International Journal of Agronomy / 2020 / Article / Tab 3

Research Article

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

Table 3

Root traits changes of PMK (R) 3 rice by split root experiment.

Irrigation treatmentsTotal root length (m hill−1)Root surface area (cm2 hill−1)Average root diameter (mm)Root volume (cm3 hill−1)

PRI14.71 ± 0.16ab1287 ± 61.1b0.95 ± 0.03b0.58 ± 0.02a
PRI24.26 ± 0.10bc1191 ± 47.0b0.91 ± 0.02b0.56 ± 0.01a
PRI34.89 ± 0.12ab1455 ± 82.5a0.83 ± 0.02b0.60 ± 0.02a
PRI44.03 ± 0.13c931 ± 49.7c0.74 ± 0.01c0.51 ± 0.01bc
PRI53.20 ± 0.14d750 ± 28.5d0.65 ± 0.02c0.43 ± 0.02c
PRI62.42 ± 0.14e650 ± 32.2d0.58 ± 0.03d0.37 ± 0.01d
Control3.99 ± 0.19c1234 ± 39.4b1.04 ± 0.04a0.55 ± 0.02a
Mean3.931070.90.810.51
SE0.21677.30.0400.022
CD (0.05)0.455162.30.0850.047
CD (0.01)0.623222.40.1160.064

Changes in rice root length, surface area, root diameter, and volume are shown at different partial root-zone irrigation treatments. 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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