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\hypersetup{pdftitle={Impact of Organic and Inorganic Fertilisers on Growth, Fruit Yield, Nutritional and Lycopene Contents of Three Varieties of Tomatoes (\textit{Lycopersicon esculentum} (L.) Mill)},pdfauthor={Wasiu Akanbi, Amudalat Olaniyan, Biola Ojetayo, E.A.O.  Ilupejui},pdfsubject={Tropentag 2010: Abstract},pdfkeywords={Compost, inorganic fertilisers on yield, lycopene content, nutritional quality, tomato},pdfpagemode=None,colorlinks=true}
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\parbox[b]{13.4cm}{\centering \large{\textbf{Tropentag, September 14-16, 2010, Zurich}}\\[1ex] \Large{``World Food System  ---\\A Contribution from Europe''\\[2ex]}}
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\Large{\textbf{Impact of Organic and Inorganic Fertilisers on Growth, Fruit Yield, Nutritional and Lycopene Contents of Three Varieties of Tomatoes (\textit{Lycopersicon esculentum} (L.) Mill)\footnote{\textbf{Contact Address:} Wasiu Akanbi, Ladoke Akintola University of Technology, Department of Agronomy, Pmb 4000, NIGERIA~Ogbomoso, Nigeria, \mbox{e-mail}: \email{akanbiwasiu2001@yahoo.com}}\\[0.8ex]}}
\normalsize{\textsc{Wasiu Akanbi$^{1}$, Amudalat Olaniyan$^{2}$, Biola Ojetayo$^{1}$, E.A.O.  Ilupejui$^{1}$}}
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\begin{itemize*}
\item[]{\small{\textit{$^{1}$Ladoke Akintola University of Technology, Department of Agronomy, Nigeria}}}
\item[]{\small{\textit{$^{2}$University of Ibadan, Department of Agronomy, Nigeria}}}
\end{itemize*}
\index[author]{Akanbi, Wasiu}
\index[author]{Olaniyan, Amudalat}
\index[author]{Ojetayo, Biola}
\index[author]{Ilupejui, E.A.O. }
\begin{center}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
In field experiments, three varieties of tomato plants (Roma VF; Ogbomoso local and Califonia wonder) were grown to test whether different fertilisation regimes {\mbox{0\,\%} NPK or Tithonia compost (TC); \mbox{100\,\%} NPK fertiliser recommendation (i.e. \mbox{60\,kg} N /ha or \mbox{300\,kg} NPK 20--10-10); \mbox{100\,\%} of NPK equivalent quantity of TC; \mbox{75\,\%} NPK + \mbox{25\,\%} TC; \mbox{50\,\%} NPK + \mbox{50\,\%} TC and \mbox{25\,\%} NPK + \mbox{75\,\%} TC} affected growth, yield, nutritional and lycopene contents of the fruits. The experiment was a split plot in a randomised complete block design replicated three times. Data were collected on growth, reproductive parameters, fruit and seed physical and nutritional attributes. The fruit vitamin C and lycopene contents were also assessed. The data were subjected to analysis of variance to determine significant means. Correlations were run among parameters to test their association.   



Significant varietal differences were observed among the tomato varieties in terms of growth, fruit yield and nutritional attributes. The plant dry matter yield was highest (\unitfrac[38.5]{g}{plant})in Ogbomoso local and least in Roma VF (\unitfrac[18.0]{g}{plant}). Fruit yield obtained with Ogbomoso local was 45 and \mbox{56\,\%} higher than what was obtained from Roma VF and California wonder, respectively. With regard to the vitamin C content, Roma VF fertilised with \mbox{50\,\%} NPK + \mbox{50\,\%} TC gave the highest value which is 23 --- \mbox{67\,\%} higher than values obtained from the other treatment combinations. Irrespective of variety organically grown tomato contains higher content of lycopene. It was also observed that the higher the proportion of TC compost in the treatments the better the lycopene content. It could be concluded that the use of organic fertiliser has potential in improving the growth, fruit yield and nutritional contents of tomato fruits.



}

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\noindent \textbf{Keywords:} Compost, inorganic fertilisers on yield, lycopene content, nutritional quality, tomato
\index[key]{Compost}
\index[key]{Inorganic fertilizers on yield}
\index[key]{Lycopene content}
\index[key]{Nutritional quality}
\index[key]{Tomato}
\end{document}