Bulletin of the National Research Centre

Table 2 Effect of pre-soaking two sugar beet seed cultivars with tryptophan and irrigated with different levels of salinity on root parameters at 75 days after sowing

From: The physiological effect of pre-soaking with tryptophan on sugar beet (Beta vulgaris L.) productivity under different levels of salinity stresses

Treatments		Root parameters
Salinity (ppm)	Try. (mM)	Length (cm)		Diameter (cm)		Fresh wt. (g)		Dry wt. (g)
Salinity (ppm)	Try. (mM)	DS-9004	LP-15	DS-9004	LP-15	DS-9004	LP-15	DS-9004	LP-15
320	0.0	18.00	15.50	5.57	4.67	6.53	4.60	1.70	1.58
	2.5	18.77	16.67	6.10	5.43	9.83	7.23	2.61	2.99
	5.0	18.33	16.17	5.97	5.13	8.87	6.17	2.39	2.50
2000	0.0	16.83	13.53	5.20	4.20	6.43	4.50	1.67	1.57
	2.5	17.71	16.63	6.00	4.87	9.17	6.37	2.58	2.60
	5.0	16.97	15.50	5.73	4.67	7.90	5.00	1.86	1.84
4000	0.0	16.10	13.30	5.17	3.73	5.23	3.60	1.41	1.38
	2.5	17.33	15.67	5.89	4.40	7.63	5.80	2.34	1.99
	5.0	16.07	14.17	5.73	4.00	6.62	4.83	2.09	1.77
6000	0.0	14.00	13.07	4.87	3.67	4.13	2.20	1.08	0.69
	2.5	16.50	14.50	5.77	4.60	7.03	4.17	2.58	1.62
	5.0	15.07	13.83	5.50	3.90	6.00	4.10	1.38	1.61
8000	0.0	11.50	10.50	3.40	2.93	2.13	1.13	0.66	0.37
	2.5	13.17	13.33	3.99	3.23	3.20	1.80	1.92	0.69
	5.0	12.67	12.83	3.67	3.17	2.83	1.23	0.99	0.47
LSD_5%		2.81		1.26		2.48		0.01
Mean of main effects
Variety	DS-9004	15.93		5.24		6.24		1.82
Variety	LP-15	14.35		4.17		4.18		1.58
LSD_5%		ns		^a		^a		^a
Salinity (ppm)	320.0	17.24		5.48		7.21		2.30
	2000.0	16.20		5.11		6.56		2.02
	4000.0	15.44		4.82		5.62		1.83
	6000.0	14.50		4.72		4.61		1.49
	8000.0	12.33		3.40		2.05		0.85
LSD_5%		ns		0.92		1.81		0.01
Try. (mM)	0.0	11.86		3.62		3.37		1.01
	2.5	13.36		4.19		5.19		1.83
	5.0	12.63		3.96		4.46		1.41
LSD_5%		ns		ns		1.36		0.04

ns non significant
^aSignificant

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