Publication Date

1989

Description

A large area of New Zealand's hill country has been developed into pasture during the past 60 years by removal of scrub vegetation, aerial application of superphosphate fertiliser and aerial oversowing of pasture seeds in mixture. The key legume used was white clover (Trifolium repens L.), either as the cultivar Grasslands Huia, or as uncertified seed. Grasslands Tahora white clover was released in 1984, selected from material collected from moist hill pastures (Williams et al., 1983). Farmers sowing white clover into such pastures now have a choice of using Tahora (specifically bred for moist hill pasture, close-grazed by sheep), Grasslands Huia, a genetically broad-based cultivar selected for high fertility intensive low­land pasture, or resident white clover which may be present in the pasture as surviving from oversows made between 20-40 years ago. To determine the most suitable material, a compara­tive evaluation of them was made on 4 hill pasture farms, under normal grazing management during 1984-8.

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Performance of Trifolium repens Genotypes Under Grazing in New Zealand Hill Pasture

A large area of New Zealand's hill country has been developed into pasture during the past 60 years by removal of scrub vegetation, aerial application of superphosphate fertiliser and aerial oversowing of pasture seeds in mixture. The key legume used was white clover (Trifolium repens L.), either as the cultivar Grasslands Huia, or as uncertified seed. Grasslands Tahora white clover was released in 1984, selected from material collected from moist hill pastures (Williams et al., 1983). Farmers sowing white clover into such pastures now have a choice of using Tahora (specifically bred for moist hill pasture, close-grazed by sheep), Grasslands Huia, a genetically broad-based cultivar selected for high fertility intensive low­land pasture, or resident white clover which may be present in the pasture as surviving from oversows made between 20-40 years ago. To determine the most suitable material, a compara­tive evaluation of them was made on 4 hill pasture farms, under normal grazing management during 1984-8.