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The existence of endophytes in cassava was suspected for the following reasons: (a) A wide range variation of root yield is frequent among disease-symptomless plants growing on the same plot; (b) root yield of low-yielding, virus-free plants of traditional clones can be increased by meristem cult...


Rivera, MFLaberry Saavedra, Rafael AlbertoLozano, J.C.[Evidences for endophytes parasiting traditional clones of cassava (Manihot esculenta Crantz)]Evidences for endophytes parasiting traditional clones of cassava (Manihot esculenta Crantz)

Recent investigations on cassava and its relationships with Pseudomonas fluorescens and P. putida have shown (a) Isolates with none or very mild inhibition of pathogenic bacteria and fungi; (b) isolates that strongly inhibit pathogenic bacteria, with none or very mild inhibition of fungi; (c) iso...


Lozano, J.C.Laberry Saavedra, Rafael Alberto[Biological control of cassava diseases using fluorescent pseudomonads]Biological control of cassava diseases using fluorescent pseudomonads

Lozano, J.C.Toro, Julio C.Castro Merino, A.Bellotti, Anthony C.[Produçao de material de plantio da mandioca]Produçao de material de plantio da mandioca

Information on some diseases and pests that attack cassava, as well as the symptoms induced by nutritional deficiencies and toxicities and damage resulting from the misuse of herbicides are given in this manual. Specific and general recommendations regarding the control of the described problems ...

En este manual se presenta informacion sobre algunas de las enfermedades y plagas que atacan a la yuca, como tambien los sintomas inducidos por deficiencias y toxicidades nutricionales y danos debidos al uso incorrecto de los herbicidas. Se incluyen recomendaciones generales y especificas para el...


Lozano, J.C.Bellotti, Anthony C.Reyes, J.A.Howeler, Reinhardt H.Leihner, D.E.Doll, J.[Field problems in cassava]Field problems in cassava

The symptoms caused in cassava by Scytalidium sp. and Diplodia manihotis are described and compared. NE Brazil and the northern coast and Valle del Cauca of Colombia are zones with appropriate ecological characteristics for an optimum disease development. Scytalidium sp. affected both roots and s...


Bejarano, C.A.Laberry, R.Orrego, A.Lozano, J.C.[La pudricion negra de la yuca (Manihot esculenta) causada por Scytalidium sp]La pudricion negra de la yuca (Manihot esculenta) causada por Scytalidium sp

Lozano, J.C.Toro, Julio C.Castro Merino, A.Bellotti, Anthony C.[Problemas relacionados con la "semilla" de la yuca (Manihot esculenta Crantz)]Problemas relacionados con la "semilla" de la yuca (Manihot esculenta Crantz)

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