Original Articles

The effect of temperature on the germination of six selected weed species

Published in: South African Journal of Plant and Soil
Volume 21 , issue 4 , 2004 , pages: 214–219

DOI: 10.1080/02571862.2004.10635052

Author(s): MarthaM. Manoto Department of Agriculture: Western Cape, Republic of South Africa , MI. Ferreira Department of Agriculture: Western Cape, Republic of South Africa , GA Agenbag Department of Agronomy, Republic of South Africa

Keywords: germination , temperature , tetrazolium , winter weeds

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Abstract

Field-collected seeds were incubated in a germination cabinet at three temperature regimes and germination percentage was determined after incubation. Species such as Arctotheca calendula, Avena fatua, Bromus diandrus and Raphanus raphanistrum germinated best when subjected to a diurnal temperature regime of 12h/12h at 10/15 °C, which correlates with late autumn to early winter temperatures in the Western Cape. Among the germinated weed species, A. fatua germinated most with a cumulative value of 90% as compared to R. raphanistrum which germinated least with a cumulative value of 12%.

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