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

Table 2

Plant growth measurements of rice under the split root experiment.

Irrigation treatments	Plant height (cm plant^−1)	Tiller number (number plant^−1)	Leaf area (cm^2 plant^−1)	Total dry matter accumulation (g plant^−1)
PRI1	81.0 ± 1.02^c	15 ± 0.20^b	4200 ± 70.6^ab	74.2 ± 0.63^c
PRI2	86.5 ± 1.09^b	14 ± 0.13^c	3972 ± 152.2^b	78.8 ± 0.67^b
PRI3	90.2 ± 1.14^a	16 ± 0.15^a	4484 ± 93.5^a	89.1 ± 0.75^a
PRI4	73.8 ± 0.93^d	12 ± 0.13^d	3226 ± 93.3^c	68.5 ± 0.58^d
PRI5	70.2 ± 0.89^e	10 ± 0.12^e	2910 ± 116.1^d	66.3 ± 0.56^e
PRI6	67.9 ± 0.86^e	7 ± 0.11^f	2541 ± 105.9^e	57.6 ± 0.49^f
Control	75.7 ± 0.96^d	14 ± 0.16^c	3908 ± 91.5^b	69.9 ± 0.59^d
Mean	77.9	12.5	3605.8	72.1
SE	0.149	0.059	161.6	0.120
CD (0.05)	0.312	0.123	339.6	0.251
CD (0.01)	0.428	0.169	465.2	0.344

Changes in plant height, tiller numbers, leaf area, and total dry mass accumulation 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.