journal of Agronomy / 2020 / Article / Tab 5

Research Article

Preliminary Investigation on Crop Growth, Physiology, and Yield of Rice under Partial Root-Zone Irrigation

Table 5

Changes in yield, yield attributes, and water productivity of PMK (R) 3 rice by split root experiment.

Irrigation treatmentsPanicle number (no. Plant−1)Spikelet number (no. Plant−1)Filled grain percentage1000 grain weight (g)Grain yield (g plant−1)Water productivity (kg grain m−3 of water)

PRI113 ± 0.5ab1222 ± 23.7a92.8 ± 0.3ab27.3 ± 0.36bc27.1 ± 0.60ab0.69 ± 0.018c
PRI212 ± 0.3bc1171 ± 26.9a90.9 ± 0.5b28.0 ± 0.34ab26.8 ± 1.26abc0.85 ± 0.040b
PRI314 ± 0.6a1249 ± 22.5a94.2 ± 1.1a28.8 ± 0.31a29.9 ± 0.79a1.18 ± 0.035a
PRI411 ± 0.5c949 ± 27.9b85.9 ± 1.2c26.4 ± 0.47c23.8 ± 1.58cd1.21 ± 0.069a
PRI58 ± 0.4d796 ± 45.2c83.0 ± 0.8d25.1 ± 0.36d21.9 ± 1.19de1.06 ± 0.057a
PRI65 ± 0.5e583 ± 52.8d79.7 ± 0.5e23.6 ± 0.43e19.6 ± 0.63e1.03 ± 0.033a
Control12 ± 0.3bc1144 ± 48.5a91.9 ± 0.8ab28.3 ± 0.53ab26.6 ± 0.95bc0.22 ± 0.007d
Mean10101688.426.825.10.86
S.E.0.6656.71.170.601.590.062
CD (0.05)1.39119.12.451.273.340.129
CD (0.01)1.90163.13.351.744.580.177

Values indicate the mean of eight plants; ± indicates standard error of the mean; letters indicate significant differences among means according to Student’s t-test. CD represents the critical difference at 95% (0.05) and 99% (0.01) confidence limit.

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