Browsing by Author "Fernando, T.H.P.S."
Now showing 1 - 18 of 18
- Results Per Page
- Sort Options
Item Application technology:knapsack sprayers in the management of rubber nursery diseases(Rubber Research Institute:Agalawatta, 2010) Fernando, T.H.P.S.; Wijerathna, C.Item Coffee table book entitled:Corynespora leaf fall of Hevea rubber:the most threatening leaf disease in Asian and African continents(2009) Jayasinghe, C.K.; Fernando, T.H.P.S.Item A comparative study of Colletotrichum species causing anthracnose in Hevea(Rubber Research Institute:Agalawatta, 2009) Jayasinghe, C.K.; Fernando, T.H.P.S.; Jayawardana, N.Item A comparative study of Colletotrichum species causing anthracnose in Hevea(Rubber Research Institute. Agalawatta, 2009) Jayasinghe, C.K.; Fernando, T.H.P.S.; Jayawardana, N.Item Efficient management of Hevea diseases for sustainable and high productivity level(Rubber Research Institute of Sri Lanka:Agalawatta, 2009) Fernando, T.H.P.S.; Wijeratne, C.Item Evaluation of screening methods against Corynespora leaf fall disease of rubber(Hevea brasiliensis)(2010) Fernando, T.H.P.S.; Jayasinghe, C.K.; Wijesundera, R.L.C.; Silva, W.P.K.; Nishantha, E.A.D.N.Item First report of Colletotrichum acutatum on Mangifera indica in Sri Lanka(2009) Jayasinghe, C.K.; Fernando, T.H.P.S.Item Improvement of management strategy in combating Corynespora rubber leaf fall disease(2009) Jayasinghe, C.K.; Fernando, T.H.P.S.Item In vitro antagonism caused by some species of fungi on Rigidoporus lignosus(Rubber Research Institute. Agalawatte, 1996) Jayasuriya, K.E.; Deacon, J.W.; Fernando, T.H.P.S.Fungi potentially antagonistic to rigidoporus lignosus were isolated from a) by placing soil samples on agar plates previously colonized by R.lignosus, or on trichoderma selective agar and b) from basidiomycete fruit bodies in rubber plantations.Modes of action of potential antagonists against R. lignosus were evaluated by in vitro methods viz: production of volatile or non-volatile inhibitory compounds and ability to overgrow colonies of R. lignosus an agar. Some trichoderma spp. were strongly antagonistic to R. lignosus in most of the tests. T. longibrachiatum (isolate DZE10) completely inhibited R. lignosus an agar by producing volatile inhibitory metabolites. Trametes sp. producing volatile inhibitory metabolites. Trametes sp. (isolates ISO16 KIR8) antagonized R. lignosus on dual membered plates.Item Penta chloro phenol - effective and economical fungicide for the management of white root disease caused by Rigidoporus lignosus in Sri Lanka(Rubber Research Institute of Sri Lanka. Agalawatte, 1995) Jayasinghe, C.K.; Jayasuriya, K.E.; Fernando, T.H.P.S.Item Production of cell wall degrading enzymes by Corynespora cassiicola in culture and infected rubber tissue(Rubber Research Institute. Agalawatta, 1998) Jayasinghe, C.K.; Fernando, T.H.P.S.; Priyanka, U.M.S.All isolates of Corynespora cassiicola used in the investigation secreted pecin lyase when grown in liquid medium with pctin as the main source of carbon. However, none of the isolates secreted polygalacturonase in the same medium. The extracts of rubber tissue inoculated and infected with C. cassiicola also showed only pectin lyase activity. When grown in liquid medium with carboxymethyl cellulose as the main source of carbon all isolates secreted cellulases viz. cellobiase and a- glucosidase. The result of this study suggest that principal pectic enzyme involved in pathogenesis of the rubber isolates of C. cassiicola is pectin lyase and in the later stages cellulolytic enzymes possibly play a major roleItem Studies on the biology of the Hevea isolate of Colletotrichum acutatum(1999) Fernando, T.H.P.S.Item Susceptibility of different leaf stages of Hevea to Corynespora cassiicola(Rubber Research Institute. Agalawatta, 2010) Fernando, T.H.P.S.; Jayasinghe, C.K.; Wijesundera, R.L.C.; Siriwardena, D.Item Susceptibility of different leaf stages of Hevea to Corynespora cassiicola(Rubber Research Institute:Agalawatta, 2010) Fernando, T.H.P.S.; Jayasinghe, C.K.; Wijesundera, R.L.C.; Siriwardena, D.Item Variability of Hevea isolates of Corynespora cassiicola from Sri Lanka(2009) Fernando, T.H.P.S.; Jayasinghe, C.K.; Wijesundara, R.L.C.; Siriwardene, D.Item Weakening effect of 2-furaldehyde on Rigidoporus lignosus the cause of white root disease of rubber(Rubber Research Institute of Sri Lanka:Agalawatte, 1996) Jayasuriya, K.E.; Deacon, J.W.; Fernando, T.H.P.S.Furfuraldehyde is recognized as a potential fumigant which has the ability to weaken rigidoporus lignosus in artificially or naturally infected rubber root inocula. Addition of sulphur to soil at 100 g per 75 Kg of soil, inactivated or prevented the formation of R. lignosus mycelial cords from artificially or naturally infected inocula. Drenching 2.4 per cent aqueous solution of furfuraldehyde in to soil (1 liter/75 Kg) where R. lignosus inocula were buried, caused weakening or inactivation of R. lignosus in artificially or naturally infected inocula. However, combination of two treatments had no ssynergistic effect on both types of R. lignosus inocula in soil.Item Weakening effect of 2-furaldehyde on Rigidoporus lignosus the cause of white root disease of rubber(Rubber Research Institute of Sri Lanka. Agalawatte, 1996) Jayasuriya, K.E.; Deacon, J.W.; Fernando, T.H.P.S.Furfuraldehyde is recognized as a potential fumigant which has the ability to weaken rigidoporus lignosus in artificially or naturally infected rubber root inocula. Addition of sulphur to soil at 100 g per 75 Kg of soil, inactivated or prevented the formation of R. lignosus mycelial cords from artificially or naturally infected inocula. Drenching 2.4 per cent aqueous solution of furfuraldehyde in to soil (1 liter/75 Kg) where R. lignosus inocula were buried, caused weakening or inactivation of R. lignosus in artificially or naturally infected inocula. However, combination of two treatments had no ssynergistic effect on both types of R. lignosus inocula in soil.