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Relationship between reproductive initiation and ear emergence development in Lolium perenne L.

Published online by Cambridge University Press:  28 August 2008

G. HURLEY ,
T. J. GILLILAND  and
M. O'DONOVAN
G. HURLEY
Affiliation:
Dairy Production Research Centre, Teagasc Moorepark, Fermoy, Co. Cork, Ireland School of Biological Sciences, Queens University Belfast, Northern Ireland
T. J. GILLILAND
Affiliation:
School of Biological Sciences, Queens University Belfast, Northern Ireland Agri-Food & Biosciences Institute, Crossnacreevy, Northern Ireland
M. O'DONOVAN*
Affiliation:
Dairy Production Research Centre, Teagasc Moorepark, Fermoy, Co. Cork, Ireland
*
*To whom all correspondence should be addressed. Email: michael.odonovan@teagasc.ie
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Summary

During spring, perennial ryegrass tillers change from vegetative to reproductive growth in response to photoperiod and undergo irreversible morphological changes. The effect of latitude and meteorological factors on the timing of reproductive initiation and ear emergence (EE) were measured in the field on 40 vernalized spaced plants for each of eight cultivars. The measurements were made at two latitudes in Ireland (Moorepark 52°N, Crossnacreevy 54°N). There was a significant effect of site and cultivar on all the variables measured. Cultivar initiation responded to a specific photoperiod but detection through apical development incurred a small variation due to growing conditions affecting the time taken for a visible change in apical morphology to occur. When converted from photoperiod to initiation date this variance was minimal (±6 min). Timing of EE was dependent on growing conditions not photoperiod and so was specific to the studied conditions. As cultivar rank order for EE date was largely retained, there was a very strong correlation with published UK Plant Breeders Rights (PBR) heading dates for these cultivars, which in turn had a strong relationship with the ear initiation (EI) dates (R2=0·95). The latter relationship was sufficiently robust to allow estimation of photoperiod for any cultivar on the EU Common Catalogue based on its published heading date from Crossnacreevy, where the UK PBR trials are conducted. As photoperiod can be converted to calendar date by reference to latitude, this relationship can also be used to estimate the EI date for sites at latitudes other than those in the current study.

Type
Crops and Soils
Information
The Journal of Agricultural Science , Volume 146 , Issue 6 , December 2008 , pp. 655 - 665
Copyright
Copyright © 2008 Cambridge University Press

