Tropical Grasslands (1986) Volume 20, 180–183

THE EFFECT OF STORAGE IN CATTLE DUNG ON VIABILITY OF TROPICAL PASTURE SEEDS

M. SIMAO NETO1 and R.M. JONES2

1CPATU/EMNRAPA, C.P. 48, 66.000 Belem—PA, Brazil.
2CSIRO, Division of Tropical Crops and Pastures, Cunningham Laboratory, St. Lucia, Queensland, 4067.

Abstract

Seeds of two grasses (Brachiaria decumbens and Axoponus affinis) and two legumes (Trifolium semipilosum cv. Safari and Stylosanthes scabra cv. Seca) were stored in cattle faeces for 0, 2, 7 and 21 days at temperatures of 10°C, 35°C and 35°/10°C. (8 hours/16 hours diurnal fluctuation).
Longer periods of storage in faeces and higher temperatures of storage markedly decreased the viability of grass seed and soft legume seed but had little effect on hard legume seed. Survival of the susceptible seeds was virtually zero after 21 days storage at the two higher temperatures.

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