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\hypersetup{pdftitle={ Variability of Saffron Yield by Climatic Factors in Northeast of Iran},pdfauthor={Hassan Feizi, Moin Tosan},pdfsubject={Tropentag 2016: Abstract},pdfkeywords={Climatic parameters, Saffron yield, Zoning},pdfpagemode=None,colorlinks=true}
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\parbox[b]{13.4cm}{\centering \large{\textbf{Tropentag, September 18-21, 2016, Vienna, Austria}}\\[1ex] \Large{``Solidarity in a competing world ---\\fair use of resources''\\[2ex]}}
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\Large{\textbf{ Variability of Saffron Yield by Climatic Factors in Northeast of Iran\footnote{\textbf{Contact Address:} Hassan Feizi, University of Torbat-e-heydarieh, Saffron Institute, Torbat-e-heydarieh, Iran, \mbox{e-mail}: \email{hasanfeizi@yahoo.com}}\\[0.8ex]}}
\normalsize{\textsc{Hassan Feizi$^{1}$, Moin Tosan$^{2}$}}
\end{center}
\begin{itemize*}
\item[]{\small{\textit{$^{1}$University of Torbat-e-heydarieh, Saffron Institute, Iran}}}
\item[]{\small{\textit{$^{2}$University of Torbat Heydarieh, Iran, Agricultural College, }}}
\end{itemize*}
\index[author]{Feizi, Hassan}
\index[author]{Tosan, Moin}
\begin{center}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
Nowadays, sustainability in agriculture is one of the most important sections in sustainable development. The main income in rural regions in Khorasan Razavi province in Iran is agricultural products especially saffron. The aim of the study was determining of some climatic factors on saffron yield over the 20 years ago in the some cities in Khorasan Razavi province where that have the highest cultivation area of saffron field. In this province saffron cultivation area is about \mbox{47000\,ha} and total stigma production is around 188 ton. In this study effect of climatological parameters on saffron yield was studied. Seven parameters (Mean temperature, Minimum temperature, Maximum temperature, daily temperature difference. Relative humidity, rainfall and sunlight) during 20 years in five cities including Torbat Heydarieh, Gonabad, Neyshaboor, Sabzevar and Ghoochan was used. The yield of saffron also in Jihad"=e Agriculture was achieved. For data analysing SPSS and GIS softwares were employed. Results indicated that saffron growth stages severely affected by climatic parameters especially temperature and sunlight during growth season. Also relative humidity and rainfall affected on saffron growth in dormant stage (July- August) of saffron. The most important factors for saffron production were temperature, rainfall, sunlight time and humidity respectively, in the most studied cities. Saffron yield was lower in northern regions of province and the highest in southern regions. The highest yield was found in the south of province that had semi arid weather conditions. Variability of mean saffron yield was from 2.87 to \unitfrac[4.32]{kg}{ha} in the different regions of province.}

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\noindent \textbf{Keywords:} Climatic parameters, Saffron yield, Zoning
\index[key]{Climatic parameters}
\index[key]{Saffron yield}
\index[key]{Zoning}
\end{document}
