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\hypersetup{pdftitle={Response to \textit{Rhizobium}"=clitoria Ternatea Combinations under Salt Stress Conditions in Tropical Ecosystems},pdfauthor={Raúl C. López Sánchez, Roeland Samson, Patrick van Damme, Bettina Eichler-Loebermann, Ernesto Gómez Padilla},pdfsubject={Tropentag 2010: Abstract},pdfkeywords={Legumes, nitrogen fixation, salt stress},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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\begin{center}
\Large{\textbf{Response to \textit{Rhizobium}"=clitoria Ternatea Combinations under Salt Stress Conditions in Tropical Ecosystems\footnote{\textbf{Contact Address:} Raúl C. López Sánchez, University of Granma, Faculty of Agricultural Sciences, Marti 4141 altos entre C.Montero  y J. Medina, 85100~Bayamo, Cuba, \mbox{e-mail}: \email{rlopezs@udg.co.cu}}\\[0.8ex]}}
\normalsize{\textsc{Raúl C. López Sánchez$^{1}$, Roeland Samson$^{2}$, Patrick van Damme$^{3}$, Bettina Eichler-Loebermann$^{4}$, Ernesto Gómez Padilla$^{5}$}}
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\begin{itemize*}
\item[]{\small{\textit{$^{1}$University of Granma, Faculty of Agricultural Sciences, Cuba}}}
\item[]{\small{\textit{$^{2}$University of Antwerp, Department of Bioscience Engineering, Belgium}}}
\item[]{\small{\textit{$^{3}$University of Ghent, Department of Plant  Production - Laboratory for Tropical Agronomy, Belgium}}}
\item[]{\small{\textit{$^{4}$University of Rostock, Faculty of Agricultural and Environmental Sciences, Germany}}}
\item[]{\small{\textit{$^{5}$University of Bayamo, Department  of Vegetable Biotechnology, Cuba}}}
\end{itemize*}
\index[author]{López Sánchez, Raúl C.}
\index[author]{Samson, Roeland}
\index[author]{van Damme, Patrick}
\index[author]{Eichler-Loebermann, Bettina}
\index[author]{Gómez Padilla, Ernesto}
\begin{center}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
Salinity is a major agricultural constraint, and is a significant problem in tropical ecosystems  because it affects some of the otherwise most productive agriculture areas. The response of Clitoria ternatea to inoculation with native isolates of \textit{Rhizobium} and commercial \textit{Rhizobium} strains was studied under salt stress. The study was carried out under semi controlled conditions in green$\lnot$house as well as under field conditions with salt soils (6300 ppm Nacl). The effect of three \textit{Rhizobium} strains: Jd19 (native isolate), 1031 and 1032 (commercial strains) were compared to controls (without mineral fertilisation and without inoculation) and mineral N fertilisation with respect to yields and nitrogen fixation parameters. Under semi controlled conditions, the best results for yields and nitrogen fixation parameters were found for the native strain of \textit{Rhizobium} (JD 19). In this treatment the highest root and shoot weights and N uptakes were found. Furthermore, the JD 19 treatment showed the highest K:Na ratio, the highest ureide contents, highest values of chlorophyll a and b in the shoot, and the best index of inoculation effectiveness. In the field experi$\lnot$ment the Jd 19 treatment had positive effects fielding compari$\lnot$son to other treatment groups.  The obtained results indicate the effectiveness of the inoculation of Clitorea ternatea specie  with effective rizobios to obtained  almost similar yields of dry matter to compare to the mineral fertilisation is used, on the other hand it is visible the variability in the inoculation response.  The results indicated that the Clitoria ternatea-Jd19 combination is a more efficient under salt stress conditions and is possible to introduce in wide scale in salt affected soils in Cuba.}

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\end{abstract}
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\noindent \textbf{Keywords:} Legumes, nitrogen fixation, salt stress
\index[key]{Legumes}
\index[key]{Nitrogen!fixation}
\index[key]{Salt!stress}
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