25 research outputs found
Evaluasi Kriteria Kesesuaian Sistem Perkebunan Karet Di Daerah Kerinci Dan Sekitarnya Evaluation of Suitability Criteria for the Rubber Plantation System in Kerinci and Its Surrounding Area
Identification of land characteristics to evaluate the rubber plantation system was carried out at the Kerinci and its surrounding area, Riau from May 2002 up to October 2003. The objectives of this research were to identify land characteristics of plantation system influencing its production and benefit value, and to compile criteria of site specific. Location was identified by the Land-sat 7 ETM+ band 347
RGB designed in the land use utilization type (LUT): garden and estate. In each LUT it was done by measurement of land characteristics, cost the inputs, and price the benefits. The land characteristics were evaluated by parametric method; the benefit value was calculated by benefit-cost ratio (BCR); the suitability criteria of site specific were compiled by cluster analysis. The results showed that the
production suitability criteria were (kg wet rubber/ha/yr): I (2,062.28-2,099.56); II (1,523.44-2,062.28); III (996.88-1,523.44); IV (933.13-996.88), the economic suitability criteria were (BCR): I (2.44-2.58); II (1.83-2.44); III (1.51-1.83); IV (1.32-1.51), and would be determined by drainage, base saturation, exchangeable Al, and organic-C. These criteria could be used for evaluating suitability of the
rubber plantation system at the Kerinci and its surrounding area
Abstracts of papers presented at an international workshop on management of soilborne pathogens sponsored by the United States-Israel binational agricultural research and development fund (bard): March 1-5,1998 Ramat Rachel, Jerusalem, Israel
Identification and Frequency of Ascochyta Diseases of Green and Dry Peas in Morocco
A survey of incidence and severity of Ascochyta diseases on peas in
Morocco was carried out in 1992. All the three Ascochyta species of
peas are found in the country. Their incidence and severity were higher
on the green peas than on the dry peas. This is mainly due to the dry
conditions prevailing during the dry pea growing season. Ascochyta pisi
Lib. was isolated only from leaves and stem, Mycosphaerella pinodes
(Berk. and Blot) Vestergr. more frequently from the leaves and stem
than from the foot region, and Phoma medicagini var. pinodella
(Jones) Boerema mainly from the foot regio
Évaluation de la résistance du palmier dattier au bayoud causé par Fusarium oxysporum f sp albedinis. Recherche d'une méthode de discrimination des vitroplants acclimatés en serre
Dans le programme de sélection du palmier dattier mené au Maroc contre le bayoud, les clones sélectionnés en palmeraie ou par croisements contrôlés ne sont représentés que par un seul à quelques individus. Les clones retenus de bonne qualité fruitière sont présumés résistants. Les tests de confirmation de leur résistance doivent être réalisés au stade plantule sur un nombre suffisant de vitroplants conformes et acclimatés en serre ; d'où la nécessité de mettre au point une méthode fiable de discrimination de ce type de matériel. À partir d'un isolat de Fusarium oxysporum f sp albedinis très agressif, et après comparaison de différentes concentrations d'inoculum du parasite, les concentrations d'inoculum 104 et 10 5 conidies par ml ont permis de discriminer les génotypes résistants et sensible à la maladie. Parmi 5 méthodes d'inoculation, la plus fiable consiste à apporter par plant 20 ml de cet inoculum liquide (10 5 spores/ml) sur les racines de vitroplants élevés dans des sachets de polyéthylène, dénudées jusqu'à une profondeur de 5 cm.Evaluation of date palm resistance to bayoud disease due to Fusarium oxysporum f sp albedinis. Development of an efficient method for discriminating in vitro plantlets acclimatised in the glasshouse. In the Moroccan breeding program of the date palm to control bayoud disease, the clones selected in date palm groves from seedlings or by controlled breeding are only represented by one or few individuals. The clones selected on the criterion of fruit quality are presumed to be resistant to bayoud disease. The confirmation of resistance tests require a sufficient number of the identical in vitro plantlets in early stages and acclimatised in glasshouse. Consequently, it is necessary to develop an appropriate method for discriminating these plantlets. With a very agressive isolate of Fusarium oxysporum f sp albedinis and after comparison of different inoculum concentrations of the pathogen, the 2 inoculum concentrations 104 and 10 5 conidia per ml allowed us to distinguish between the resistant and susceptible genotypes. Of 5 inoculation methods, the best was to apply 20 ml per plant of such a liquid inoculum (10 5 spores/ml) to the roots of the plantlets at a depth of 5 cm
Caracterisation des niveaux de receptivite des sols de palmeraie marocaine aux fusarioses vasculaires, en particulier le bayoud
National audienc
Suppressiveness of some moroccan date palm grove soils to Fusarium wilts, particularly the bayoud disease
International audienc
Influence du potentiel osmotique de Äľeau sur la croissance de Fusarium oxysporum f. sp. lycopersici et de Verticillium dahliae
Hémorragie méningée et hématome parenchymateux révélant une thrombose veineuse cérébrale
La thrombophlébite cérébrale (TVC) est une cause non négligeable des accidents vasculaires cérébraux avec une grande diversité de leur présentation Clinique source d'errance et de retard thérapeutique. Nous rapportons l'observation d'une patiente présentant une TVC révélée par une hémorragie méningée. Le diagnostic a été suspecté à l'artériographie réalisée dans le cadre du bilan étiologique et thérapeutique de l'hémorragie méningée et confirmé par la suite sur l'angio-scanner. La particularité de cette observation est la difficulté aussi bien diagnostique de la TVC et sa révélation par une hémorragie méningée, que thérapeutique concernant l'utilisation des anticoagulants