Browsing by Author "Jayaratne, A.H.R."
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Item Corynespora leaf spot disease of rubber (Hevea brasiliensis) - a new record(Rubber Research Institute. Agalawatta, 1986) Liyanage,. A De S.; Jayasinghe, C.K.; Liyanage, N.I.S.; Jayaratne, A.H.R.Item Corynespora leaf spot disease of rubber (Hevea brasiliensis) - a new record(Rubber Research Institute of Sri Lanka:Agalawatta, 1986) Liyanage, A. De S.; Jayasinghe, C.K.; Liyanage, N.I.S.; Jayaratne, A.H.R.Item Effect of vesicular-arbuscular mycorrhizae on seedling of Hevea and Pueraria phaseoloides(Rubber research Institute. Agalawatte, 1984) Jayaratne, A.H.R.; Peries, O.S.; Waidyanatha, U.P. De S.Hevea seedlings showed a slight growth responce when inculated with Gigaspora margarita out of four species, tested in sterilised soil. There were no significant differences in the uptake of nutrient by mycorrhizal Hevea plants. Non-mycorrhizal Pueraria plants grew very poorly unless they were given liberal quantities of phosphate fertilizer, confirming previous reparts. All mycorrhizal plants took up more nutrients from soil than non-mycorrhizal plants. Effective nodule formation wassignificantly grater in mycorrhizal plants when phosphorus was added.Item Endomycorrhizas of rubber growing soils of Sri Lanka(Rubber Research Institute of Sri Lanka. Agalawaththa, 1982) Jayaratne, A.H.R.Item The endomycorrhizas of rubber growing soils of Sri Lanka and their effect on plant growth(1983) Jayaratne, A.H.R.Item Phytophthora epidemics - possibility of management using resistant clones(Rubber Research Institute of Sri Lanka. Agalawatte, 1996) Jayasinghe, C.K.; Jayaratne, A.H.R.