Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-22T22:21:00.804Z Has data issue: false hasContentIssue false
  • English
  • Français

Growth cabinet studies into cold-tolerance of Festuca arundinacea populations*: III. Cold tolerance of roots and shoots

Published online by Cambridge University Press:  27 March 2009

W. D. Thomas  and
Alec Lazenby
W. D. Thomas
Affiliation:
Gezira Research Station, Wad Medani, Sudan
Alec Lazenby
Affiliation:
Department of Agronomy, University of New England, Armidale, N.S.W.
Get access Rights & Permissions [Opens in a new window]

Summary

Plants of three populations of Festuca arundinacea, syn. 1 and syn. 2 (North African) and S. 170 (British) were subjected to 3 h cold stress treatments in the range 13–25 °F. Such treatments were applied independently to either roots or shoots, the untreated plant portions remaining at 35–40 F°.

In all populations considerable tiller death occurred following exposure of roots to temperatures of 17 °F or below; however at no temperature was there complete killing of tillers. Tiller deaths occurred following shoot exposure to temperatures below 21 °F in syn. 1 and syn. 2, and below 19 °F in S. 170. Universal mortality occurred in all populations after shoot exposure to 13 °F.

The degree of insulation of the root: shoot junctions affected survival of both roots and shoots in all populations. Discrepancies between apparent damage to plant parts following treatment, and subsequent survival, suggested that the ability of plants to replace damaged parts might influence survival.

Conclusions are included from the completed programme of growth cabinet studies on cold tolerance of F. arundinacea populations reported in the present series of papers.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 70 , Issue 3 , June 1968 , pp. 355 - 360
Copyright
Copyright © Cambridge University Press 1968

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

Beard, J. B. & Olibn, C. R. (1963) Low temperature injury in the lower portion of Poa annua L. crowns. Crop Sci. 3, 362–3.CrossRefGoogle Scholar
Birch, P. D. W. (1967). A comparative study of the growth of North African and indigenous varieties of Festuca arundinacea under winter conditions of temperature and light. Ph.D. thesis. Univ. Cambridge.Google Scholar
Dexter, S. T. (1956). The evaluation of crop plants for winter hardiness. Adv. Agron. 8, 203–39.CrossRefGoogle Scholar
Kohn, H. & Levitt, J. (1965). Frost hardiness studies on cabbage grown under controlled conditions. Pl. Physiol. 40, 476–80.CrossRefGoogle ScholarPubMed
Kolsova, A. (1941). Winter-hardiness in perennial herbage plants. (from) Herb. Abstr. 14, abs. 256.Google Scholar
Olien, C. R. (1964). Freezing process in the crown of ‘Hudson’ barley. Crop Sci. 4, 91–5.CrossRefGoogle Scholar
Pauli, A. W. & Zech, A. C. (1964). Cold hardiness and amino acid content of water soluble proteins in crowns of winter wheat, (Triticum aestivum). Crop Sci. 4, 204–6.CrossRefGoogle Scholar
Peltier, G. L. & Tysdal, H. M. (1932). A method for the determination of comparative hardiness in seedling alfalfas by controlled hardening and artificial freezing. J. agric. Res. 44, 429–44.Google Scholar
Rogers, H. H. (1962). Rep. Pl. Breed. Inst. Camb. 1960–1, 71–3.Google Scholar
Smith, D. (1964). Winter injury and the survival of forage plants. Herb. Abstr. 34, 203–9.Google Scholar
Thomas, W. D. & Lazenby, A. (1968 a). Growth cabinet studies into cold tolerance of Festuca arundinacea populations. I. Effects of low temperature and defoliation. J. agric. Sci., Camb. 70, 339–45.CrossRefGoogle Scholar
Thomas, W. D. & Lazenby, A. (1968 b). Growth cabinet studies into cold tolerance of Festuca arundinacea populations. II. Responses to pretreatment conditioning and to number and duration of low temperature periods. J. agric. Sci., Camb. 70, 347–53.CrossRefGoogle Scholar
Zech, A. C. & Pauli, A. W. (1960). Cold resistance in three varieties of winter wheat as related to nitrogen fractions and total sugar. Agron. J. 52, 334–7.CrossRefGoogle Scholar
Zech, A. C. & Pauli, A. W. (1962). Changes in total free amino nitrogen, free amino acids and amides of winter wheat crowns during cold hardening and dehardening. Crop Sci. 2, 421–3.CrossRefGoogle Scholar