Allelopathic Potential of Green Manure Cover Crops on Germination and Early Seedling Development of Goose Grass [Eleusine indica (L.) Gaertn] and Blackjack (Bidens pilosa L.)

Table 5

Effect of aqueous extracts of eight green manure cover crops on the plumule length of goose grass and blackjack.

Extract tissue	Extract concentration (% w v^−1)					Extract concentration (% w v^−1)
	0	1.25	2.5	3.75	5	0	1.25	2.5	3.75	5
Goose grass						Blackjack
Hyacinth bean
Leaf	17.8^a	17.2^a	11.1^cd	1.8^e	0.0^e	22.85^bc	20.75^bc	14.05^de	5.30^fg	0.55^g
Stem	18.1^a	16.3^ab	13.8^bc	9.9^d	0.0^e	23.50^b	22.45^bc	16.75^cd	13.55^de	9.40^ef
Root	17.8^a	15.7^ab	18.1^a	13.4^bc	10.5^cd	22.95^bc	30.90^a	30.15^a	19.05^bcd	21.10^bc
LSD	3.305					6.287
Red sunnhemp
Leaf	16.23^b	19.30^ab	16.90^ab	10.28^c	3.31^d	28.20^bc	30.25^abc	13.55^f	1.45^g	4.50^g
Stem	16.25^b	18.24^ab	18.75^ab	17.88^ab	16.48^b	28.60^bc	31.90^ab	36.00^a	21.10^de	15.05^ef
Root	16.60^ab	18.73^ab	15.98^b	20.28^a	16.75^ab	30.05^abc	33.20^ab	28.40^bc	24.40^cd	19.60^def
LSD	3.746					6.321
Common rattlepod
Leaf	18.20^b	17.78^bc	16.83^bc	13.78^c	4.58^d	21.35^b	28.60^a	15.30^cd	6.55^e	0.00^f
Stem	18.43^b	18.70^b	17.75^bc	16.11^bc	16.85^bc	20.05^bc	32.65^a	29.35^a	28.95^a	20.55^bc
Root	25.90^a	24.35^a	23.03^a	18.30^b	14.98^bc	20.05^bc	29.55^a	29.95^a	27.25^a	13.08^d
LSD	4.239					5.424
Common bean
Leaf	18.18^ab	20.23^a	19.30^ab	12.80^cde	6.05^f	25.38^abcd	23.10^bcde	20.55^def	15.75^fg	6.80^i
Stem	1858^ab	9.65^ef	14.50^bcde	12.05^de	0.00^g	26.55^abc	26.90^ab	21.75^cde	12.25^gh	8.75^hi
Root	19.44^ab	17.95^abc	16.53^abcd	9.90^ef	5.18^fg	25.15^abcd	28.40^a	19.65^ef	20.40^def	18.25^ef
LSD	5.242					5.039
Radish
Leaf	17.48^abc	19.70^a	14.73^bc	5.38^e	0.25^f	20.90^bcd	20.25^cd	12.45^e	5.55^f	0.00^f
Stem	15.74^abc	17.73^abc	17.80^abc	18.53^ab	10.01^d	17.55^cde	32.35^a	32.65^a	32.05^a	23.25^bc
Root	17.25^abc	17.45^abc	14.25^c	14.45^c	2.19^ef	20.75^bcd	30.05^a	26.55^ab	22.60^bc	15.95^de
LSD	3.977					6.245
Showy rattlebox
Leaf	17.59^ab	18.05^ab	15.21^bc	10.75^c	3.56^d	29.00^cde	29.55^bcde	11.80^f	5.10^gh	0.20^h
Stem	17.53^ab	18.50^ab	20.30^a	17.25^ab	11.18^c	31.45^bcd	34.20^abc	28.90^de	24.90^e	8.75^fg
Root	18.03^ab	18.32^ab	19.25^ab	19.25^ab	18.08^ab	28.75^de	36.75^a	34.75^ab	28.65^de	27.00^de
LSD	4.569					5.237
Tephrosia
Leaf	1.67^c	1.84^abc	1.80^abc	1.82^abc	1.62^ab	22.10^cde	17.85^ef	15.35^f	8.05^g	2.85^h
Stem	1.92^ab	0.91^d	0.24^e	0.00^f	0.00^f	22.30^bcde	24.15^bcd	21.25^de	14.35^f	13.25^f
Root	1.75^bc	1.92^ab	1.88^abc	1.99^a	1.98^ab	22.85^bcde	30.05^a	27.35^ab	26.60^abc	24.75^bcd
LSD	0.234					5.089
Black sunnhemp
Leaf	1.57^abcd	1.49^bcd	1.44^cd	1.37^d	0.28^c	30.20^bc	25.20^cd	8.95^e	2.70^f	0.00^f
Stem	1.66^abcd	1.70^abcd	1.75^abcd	1.48^bcd	1.83^abcd	29.75^bcd	37.45^a	29.50^bcd	23.95^d	14.30^e
Root	1.54^abcd	1.90^abc	2.00^a	1.93^ab	1.87^abc	30.40^bc	35.35^ab	31.30^b	30.25^bc	24.45^cd
LSD	0.472					6.283

Means followed by the same letter for each GMCC are not significantly different at .