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Stimulation of Germination of Seeds of Cowpea Witchweed (Striga gesnerioides) by Sodium Hypochlorite and Some Growth Regulators

Published online by Cambridge University Press:  12 June 2017

I. Igbinnosa  and
S.N.C. Okonkwo
I. Igbinnosa
Affiliation:
Plant Physiol., Bot. Dep., Univ. Nigeria, Nsukka
S.N.C. Okonkwo
Affiliation:
Plant Physiol., Bot. Dep., Univ. Nigeria, Nsukka
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Abstract

Tests with 18 growth regulators and chemicals revealed that the cytokinins [zeatin, kinetin, and 6-benzylaminopurine (BAP)], ethylene, and sodium hypochlorite stimulate germination of cowpea witchweed seeds at various concentrations. Witchweed seeds preconditioned in different concentrations of sodium hypochlorite for 3 wk had germination rates of 25 to 89% after incubation in distilled water, 10−5M solution of kinetin, 50 mg L−1 of 2-chloroethylphosphonic acid, and exudates from cowpea roots. Witchweed seeds preconditioned in distilled water and subsequently incubated in distilled water did not germinate.

Keywords

Cowpea witchweed, Striga gesnerioides (Willd.) Vatke # STRGEcowpea, Vigna unguiculata (L.) WalpHemiparasitic plants
Type
Weed Biology and Ecology
Information
Weed Science , Volume 40 , Issue 1 , March 1992 , pp. 25 - 28
Copyright
Copyright © 1992 by the Weed Science Society of America 

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References

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