Table 2.

Spectrophotometric determination of Chitinolytic and Exochitinase activity ofTrichodermaisolates in media supplemented with colloidal chitin derived fromRhizoctoniacell wall (RCW) and Commercial chitin (Cc)

Isolate No.	NAGA conc. (mg/ml)		Volume activity (U/ml X 10-3)
	RCW	Cc	RCW	Cc
GROUP A(T. harzianum / viride)
1	57.67	54.33	4.26	4.54
4	51	111	4.26	17.89
6	41	41	6.82	6.76
10	37.67	37.67	1.99	6.65
14	51	47.67	3.69	7.04
20	74.33	91	33.17	3.41
25	87.67	61	4.66	5.62
32	74.33	104.33	34.02	5.85
68	44.33	64.33	1.25	2.95
73	127.67	77.67	2.84	3.12
120	91	57.67	2.10	5.57
207	67.67	54.33	2.89	0.63
211	64.33	71	1.31	1.76
217	64.33	37.67	9.09	1.48
Th1	74.33	84.33	0.63	1.19
Tv(t)	71	54.33	4.89	7.1
Mean	67.46	65.58	7.37	5.09
	(5.59)	(5.66)	(2.62)	(1.02)
P	0.4837ns		0.0004s
Group B (T. citirinoviride)
24	61	57.67	13.52	20.51
27	47.67	61	1.36	2.73
28	57.67	54.33	9.26	27.83
29	67.67	141	5.96	12.49
43	57.67	54.33	14.37	3.41
Mean	58.34	73.67	8.89	13.39
	(3.23)	(16.88)	(2.42)	(4.86)
P	0.0037s		0.102ns
Group C (T. aureoviride)
12	81	54.33	0.17	18.80
38	81	114.33	22.44	1.76
48	67.67	51	35.16	27.21
55	81	61	2.49	4.88
62	71	47.67	33.06	18.69
98	101	61	17.44	1.25
107	84.33	41	8.69	8.80
202	87.67	107.67	35.78	22.15
249	81	51	13.18	0.85
297	77.67	51	3.35	21.24
231a	87.67	64.33	15.90	27.38
Gv	74.33	61	12.89	24.77
Mean	81.28	63.78	16.71	14.82
	(2.51)	(6.66)	(3.64)	(3.04)
P	0.0015s		0.2799ns
Group D (T. virens)
85	61	327.67	9.88	19.54
93	64.33	154.33	30.33	14.26
99	64.33	234.33	0.68	12.55
152	77.67	71	34.76	19.09
173	71	77.67	9.43	19.77
226	64.33	107.67	23.57	15.62
261	71	77.67	30.16	32.60
326	61	94.33	26.18	19.82
145b1	174.33	64.33	22.38	23.69
Mean	78.78	134.33	20.82	19.66
P	0.0091s		0.0282s
Group E (Isolates of Sec.L ongibrachiatum)
Cb4	84.33	81	20.85	14.88
2	91	61	5.62	16.36
46	84.33	54.33	23.69	10.51
53	84.33	51	7.61	14.77
75	81	57.67	19.31	13.69
97	74.33	64.33	2.73	1.48
102	84.33	61	35.5	15.68
Mean	83.38	61.48	16.47	12.48
	(1.89)	(3.67)	(4.44)	(1.96)
P	0.065ns		0.0342s
Group F (Isolates of Sec. Pachybasium)
8	74.33	94.33	4.71	13.41
91	47.67	51	0.45	0.91
106	67.67	54.33	1.54	2.61
111	77.67	74.33	25.28	7.78
114	71	101	1.82	8.41
204	114.33	61	12.16	5.79
238	87.67	57.67	1.02	7.89
243	91	51	24.31	13.41
332	87.67	57.67	0.34	1.42
125b	94.33	61	5.79	9.09
233b	77.67	57.67	5.62	21.87
40(1)b	74.33	47.67	13.92	9.71
Mean	80.45	64.06	8.08	8.53
	(4.75)	(4.95)	(2.56)	(1.69)
P	0.4463ns		0.0886ns

Figures in parenthesis represent standard error.

^s=significant(P-value<0.05);^ns= non-significant (P-value>0.05).