Seasonal and diurnal changes of two leaf pathogens of Rubber (Hevea brasiliensis Muell. Arg.) in the air of Iyanomo, Nigeria

Seasonal and diurnal changes of two leaf pathogens of Rubber (Hevea brasiliensis Muell. Arg.) in the air of Iyanomo, Nigeria

Air spore concentrations of Drechslera hevea Petch and Colletotrichum gloesporoides Penz were studied in a rubber nursery, over a 12-months period, from March 1976 to February 1977, using both the exposed nutrient medium technique and Rotorod samplers. Both methods showed seasonal changes in the spo...

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Main Author: J. A. Okhuoya
Format: Article
Language:English
Published: Polish Botanical Society 2014-08-01
Series:Acta Mycologica
Online Access:https://pbsociety.org.pl/journals/index.php/am/article/view/3979
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spelling doaj-b73273477d40473fb9ba8c798f7efb6a2021-04-02T19:48:58ZengPolish Botanical SocietyActa Mycologica2353-074X2014-08-01221657110.5586/am.1986.0073319Seasonal and diurnal changes of two leaf pathogens of Rubber (Hevea brasiliensis Muell. Arg.) in the air of Iyanomo, NigeriaJ. A. Okhuoya0Rubber Research Institute of NigeriaAir spore concentrations of Drechslera hevea Petch and Colletotrichum gloesporoides Penz were studied in a rubber nursery, over a 12-months period, from March 1976 to February 1977, using both the exposed nutrient medium technique and Rotorod samplers. Both methods showed seasonal changes in the spore concentrations of these organisms throughout the year. The spore concentrations of D. hevea were consistently higher than those of C. gloeosporoides. The highest spore concentrations were recorded in February and August for D. hevea and C. gloeosporoides respectively. In both cases there were diurnal fluctuations, with peaks occurring between 12.00h and 14.00h. The effect of environmental factors on these changes in discussed.https://pbsociety.org.pl/journals/index.php/am/article/view/3979
collection DOAJ
language English
format Article
sources DOAJ
author J. A. Okhuoya
spellingShingle J. A. Okhuoya
Seasonal and diurnal changes of two leaf pathogens of Rubber (Hevea brasiliensis Muell. Arg.) in the air of Iyanomo, Nigeria
Acta Mycologica
author_facet J. A. Okhuoya
author_sort J. A. Okhuoya
title Seasonal and diurnal changes of two leaf pathogens of Rubber (Hevea brasiliensis Muell. Arg.) in the air of Iyanomo, Nigeria
title_short Seasonal and diurnal changes of two leaf pathogens of Rubber (Hevea brasiliensis Muell. Arg.) in the air of Iyanomo, Nigeria
title_full Seasonal and diurnal changes of two leaf pathogens of Rubber (Hevea brasiliensis Muell. Arg.) in the air of Iyanomo, Nigeria
title_fullStr Seasonal and diurnal changes of two leaf pathogens of Rubber (Hevea brasiliensis Muell. Arg.) in the air of Iyanomo, Nigeria
title_full_unstemmed Seasonal and diurnal changes of two leaf pathogens of Rubber (Hevea brasiliensis Muell. Arg.) in the air of Iyanomo, Nigeria
title_sort seasonal and diurnal changes of two leaf pathogens of rubber (hevea brasiliensis muell. arg.) in the air of iyanomo, nigeria
publisher Polish Botanical Society
series Acta Mycologica
issn 2353-074X
publishDate 2014-08-01
description Air spore concentrations of Drechslera hevea Petch and Colletotrichum gloesporoides Penz were studied in a rubber nursery, over a 12-months period, from March 1976 to February 1977, using both the exposed nutrient medium technique and Rotorod samplers. Both methods showed seasonal changes in the spore concentrations of these organisms throughout the year. The spore concentrations of D. hevea were consistently higher than those of C. gloeosporoides. The highest spore concentrations were recorded in February and August for D. hevea and C. gloeosporoides respectively. In both cases there were diurnal fluctuations, with peaks occurring between 12.00h and 14.00h. The effect of environmental factors on these changes in discussed.
url https://pbsociety.org.pl/journals/index.php/am/article/view/3979
work_keys_str_mv AT jaokhuoya seasonalanddiurnalchangesoftwoleafpathogensofrubberheveabrasiliensismuellargintheairofiyanomonigeria
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