Hostname: page-component-77c89778f8-7drxs Total loading time: 0 Render date: 2024-07-18T19:00:52.805Z Has data issue: false hasContentIssue false

Technique for evaluating the potential for growth of shoot and root buds of white clover (Trifolium repens)

Published online by Cambridge University Press:  27 March 2009

P. C. D. Newton
Affiliation:
MAF Technology, Flock House, Bulls, New Zealand
M. J. M. Hay
Affiliation:
DSIR Grasslands, Private Bag, Palmerston North, New Zealand

Summary

An assay was developed for assessing the potential for growth of shoot and root buds of white clover. This paper describes the technique and the experimental results on which it was based. The assay involved the incubation of nodes under standard conditions and the monitoring of bud activity at the nodes. Shoot buds were of primary interest but the assay was also used to investigate the activity of root primordia. Correlative influences were reduced by separating individual nodes and by removal of their subtending leaves and petioles. The optimal environmental conditions for incubation were: a constant temperature of 20 °C, a 24 h photoperiod of low irradiance (4 W/m2) and a high relative humidity (≥ 90%). The technique proved suitable for the monthly screening of 1000–2000 nodes sampled from field populations of white clover.

Type
Crops and Soils
Copyright
Copyright © Cambridge University Press 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Beinhart, G. (1963). Effects of environment on meristematic development, leaf area, and growth of white clover. Crop Science 3, 209213.CrossRefGoogle Scholar
Boller, B. C. & Nösberger, J. (1983). Effects of temperature and photoperiod on stolon characteristics, dry matter partitioning, and nonstructural carbohydrate concentration of two white clover ecotypes. Crop Science 23, 10571062.Google Scholar
Carlson, G. E. (1966 a). Growth of clover leaves-developmental morphology and parameters at ten stages. Crop Science 6, 293294.Google Scholar
Carlson, G. E. (1966 b). Growth of clover leaves after complete or partial leaf removal. Crop Science 6, 419422.CrossRefGoogle Scholar
Chapman, D. F. (1987). Natural reseeding in Trifolium repens demography in grazed hill pastures 2. Seedling appearance and survival. Journal of Applied Ecology 24, 10371043.CrossRefGoogle Scholar
Davies, A. & Evans, M. E. (1990). Axillary bud development in white clover in relation to defoliation and shading treatments. Annals of Botany 66, 349357.CrossRefGoogle Scholar
Dekker, J. H. & Chandler, K. (1985). Herbicide effect on the viability of quackgrass (Agropyron repens) rhizome buds. Canadian Journal of Plant Science 65, 10571064.CrossRefGoogle Scholar
L, Harper. J.. (1977). Population Biology of Plants. London: Academic Press.Google Scholar
Hartmann, H. T. & Kester, D. E. (1959). Plant Propagation. Englewood Cliffs, NJ: Prentice-Hall.Google Scholar
Harvey, H. J. (1979). The regulation of vegetative reproduction. PhD thesis, University of Wales.Google Scholar
Mcintyre, G. & Damson, E. (1988). Apical dominance in Phaseolus vulgar is. The triggering effect of shoot decapitation and leaf excision on growth of the lateral buds. Physiologia Plantarum 74, 607614.CrossRefGoogle Scholar
Mitchell, J. K. (1956). Growth of pasture species under controlled environment. I. Growth at various levels of constant temperature. New Zealand Journal of Science and Technology A38, 203216.Google Scholar
Mitchell, K. J. & Lucanus, R. (1962). Growth of pasture species under controlled environment. III. Growth at various levels of constant temperature with 8 and 16 hours of uniform light per day. New Zealand Journal of Agricultural Research 5, 135144.Google Scholar
Newton, P. C. D. (1986). The establishment, growth and fate of white clover plants. PhD thesis, University of Wales.Google Scholar
Newton, P. C. D., Hay, M. J. M., Thomas, V. J., Glasgow, E. M. & Dick, H. B. (1990). Patterns of axillary bud activity in white clover. Proceedings of the New Zealand Grassland Association 52, 247250.Google Scholar
Romberger, J. A. (1963). Meristems, growth and development in woody plants. USDA Technical Bulletin 1293.Google Scholar
Stevenson, C. A. & Laidlaw, A. S. (1985). The effect of moisture stress on stolon and adventitious root development in white clover (Trifolium repens L). Plant and Soil 85, 249257.Google Scholar
Thomas, R. G. (1987). Vegetative growth and development. In White Clover (Eds Baker, M. J. & Williams, W. M.), pp. 3162. Wallingford UK: CAB International.Google Scholar
Turkington, R., Cahn, M. A., Vardy, A. & Harper, J. L. (1979). The growth, distribution and neighbour relationships of Trifolium repens in a permanent pasture. Journal of Ecology 67, 231243.CrossRefGoogle Scholar
Weiss, D. & Shillo, R. (1988). Axillary bud inhibition induced by young leaves or bract in Euphorbia pulcherrima Willd. Annals of Botany 62, 435440.CrossRefGoogle Scholar
White, J. (1984). Plant metamerism. In Perspectives on Plant Population Biology (Eds Dirzo, R. & Sarukhan, J.), pp. 1547. Massachusetts: Sinauer.Google Scholar