Maize seedling emergence in response to climatic variability in a tropical rainforest area

<p>Environmental factors causing low seedling emergence often observed in tropical maize (Zea mays L.) are poorly documented. This study was conducted to investigate the effects of weather factors on maize seedling emergence at the Obafemi Awolowo University Teaching and Research Farm (OAU TRF...

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Autores principales:	Chris Adegoke FAYOSE, Morakinyo Abiodun Bamidele FAKOREDE
Formato:	article
Lenguaje:	EN SL
Publicado:	University of Ljubljana, Biotechnical Faculty 2021
Materias:	climatology crop phenology growth analysis seedling vigour zea mays l. Agriculture S
Acceso en línea:	https://doaj.org/article/35a3874c64e741689848854c4c52a2a5
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spelling	oai:doaj.org-article:35a3874c64e741689848854c4c52a2a52021-11-10T09:25:10ZMaize seedling emergence in response to climatic variability in a tropical rainforest area1581-91751854-194110.14720/aas.2021.117.2.2082https://doaj.org/article/35a3874c64e741689848854c4c52a2a52021-07-01T00:00:00Zhttp://ojs.aas.bf.uni-lj.si/index.php/AAS/article/view/2082https://doaj.org/toc/1581-9175https://doaj.org/toc/1854-1941<p>Environmental factors causing low seedling emergence often observed in tropical maize (Zea mays L.) are poorly documented. This study was conducted to investigate the effects of weather factors on maize seedling emergence at the Obafemi Awolowo University Teaching and Research Farm (OAU TRF). Five maize varieties sown weekly, in 3-replicate RCBD experiments throughout the 2016 and 2017 cropping seasons, were used to monitor emergence percentage (E %), emergence index (EI) and emergence rate index (ERI). Climatic data were obtained from the automatic weather station located on the farm. Analysis of variance revealed highly significant (P ≤ 0.01) environmental effect for all traits. Soil moisture (Sm), relative humidity, air temperature, heat unit and soil heat flux (SHF) showed significant (P ≤ 0.05) correlation coefficients with all traits, but there was no relationship between the emergence traits and grain yield. Stepwise multiple regression and sequential path coefficient analyses indicated that increased Sm, rather than rainfall per se, increased the speed of emergence. Minimum air temperature and SHF with direct effects, and heat unit with indirect effect, negatively affected emergence the most. Relatively low Tmin and SHF, along with just enough Sm maximized seedling emergence in the rainforest agro-ecology of southwestern Nigeria.</p>Chris Adegoke FAYOSEMorakinyo Abiodun Bamidele FAKOREDEUniversity of Ljubljana, Biotechnical Facultyarticleclimatologycrop phenologygrowth analysisseedling vigourzea mays l.AgricultureSENSLActa Agriculturae Slovenica, Vol 117, Iss 2, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN SL
topic	climatology crop phenology growth analysis seedling vigour zea mays l. Agriculture S
spellingShingle	climatology crop phenology growth analysis seedling vigour zea mays l. Agriculture S Chris Adegoke FAYOSE Morakinyo Abiodun Bamidele FAKOREDE Maize seedling emergence in response to climatic variability in a tropical rainforest area
description	<p>Environmental factors causing low seedling emergence often observed in tropical maize (Zea mays L.) are poorly documented. This study was conducted to investigate the effects of weather factors on maize seedling emergence at the Obafemi Awolowo University Teaching and Research Farm (OAU TRF). Five maize varieties sown weekly, in 3-replicate RCBD experiments throughout the 2016 and 2017 cropping seasons, were used to monitor emergence percentage (E %), emergence index (EI) and emergence rate index (ERI). Climatic data were obtained from the automatic weather station located on the farm. Analysis of variance revealed highly significant (P ≤ 0.01) environmental effect for all traits. Soil moisture (Sm), relative humidity, air temperature, heat unit and soil heat flux (SHF) showed significant (P ≤ 0.05) correlation coefficients with all traits, but there was no relationship between the emergence traits and grain yield. Stepwise multiple regression and sequential path coefficient analyses indicated that increased Sm, rather than rainfall per se, increased the speed of emergence. Minimum air temperature and SHF with direct effects, and heat unit with indirect effect, negatively affected emergence the most. Relatively low Tmin and SHF, along with just enough Sm maximized seedling emergence in the rainforest agro-ecology of southwestern Nigeria.</p>
format	article
author	Chris Adegoke FAYOSE Morakinyo Abiodun Bamidele FAKOREDE
author_facet	Chris Adegoke FAYOSE Morakinyo Abiodun Bamidele FAKOREDE
author_sort	Chris Adegoke FAYOSE
title	Maize seedling emergence in response to climatic variability in a tropical rainforest area
title_short	Maize seedling emergence in response to climatic variability in a tropical rainforest area
title_full	Maize seedling emergence in response to climatic variability in a tropical rainforest area
title_fullStr	Maize seedling emergence in response to climatic variability in a tropical rainforest area
title_full_unstemmed	Maize seedling emergence in response to climatic variability in a tropical rainforest area
title_sort	maize seedling emergence in response to climatic variability in a tropical rainforest area
publisher	University of Ljubljana, Biotechnical Faculty
publishDate	2021
url	https://doaj.org/article/35a3874c64e741689848854c4c52a2a5
work_keys_str_mv	AT chrisadegokefayose maizeseedlingemergenceinresponsetoclimaticvariabilityinatropicalrainforestarea AT morakinyoabiodunbamidelefakorede maizeseedlingemergenceinresponsetoclimaticvariabilityinatropicalrainforestarea
_version_	1718440090202537984

Maize seedling emergence in response to climatic variability in a tropical rainforest area

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