Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/2372
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dc.contributor.authorDzomeku, Israel K.-
dc.contributor.authorMurdoch, A.J.-
dc.date.accessioned2019-06-17T12:43:48Z-
dc.date.available2019-06-17T12:43:48Z-
dc.date.issued2007-
dc.identifier.issn18125379-
dc.identifier.urihttp://hdl.handle.net/123456789/2372-
dc.description.abstractThe impact of environment on the germination biology of Striga hermonthica was studied in the laboratory by conditioning seeds at various water potentials and urea concentrations at 17.5 to 37.5°C for up to 133 days. The experimental results presented in this research are related to the effects of temperature, water potential and urea nitrogen concentration during conditioning on subsequent germination percentage of S. hermonthica. Maximum germination in S. hermonthica seeds was observed at conditioning temperatures of 20 to 25°C within the range investigated of 17.5 to 37.5°C. Water stress and also urea during conditioning suppressed maximum germination. However, the conditioning temperature ranges at which maximum germination percentages occur vary with water stress and also urea concentration. In the presence of a high concentration of urea (3.16 mM), temperatures required for maximum germination narrowed to between 17.5 to 20°C. The optimum period of conditioning decreased with increase in water stress and also urea concentration similar to previous reports. The implications of these findings on Striga hermonthica field infestations have been investigated and being reported in another paper. Germination was greatly suppressed by conditioning environments including 3.16 mM urea and at 37.5°C. At the high concentration of 3.16 mM, temperatures required for maximum germination narrowed to between 17.5 and 20°C. Optimum conditioning period decreased with water stress and with increase in urea concentration.en_US
dc.language.isoenen_US
dc.publisherAsia Network for scientific Informationen_US
dc.relation.ispartofseriesVol 6;Issue 1-
dc.subjectStriga Hermonthicaen_US
dc.subjectGerminationen_US
dc.subjectTemperatureen_US
dc.subjectWater Potentialen_US
dc.subjectUrea Nitrogenen_US
dc.titleEFFECTS OF PROLONGED CONDITIONING ON DORMANCY AND GERMINATION OF STRIGA HERMONTHICALen_US
dc.typeArticleen_US
Appears in Collections:Faculty of Agriculture, Food and Consumer Sciences

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