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References

REFERENCES

Aamlid, T. S., Heide, O. M. & Boelt, B. (2000). Primary and secondary induction requirements for flowering of contrasting European varieties of Lolium perenne. Annals of Botany 86, 1087–1095.CrossRefGoogle Scholar
Anon (2007). The Common Catalogue of Varieties of Agricultural Plant Species. Brussels: Office for Official Publications of the European Communities. Available online at: http://ec.europa.eu/food/plant/propagation/catalogues/comcat_agri_2008/index_en.htm (verified 27 June 2008).Google Scholar
Camlin, M. S. (1975). Variation in heading dates of perennial ryegrass cultivars as influenced by spring and early summer temperatures. British Journal of Grassland Society 30, 289–294.CrossRefGoogle Scholar
Camlin, M. S. (1978). Spring growth and management of early, mid-season and late varieties of perennial ryegrass. Agriculture in Northern Ireland 52, 303–308.Google Scholar
Canode, C. L., Maun, M. A. & Teare, I. D. (1972). Initiation of inflorescence in cool season perennial grasses. Crop Science 12, 19–22.CrossRefGoogle Scholar
Cooper, J. P. (1952). Studies on growth and development in Lolium perenne III. Influence of season and latitude on ear emergence. Journal of Ecology 40, 352–379.CrossRefGoogle Scholar
Cooper, J. P. (1960). Short-day and low-temperature induction in Lolium. Annals of Botany 24, 232–246.CrossRefGoogle Scholar
Cooper, J. P. & Calder, D. M. (1964). The inductive requirements for flowering of some temperate grasses. Journal of British Grassland Society 19, 6–14.CrossRefGoogle Scholar
Cooper, J. P. & Tainton, N. M. (1968). Light and temperature requirements for the growth of tropical and temperate grasses. Herbage Abstracts 38, 167–176.Google Scholar
Donald, C. M. & Black, J. N. (1958). The significance of leaf area in pasture growth Herbage Abstracts 28, 1–6.Google Scholar
Evans, L. T. (1964). Reproduction. In Grasses & Grasslands (Ed. Barnard, C.), pp. 126–153. London: Macmillan.Google Scholar
Gaastra, P. (1958). Light energy conversion in field crops in comparison with the photosynthetic efficiency under laboratory conditions. Mededelingen van de Landbouw-Hogeschool, Wageningen 58, 1–12.Google Scholar
Gangi, A. S., Chilcote, D. O. & Frakes, R. V. (1983). Growth, floral induction and reproductive development in selected perennial ryegrass Lolium perenne L. cultivars. Journal of Applied Seed Production 1, 34–38.Google Scholar
Gardiner, M. J. & Radford, T. (1980). Ireland: General Soil Map, 2nd ed. Wexford, Ireland: Teagasc.Google Scholar
Gilliland, T. J. (2007). Grass and Clover Recommended Varieties for Northern Ireland 2007/08. Dundonald, Northern Ireland: Department of Agriculture and Rural Development.Google Scholar
Gilliland, T. J., Barrett, P. D., Mann, R. L., Agnew, R. E. & Fearon, A. M. (2002). Canopy morphology and nutritional quality traits as potential grazing value indicators for Lolium perenne varieties. Journal of Agricultural Science, Cambridge 139, 257–273.CrossRefGoogle Scholar
Gowen, N., O'Donovan, M., Casey, I., Rath, M., Delaby, L. & Stakelum, G. (2003). The effect of grass cultivars differing in heading date and ploidy on the performance and dry matter intake of spring calving dairy cows at pasture. Animal Research 52, 321–336.CrossRefGoogle Scholar
Hennessy, D. (2005). Manipulation of grass supply to meet feed demand of beef cattle and dairy cows. Ph.D. thesis, Queen's University, Belfast.Google Scholar
Holmes, C. W. & Hoogendoorn, C. J. (1983). Some effects of grazing management in early lactation and topping on the growth and quality of pasture. In Dairyfarming Annual, Massey University, Palmerston North, NZ, pp. 36–43.Google Scholar
Hurley, G. M. (2007). Factors controlling reproductive development in Lolium perenne L. and their influence on mid-season sward quality. Ph.D. thesis, The Queen's University of Belfast.Google Scholar
Johnson, I. R. & Thornley, J. H. M. (1983). Vegetative crop growth model incorporating leaf area expansion and senescence, and applied to grass. Plant, Cell and Environment 6, 721–729.CrossRefGoogle Scholar
Jones, M. B. & Lazenby, A. (1988). The Grass Crop: the Physiological Basis of Production. London: Chapman and Hall Ltd.CrossRefGoogle Scholar
Keatinge, J. D. H., Camlin, M. S. & Stewart, R. H. (1979). The influence of climatic factors on physiological development in perennial ryegrass. Grass and Forage Science 34, 55–59.CrossRefGoogle Scholar
Korte, C. J. (1981). Spring pasture management to improve summer pasture production. In Dairyfarming Annual, Massey University, Palmerston North, NZ, pp. 25–27.Google Scholar
Lam, S. (2006). Day Length for Various Latitudes. Available online at http://www.orchidculture.com/COD/daylength.html (verified 27 June 2008).Google Scholar
Laredo, M. A. & Minson, D. J. (1975). The voluntary intake and digestibility by sheep of leaf and stem fractions of Lolium perenne. Journal of the British Grassland Society 30, 73–77.CrossRefGoogle Scholar
McCown, R. L. & Peterson, M. L. (1964). Effects of low temperature and age of plant on flowering in Lolium perenne. Crop Science 4, 338–391.CrossRefGoogle Scholar
Meeus, J. (1991). Astronomical Algorithms. Richmond, VA: Willmann-Bell.Google Scholar
NIAB (2007). Pocket Guide to Livestock Crops. Cambridge, England: National Institute of Agricultural Botany.Google Scholar
SAS (2005). User's Guide: Statistics. Cary, NC: SAS Institute.Google Scholar
Schapendonk, A. H. C. M., Stol, W., Van-Kraalingen, D. W. G. & Bouman, B. A. M. (1998). LINGRA, a sink/source model to simulate grassland productivity in Europe. European Journal of Agronomy 9, 87–100.CrossRefGoogle Scholar
Smit, H. J., Tas, B. M., Taweel, H. Z. & Elgersma, A. (2005). Sward characteristics important for intake in six Lolium perenne varieties. Grass and Forage Science 60, 128–135.CrossRefGoogle Scholar
Sweet, N., Wiltshire, J. J. J. & Baker, C. K. (1991). A new descriptive scale for early reproductive development in Lolium perenne L. Grass and Forage Science 46, 201–206.CrossRefGoogle Scholar
Terry, R. A. & Tilley, J. M. A. (1964). The digestibility of the leaves and stems of perennial ryegrass, cocksfoot, timothy, tall fescue, lucerne and sainfoin, as measured by an in vitro procedure. Journal of the British Grassland Society 19, 363–372.CrossRefGoogle Scholar
Weddell, J. R., Baker, L. J., Carr, G. & Drysdale, A. (2007). Recommended Grass and Clover Varieties for Scotland 2007–08. Edinburgh, Scotland: The Scottish Agricultural College.Google Scholar
Wycherley, P. R. (1952). Temperature and photoperiod in relation to flowering in three perennial grass species. Mededelingen van der Landbouw Hoogeschool, Wageningen 52, 75–92.Google Scholar