Jayasinghe, C.K.; Wijesundera, R.L.C.(Rubber Research Institute:Agalawatta, 1999)
Cylindrocladium Quinqueseptatum Boedijn
Reitma causes seedling blight and extensive defoliation on a wide variety of plants and is widely distributed in the humid tropics.It is a serious pathogen of Eugenia caryophyllata ...
Jayasinghe, C.K.; Wijesundera, R.L.C.(Rubber Research Institute:Agalawatta, 1999)
Cylindrocladium quinqueseptatum causes leaf fall of clove in Sri Lanka and is responsible for the leaf spots of rubber in Malaysia.only one isolate (KP)from four pathogenic isolates examined secreted polygalacturanase(PG) ...
Seneviratna, P.; Witharana, L.P.P.; De Alwis, M.N.(Rubber Research Institute:Agalawatta, 1999)
Seed Production of rubber plantations in certain areas of Sri Lanka has gone down to very low levels affecting the quality of the planting material I.e.budded stump.An island wide survey was therefore conducted to gain ...
Ratnayake, U.; Makuuchi, K.; Yoshii, F.(Rubber Research Institute:Agalawatta, 1999)
Effect of polyvinyl alcohol(PVA)on extractable soluble protein content,and on mechanical and physical properties of radiation vulcanized natural rubber latex(RVNRL)was studied with the view of improving properties of RVNR ...
De Silva, K.G.K.; Karunanayake, L.; Muttukkrishnan, K.(Rubber Research Institute:Agalawatta, 1999)
The advantage s of using superior processing(SP)rubber in place of natural rubber (NR) in blends with NBR and NBR/PVC is discussed here in derail.various technological properties such as tensile,resilience,hardness,compression ...
Studies carried out on the use of Neutron Probe in soil/water relations indicate that this can be used as an effective technique in immature Hevea plantations. It had been possible to establish a fairly reliable calibration ...
Jayasinghe, C.K.; Wettasinghe, J.L.P.C.(Rubber Research Institute:Agalawatta, 1998)
Culture characteristics of Geotrichum sp. isolate IMI 354411, a fungus responsible for the saprophytic colonization on Hevea roots are described. It was also shown that this fungus could be easily distinguished from ...
Jayasinghe, C.K.; Wettasinghe, J.L.P.C.(Rubber Research Institute:Agalawatta, 1998)
Culture characteristics of Geotrichum sp. isolate IMI 354411, a fungus responsible for the saprophytic colonization on Hevea roots are described. It was also shown that this fungus could be easily distinguished from ...
Coffee may be planted either using seedlings or cuttings. Anyhow, a comparative study of their field establishment and performance has not been made. Iin this study seedlings and cuttings of Coffea canephora intercropped ...
Weerasuriya, S.M.; Yogaratnam, N.(Rubber Research Institute:Agalawatta, 1988)
The effect of potassium and magnisium fertilisers on growth of young Hevea brasiliensis were studied using clones PB 86, RRIC 100, RRIC 103, and RRIC 121 with the objective of determining the requirement of these elements ...
Margret, H.A.W.; Abeyasekera, S.; Jayasekera, N.E.M.(Rubber Research Institute:Agalawatta, 1988)
Four girth measurements collected over four years, before tapping from ten Hevea clones grown in two sites have been analysed to study the growth pattern. Year to year variation in both sites was mainly due t linear ...
Nugawela, A.; Aluthhewage, R.K.(Rubber Research Institute:Agalawatta, 1986)
Hevea trees when tapped exhibited a depression of girth increment and canopy growth. Hence a high growth rate is required to maintain the growth whilst giving a high yield. Growth parameters of 5 Hevea clonal buddings ...