Table 2. Effect of NAA dosage and soaking duration on some enzyme activity in whip grass cuttings in 2012.

		NAA dosage (mg/l)
Characteristics	Soaking duration (min)	0	100	200	300	400
IAAO (mg IAAg−1FW.h−1)	0	16.02±0.01f	16.02±0.01f	16.02±0.01f	16.02±0.01f	16.02±0.01f
	10	16.07±0.01f	15.87±0.07g	15.50±0.04j	15.75±0.07gh	16.26±0.03d
	20	16.12±0.01ef	15.78±0.06g	15.40±0.02k	15.85±0.09g	16.38±0.08c
	30	16.23±0.03de	15.58±0.06ij	15.64±0.08hi	16.52±0.07b	16.74±0.04a
POD (μmol.min-1.g-1FW)	0	2410.69±1.63h	2410.69±1.63h	2410.69±1.63h	2410.69±1.63h	2410.69±1.63h
	10	2395.83±5.52h	2443.75±21.94g	3237.50±6.88b	2710.42±7.29e	2141.67±6.14j
	20	2233.33±6.04i	2627.08±9.10f	3668.75±14.79a	2636.81±3.02f	2134.03±14.08j
	30	2152.08±11.58j	3172.92±9.07c	2745.83±12.33d	2010.42±14.08k	1960.42±17.07l
PPO (U.min-1.g-1FW)	0	59.17±0.27g	59.17±0.27g	59.17±0.27g	59.17±0.27g	59.17±0.27g
	10	57.94±0.09h	60.44±0.38ef	68.0±0.24b	61.39±0.89de	55.06±0.27i
	20	56.89±0.21h	60.89±0.12ef	69.61±0.17a	60.28±0.32fg	54.56±0.37i
	30	55.44±0.39i	62.83±0.42c	62.0±0.65cd	51.33±0.09j	51.33±0.49j

Data were recorded at 10 DAP. Value represented a mean of three replicates with SD of each treatment, which consisted of 10 cuttings. 0 min soaking duration of different NAA dosages (0 mg/l, 100 mg/l, 200 mg/l, 300 mg/l and 400 mg/l) was without treatment and considered as control. Within the same characteristics, means followed by the same letters are not significantly different at P<0.05 according to LSD tests.