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Presenter Information

R J. Clements, CSIRO

Publication Date

1989

Location

Nice France

Description

Twining tropical pasture legumes such as Siratro ( Macropti­lium atropurpureum) are unable to persist under sustained heavy grazing, whereas prost��ate legumes such as white clover (Trifolium repens) persist well. The reasons for this are not fully understood. Survival of individual Siratro plants is reduced by heavy grazing (Jones and Bunch, 1988). The destruction of growing points of erect legumes during grazing may reduce growth and weaken the plants. The effects of graz­ing pressure on the demography of growing points and on turn­over of plant tissue have been studied at this Laboratory since 1984. Some results are reviewed briefly here.

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Rates of Destruction of Growing Points of Pasture Legumes by Grazing Cattle

Nice France

Twining tropical pasture legumes such as Siratro ( Macropti­lium atropurpureum) are unable to persist under sustained heavy grazing, whereas prost��ate legumes such as white clover (Trifolium repens) persist well. The reasons for this are not fully understood. Survival of individual Siratro plants is reduced by heavy grazing (Jones and Bunch, 1988). The destruction of growing points of erect legumes during grazing may reduce growth and weaken the plants. The effects of graz­ing pressure on the demography of growing points and on turn­over of plant tissue have been studied at this Laboratory since 1984. Some results are reviewed briefly here.