EFS12- Book of abstracts - Contact
EFS12- Book of abstracts - Contact
EFS12- Book of abstracts - Contact
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SESSION 5: DISEASE CONTROL AND FORECASTING MODELS<br />
P114 - Effect <strong>of</strong> direct drilling on Fusarium foot and<br />
root rot in durum wheat, barley and oat in Tunisia<br />
S. Chekali 1 , S. Gargouri 2 , M. Ben Hamouda 3 , H. Cheihk M'Hamed 4 , B.<br />
Nasraoui 5<br />
1 Pôle Régional de Recherche et de Développement Agricoles du Nord-Ouest semi-aride à El Kef. B.P<br />
221 -7100 Le Kef, Tunisia; 2 Laboratoire de protection des végétaux, Institut national de la recherche<br />
agronomique de Tunisie, rue hédi karray 2049, Tunisia; 3 Laboratoire de physiologie végétale Ecole<br />
Supérieure d’Agriculture de Kef, 7119 Le Kef, Tunisia; 4 Laboratoire d’agronomie, Institut national de la<br />
recherche agronomique de Tunisie, rue hédi karray 2049, Tunisia; 5 Laboratoire de phytopathologie,<br />
Institut National Agronomique de Tunisie, 43 Avenue Charles Nicolle, Cité Mahrajène, 1082<br />
Belvédère-Tunis, Tunisia<br />
E-mail: samirachekali@yahoo.fr<br />
Conservation agriculture (CA) based on direct drilling (DD) emerged in Tunisia<br />
since 1999-2000 as an alternative to conventional agriculture (CA). Its main<br />
objective is to ensure yield stability and rebuilt the soil organic matter to control<br />
soil erosion. But, some previous works showed the risk <strong>of</strong> pathogens favored by<br />
conditions <strong>of</strong> permanent mulching. No previous work was done on CA/DD impact<br />
on Fusarium foot and root rot in Tunisia. The effect <strong>of</strong> DD on Fusarium foot and<br />
root rot incidence for durum wheat, oat and barley over three-year experience<br />
(2009/10, 2010/11, 2011/12) was studied in Northwest Tunisia. Roots and crown<br />
isolates, from the three straw cereals, revealed that Fusarium culmorum was the<br />
most observed pathogen. Disease incidences were determined by recovery<br />
frequency <strong>of</strong> this fungus. DD Increased significantly (P