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SEED TREATMENTS FOR ENHANCING GERMINATION OF WILD OKRA (Corchorus olitorius)

Published online by Cambridge University Press:  29 September 2003

P. VELEMPINI
Affiliation:
Botswana College of Agriculture, Private Bag 0027, Gaborone, Botswana
I. RIDDOCH
Affiliation:
Botswana College of Agriculture, Private Bag 0027, Gaborone, Botswana
N. BATISANI
Affiliation:
Botswana College of Agriculture, Private Bag 0027, Gaborone, Botswana

Abstract

The effects of different seed treatment methods and durations of exposure on germination of wild okra (Corchorus olitorius), a traditional leafy vegetable consumed in many parts of Africa, were investigated. Seeds were exposed to seven treatments (hot water at 80 °C, hot water at 100 °C, dry heat at 80 °C, dry heat at 100 °C, concentrated sulphuric acid, 10% hydrogen peroxide and water at room temperature) for periods of up to 30 minutes. Exposure for five to 15 minutes in hot water at 80 °C was the most effective treatment for enhancing germination (>90%), followed by five minutes in hot water at 100 °C (80%) and 30 minutes in sulphuric acid (57%). Other treatments were less effective. Soaking seeds in hot water at approximately 80 °C for about 10 minutes can be recommended, therefore, to farmers as a simple, cheap and very effective way of germinating wild okra.

Type
Research Article
Copyright
© Cambridge University Press 2003

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