Development and growth of some agricultural species on a subantarctic island

Aitken, Yvonne; Smith, Ronald I.L.. 1976 Development and growth of some agricultural species on a subantarctic island. The Journal of Applied Ecology, 13 (1). 217-224. https://doi.org/10.2307/2401941

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Official URL: http://dx.doi.org/10.2307/2401941

Abstract/Summary

(1) Six annual agricultural species were grown in summer at South Georgia (54⚬S) and in the winter-spring growing season at Melbourne (38⚬S). (2) The mean daily air temperature at South Georgia was 5⚬ C (slightly higher at plant level) compared with about 10⚬ C at Melbourne. (3) Day-neutral cultivars of pea and barley flowered at South Georgia ten days later than at Melbourne. Day-sensitive cultivars of rye and ryegrass flowered about ten days earlier than at Melbourne. All species failed to set seed at South Georgia. (4) All species grew more slowly at South Georgia, despite the higher daily radiation. We conclude that this was due to both lower temperatures and lower soil fertility. (5) Of the species tested, rye grew most at South Georgia, compared with growth at Melbourne, and subterranean clover grew least.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.2307/2401941
ISSN:	00218901
Date made live:	29 Oct 2019 09:01 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/525628

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.2307/2401941

ISSN:

00218901

Date made live:

29 Oct 2019 09:01 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/525628