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Low-temperature growth in grasses from northern latitudes

Published online by Cambridge University Press:  27 March 2009

J. H. Ollerenshaw ,
W. S. Stewart ,
J. Gallimore  and
R. H. Baker
J. H. Ollerenshaw
Affiliation:
Department of Agricultural Biology, The Unixversity, Newcastle upon Tyne
W. S. Stewart
Affiliation:
Department of Agricultural Biology, The Unixversity, Newcastle upon Tyne
J. Gallimore
Affiliation:
Department of Agricultural Biology, The Unixversity, Newcastle upon Tyne
R. H. Baker
Affiliation:
Department of Agricultural Biology, The Unixversity, Newcastle upon Tyne
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Extract

Output from grazing animals in Britain could be increased by extending the growing season of grasslands. In particular the growth of hill pasture species is highly seasonal with 75% of annual production occurring in three summer months (Newbould, 1974). Stocking rates, limited by winter carrying capacity, are therefore low and summer leaf production is undergrazed. The consequent accumulation of mature senescing herbage seriously reduces pasture quality (Eadie, 1968). As a result of this and lack of grass growth, ewes are often poorly nourished prior to mating (November) and throughout pregnancy and early lactation. Hence fertility levels and lamb birth weights and growth rates are low, and mortality rates high (Gunn, 1967).

Type
Short Note
Information
The Journal of Agricultural Science , Volume 87 , Issue 1 , August 1976 , pp. 237 - 239
Copyright
Copyright © Cambridge University Press 1976

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References

REFERENCES

Alcock, M. B. & Levett, J. C. (1968). Analysis of environmental influence on productivity. Hill Land Productivity (ed. Hunt, I. V.), pp. 20–9. Occasional Symposium No. 4, British Grassland Society.Google Scholar
Cooper, J. P. (1963). In Environmental Control of Plant Growth (ed. Evans, L. T.). New York: Academic Press.Google Scholar
Cooper, J. P. (1964). Climatic variation in forage grasses. I. Leaf development in climatic races of Lolium and Daotylia. Journal of Applied Ecology 1, 45–62.Google Scholar
Cooper, J. P. (1973). Leaf growth at low temperature and short days. Report of the Welsh Plant Breeding Station for 1972, p. 18.Google Scholar
Cooper, J. P. & Breese, E. L. (1971). Plant breeding-forage crops and legumes. Potential Crop Production (ed. Wareing, P. F. and Cooper, J. P.). London: Heinemann.Google Scholar
Eadie, J. (1968). 4th Report of the Hill Farming Research Organisation, p. 38.Google Scholar
Gunn, R. G. (1967). A note on hill ewe mortality. Animal Production 9, 263–4.Google Scholar
Lorenzetti, F., Tyler, B. F., Cooper, J. P. & Breese, E. L. (1971). Cold tolerance and winter hardiness in Lolium perenne. I. Development of screening techniques for cold tolerance and survey of geographical variation. Journal of Agricultural Science, Cambridge 76, 199–209.Google Scholar
Mooney, H. A. & Billings, W. D. (1961). Comparative physiological ecology of arctic and alpine populations of Oxyria digyna. Ecological Monograplis 31, 1–29.Google Scholar
Newbould, P. (1974). 6th Report of the Hill Farming Research Organisation, pp. 74–85.Google Scholar
Ollebenshaw, J. H. (1975). 6th Report of the Moor House Field Station, Nature Conservancy Council, pp. 38–41.Google Scholar
Peacock, J. M. (1975). Temperature and leaf growth in Lolium perenne. I. The thermal microclimate: its measurement and relation to crop growth. Journal of Applied Ecology 12, 99–114.CrossRefGoogle Scholar
Pisek, A. (1973). Effect of temperature on metabolic processes. 1: Photosynthesis. 2: Respiration. In Temperature and Life (ed. Precht, H. et al. ), pp. 102–33. Springer-Verlag.CrossRefGoogle Scholar
Stewart, W. S. & Bannister, P. (1974). Dark respiration rates in Vaccinium spp. in relation to altitude. Flora 163, 415–21.CrossRefGoogle Scholar