AN EVALUATION OF PAWERA RED CLOVER WITH PERENNIAL GRASSES IN A SUMMER-DRY ENVIRONMENT

Abstract

Five grasses (Nui ryegrass, Roa tall fescue, Matua prairie grass, Maru phalaris and experimental cocksfoot selection K1858) were sown in mixtures with Pawera tetraploid red clover and compared with a pure sward of Pawera and with a Ruanui ryegrass/Huia white clover control. Yields were taken when mean herbage height was 18 cm by cutting quadrats to 4 cm. Sufficient sheep were used to graze herbage in 48 hours on a 'Cafeteria' basis. Matua, the most rapidly establishing grass, yielded 900 kg DM/ha of sown grass at the first grazing, 4 to 6 times more than cocksfoot. Roa and Ruanui, and 30% more than Nui and Maru. During the next two years, the Matua/Pawera mixture outyielded other mixtures, with most of its superiority evident in the summer and winter. All mixtures outyielded Ruanui/Huia over the same period.The grasses evaluated varied in their compatability with Pawera, the more aggressive the grass the greater the suppression of DM yield of Pawera in the mixture. However, even the most aggressive grass mixture yielded more legume at each grazing than did the Ruanui/Huia pasture. The place of Matua, Nui and Pawera as useful varieties in this summer dry environment are discussed. Keywords: Pawera red clover, Nui ryegrass, Matua prairie grass, Roa tall fescue, Maru phalaris, K1858 cocksfoot, Ruanui ryegrass, Huia white clover, grazing,summer dry environment, Northern Southland.