Table 2.
Germinable seeds | Dormant seeds | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Init. week | Lab | Oven | Soil | Soil | Init. | Lab | Oven | Soil | Soil | |
0 | 32 | 32 | 16 | 32 | 0 | 32 | 32 | 16 | 32 | |
Species | (%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) | (%) |
Native annual grass | ||||||||||
Brachiaria subquadripara | 26b | 73ab | 84a | 72ab | 8c | 74a | 25b | 12b | 18b | 21b |
Dactyloctenium radulans | 0a | 1a | 4a | 0a | 0a | 100a | 98ab | 96ab | 100a | 84b |
Exotic annual grass | ||||||||||
Chloris inflata | 2b | 47a | 44a | 2b | 0b | 98a | 2c | 1c | 64b | 0c |
Digitaria ciliaris (K) | 8c | 43b | 78a | 45b | 0c | 92a | 56b | 19c | 49b | 0d |
Digitaria ciliaris (W) | 4b | 76a | 64a | 79a | 0b | 95a | 23b | 30b | 19b | 2c |
Echinochloa colona | 1c | 8bc | 49a | 17ab | 0c | 99a | 92ab | 51c | 74b | 6d |
Eleusine indica | 2a | 2a | 0a | 5a | 0a | 98a | 98a | 99a | 93a | 26b |
Pennisetum pedicellatum | 0b | 22a | 33a | 4ab | 0b | 96a | 42b | 36b | 85a | 1c |
Themeda quadrivalvis | 32b | 71a | 69a | 89a | 0 c | 68a | 26bc | 29b | 7c | 0d |
Native perennial grass | ||||||||||
Aristida latifolia | 2b | 38a | 71a | 74a | 0b | 98a | 58b | 27c | 16c | 0d |
Bothriochloa decipiens | 2c | 74a | 70ab | 54b | 0c | 94a | 14bc | 15b | 13bc | 2c |
Chrysopogon fallax | 41a | 62a | 69a | 52a | 0b | 47a | 23b | 23b | 22b | 1c |
Heteropogon contortus (K) | 0c | 83a | 64b | 65b | 0c | 88a | 13cd | 24b | 17bc | 1d |
Heteropogon contortus (W) | 0b | 50a | 47a | 27a | 1b | 76a | 32bc | 39bc | 42b | 17c |
Sporobolus indicus | 2b | 47a | 73a | 73a | 0b | 98a | 53b | 28b | 9c | 0c |
Themeda triandra | 9ab | 22a | 16a | 22a | 0b | 76a | 67ab | 73a | 50b | 9c |
Exotic perennial grass | ||||||||||
Bothriochloa pertusa | 0b | 7ab | 5ab | 22a | 0b | 76a | 53b | 27b | 53b | 4c |
Cenchrus ciliaris | 5c | 16bc | 32b | 55a | 6c | 89a | 56b | 41b | 13c | 14c |
Chloris gayana | 0b | 35a | 57a | 51a | 0b | 53a | 29ab | 3c | 12bc | 1c |
Urochloa mosambicensis | 0b | 2ab | 8ab | 15a | 0b | 100a | 97ab | 92ab | 85b | 34c |
Exotic legume | ||||||||||
Stylosanthes hamata | 11b | 11b | 51a | 14b | 0b | 79a | 81a | 35b | 74a | 66a |
Stylosanthes scabra | 18b | 14b | 44a | 14b | 0c | 47a | 43a | 3b | 33a | 9b |
Other exotic dicotyledons | ||||||||||
Gomphrena celusoides | 47a | 66a | 72a | 55a | 0b | 52a | 33a | 36a | 44a | 4b |
Hyptis suaveolens (K) | 86a | 95a | 77a | 98a | 1b | 9ab | 5ab | 22a | 1b | 0b |
Hyptis suaveolens (W) | 7bc | 26ab | 17ab | 41a | 0c | 54a | 32ab | 23b | 0c | 1c |
Sida acuta | 0b | 1b | 36a | 0b | 0b | 99a | 96a | 61b | 100a | 47b |
Values for germinable or dormant seeds of a species followed by the same letter are not significantly different (P > 0.05). K, collection from Katherine; W, collection from Woodstock.