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\hypersetup{pdftitle={Agressiveness of Curtobacterium Flaccumfaciens Pv. Flaccumfaciens and Genotype Resistance of Common Bean in Brazil},pdfauthor={Adriane Wendland, Stella Cristina Dias Valdo, LEILA GARCÊS ARAÚJO, Enderson Ferreira, Leonardo Cunha Melo, Helton Santos Pereira},pdfsubject={Tropentag 2016: Abstract},pdfkeywords={Disease, plant breeding, pulses, sustainability},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{Agressiveness of Curtobacterium Flaccumfaciens Pv. Flaccumfaciens and Genotype Resistance of Common Bean in Brazil\footnote{\textbf{Contact Address:} Adriane Wendland, Embrapa Rice and Beans, Plant Pathology, , \mbox{e-mail}: \email{adriane.wendland@embrapa.br}}\\[0.8ex]}}
\normalsize{\textsc{Adriane Wendland$^{1}$, Stella Cristina Dias Valdo$^{2}$, LEILA GARCÊS ARAÚJO$^{3}$, Enderson Ferreira$^{4}$, Leonardo Cunha Melo$^{5}$, Helton Santos Pereira$^{6}$}}
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\begin{itemize*}
\item[]{\small{\textit{$^{1}$Embrapa Rice and Beans, Plant Pathology, }}}
\item[]{\small{\textit{$^{2}$Federal University of Goias, Genetic and Plant Breeding, }}}
\item[]{\small{\textit{$^{3}$Federal University of Goias, Genetics, Brazil}}}
\item[]{\small{\textit{$^{4}$Brazilian Agricultural Research Corporation (EMBRAPA), National Rice and Beans Research Center (CNPAF), Brazil}}}
\item[]{\small{\textit{$^{5}$Brazilian Agricultural Research Corporation (Embrapa), National Rice and Bean Research Center (CNPAF), Brazil}}}
\item[]{\small{\textit{$^{6}$Brazilian Agricultural Research Corporation (EMBRAPA), Embrapa Arroz e Feijão, Brazil}}}
\end{itemize*}
\index[author]{Wendland, Adriane}
\index[author]{Valdo, Stella Cristina Dias}
\index[author]{ARAÚJO, LEILA GARCÊS}
\index[author]{Ferreira, Enderson}
\index[author]{Cunha Melo, Leonardo}
\index[author]{Pereira, Helton Santos}
\begin{center}
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\textbf{Abstract}
\begin{abstract}
\normalsize{
Bacterial wilt caused by Curtobacterium flaccumfaciens pv. flaccumfaciens (Cff) ranks first in order of economic importance. It reduces grain yield by colonizing xylem vessels impeding the translocation of water and nutrients to the shoot of the plant. Genetic resistance is the most efficient and cheapest way to control this disease in common bean. To obtain resistant cultivars, a breeding programme must consider pathogenic variability, genetic control over pathogen resistance and, methods of evaluating resistant genotypes. The objective of this work was to identify different levels of aggressiveness of Cff isolates, and horizontal/vertical resistance of common bean genotypes. The isolates were classified into four aggressiveness groups and the most aggressive isolates were BRM 14939 and BRM 14942, that cause further reduction in height, differing from the control (non"=inoculated plants). Plants inoculated with these isolates showed all symptoms evaluated and higher intensity of disease. It was observed variation in plant height according to the used isolate. In contrast, the less aggressive ones were BRM 14941 and BRM 14946, resulting in plants with lower intensity of disease and symptoms of wilt and flaccidity were more frequent. The genotypes IPA 9, Ouro Branco and Michelite were selected as more resistant against the tested isolates. The genotypes Coquinho, BRS Cometa, CNFP 10104, BRS Requinte, and A211 showed horizontal resistance and the genotypes IPA 9, Ouro Branco, Michelite, BRS Requinte and TU genotypes showed specific resistance to the major isolates of the pathogen that causes bacterial wilt. In contrast, TO, Cornell 49242, IAC Carioca Pyatã, Uirapuru, IPA 7419, PI 207 262, Widusa, IPA 6, Pérola, BAT 477, BRS Esplendor, CNFC 10408, BRS Estilo, Vermelho, BRS Campeiro, IAC Carioca Aruã, AND 277, IAC Carioca Akytã, and IPA 1 genotypes did not show horizontal resistance against the evaluated isolates. The BRS Cometa, A 211, Coquinho, CNFP 10104, CNFRS 11997 and Frijólica 0--3-1 are highly susceptible to bacterial wilt.}

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\noindent \textbf{Keywords:} Disease, plant breeding, pulses, sustainability
\index[key]{Disease}
\index[key]{Plant!breeding}
\index[key]{Pulses}
\index[key]{Sustainability}
\end{document}
