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\hypersetup{pdftitle={Identifying Salt Tolerance Genotypes in Rapeseed Seedling Using Biplot Technique},pdfauthor={Arman Azari, Seyed Ali Mohammad Modarres-Sanavy, Hossein Askari, Faezeh Ghanati, Amir Mohammad Naji},pdfsubject={Tropentag 2010: Abstract},pdfkeywords={Biplot, Rape, salinity, Tolerance Index},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{Identifying Salt Tolerance Genotypes in Rapeseed Seedling Using Biplot Technique\footnote{\textbf{Contact Address:} Arman Azari, Faculty of Agriculture, Tarbiat Modares University, Department of Agronomy, 14115–336~Tehran, Iran, \mbox{e-mail}: \email{aazari@modares.ac.ir}}\\[0.8ex]}}
\normalsize{\textsc{Arman Azari$^{1}$, Seyed Ali Mohammad Modarres-Sanavy$^{2}$, Hossein Askari$^{3}$, Faezeh Ghanati$^{4}$, Amir Mohammad Naji$^{5}$}}
\end{center}
\begin{itemize*}
\item[]{\small{\textit{$^{1}$Faculty of Agriculture, Tarbiat Modares University, Department of Agronomy, Iran}}}
\item[]{\small{\textit{$^{2}$Tarbiat Modares University, Agronomy, Iran}}}
\item[]{\small{\textit{$^{3}$Faculty of Agricultural Biotechnology, Shahid Beheshti University, New Technology and Energy Engineering, }}}
\item[]{\small{\textit{$^{4}$Faculty of Science, Tarbiat Modares University, Department of Biology, Iran}}}
\item[]{\small{\textit{$^{5}$Faculty of Agriculture, Shahed University, Department of Crop Science and Plant Breeding, Iran}}}
\end{itemize*}
\index[author]{Azari, Arman}
\index[author]{Modarres-Sanavy, Seyed Ali Mohammad}
\index[author]{Askari, Hossein}
\index[author]{Ghanati, Faezeh}
\index[author]{Naji, Amir Mohammad}
\begin{center}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
Salt stress is one of the major factors limiting plant productivity. The ability of plants to survive under high"=salinity conditions is important for agriculture in saline region. The primary goal of a breeding programme is to identify superior genotypes evaluated on the basis of multiple traits. Several selection criteria have been proposed for selecting genotypes based on their performance in stress and non"=stress environments. Numerous methods have been used in the search for an understanding of the data patterns. Genotype main effect plus genotype by environment (GGE) biplot methodology was developed for graphical analysis for multi environment trial data, which simultaneously display the effects of genotypes and the environment. The purpose of this study was to detect salt resistant genotypes which are suitable for breeding programs. This evaluation was conducted based on resistance indices including Stress tolerance (TOL), mean productivity (MP), stress susceptibility index (SSI), stress tolerance index (STI), and geometric mean productivity (GMP) using biplot software. Greenhouse experiment was conducted to study the response of different rapeseed genotypes to salt stress and determine selection criteria of salt"=tolerant genotypes. Nineteen salt tolerant and salt sensitive rapeseed genotypes were grown at two environmental conditions including normal and saline soils (2 and 16 dS m$^{-1}$, respectively) in a factorial, randomised complete block design with three replications. Sampling was performed at the end of rosette stage. Based on results, CVRoby was selected as the most tolerant genotype and MP was selected as the most suitable resistance index to select tolerant varieties at rosette stage.}

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\noindent \textbf{Keywords:} Biplot, Rape, salinity, Tolerance Index
\index[key]{Biplot}
\index[key]{Rape}
\index[key]{Salinity}
\index[key]{Tolerance Index}
\end{document}