References
- BHATTACHARYA , M. and SAMADDAR , K. R. 1977 . Fungistasis, lysis and survival of Pyricularia oryzae and Helminthosporium oryzae in soil . Phytopathology Zeitschrift , 89 : 60 – 67 .
- BLAKEMAN , J. P. 1975 . Germination of Botrytis cinerea conidia in vitro in relation to nutrient conditions on leaf surfaces . Transactions of the British Mycological Socciety , 65 : 239 – 247 .
- CRAUFURD , R. Q. 1964 . The relationship between sowing date, latitude, yield and duration for rice (Oryza sativa L.) . Tropical Agriculture, Trinidad , 41 : 213 – 224 .
- DEIGHTON , F. C. 1956 . Diseases of Cultivated and Economic Plants In Sierra Leone , Margate, , UK : Eyre & Spottiswoode .
- FOMBA , S. N. 1984 . Rice disease situation in mangrove and associated swamps in Sierra Leone . Tropical Pest Management , 30 : 73 – 81 .
- FOMBA , S. N. 1987 . “ The ecological role of Cochliobolus miyabeanus (Ito et Kuribayashi) Drechsler ex Dastur in reducing rice yields in mangrove swamps of Sierra Leone ” . University of Sierra Leone . Ph.D. thesis
- FOMBA , S. N. and SINGH , N. 1990 . Crop losses caused by the rice brown spot disease in mangrove swamps of northwestern Sierra Leone . Tropical Pest Management , 36 : 387 – 393 .
- IRRI . 1980 . Standard Evaluation System for Rice , Los Banos, , Philippines : International Rice Research Institute .
- JONES , E. and DIXON , C. A. 1979 . An injection technique for nitrogen application on tidal and associated swamps . WARDA Technical Newsletter , 1 : 6 – 7 .
- JORDAN , H. D. 1965 . Rice in the economy of Sierra Leone . World Crops , 17 : 68 – 74 .
- KLOMP , A. O. 1977 . Early Senescence of Rice and Drechsler oryzae in the Wagenlngen Polder, Surinam , Wageningen : Centre for Agricultural Publishing and Documentation .
- KULKARNI , S. , RAMAKRISHNAN , K. and HEDGE , R. K. 1980 . Ecology, epidemiology and supervised control of rice brown leaf spot . International Rice Research Newsletter , 5 : 13 – 14 .
- LEACH , C. M. 1961 . The sporulation of Helminthosporium oryzae as affected by exposure to near ultraviolet radiations and periods . Canadian Journal of Botany , 39 : 705 – 715 .
- MUELLER , K. E. 1974 . Field Problems of Tropical Rice , Los Banos, , Philippines : International Rice Research Institute .
- NOTTEGHEM , J. L. and BAUDIN , P. 1981 . The Main Rice Diseases in West Africa , Monrovia : West Africa Rice Development Association .
- OU , S. H. 1985 . Rice Diseases , 2nd edn , Kew, , UK : CAB Commonwealth Mycological Institute .
- RANGASWAMI , G. and RAMALINGAM , M. 1962 . Survival of Helminthosporium oryzae in soil and its inhibition by Bacillus mycoides . Phytopathology , 52 : 347 – 351 .
- RAYMUNDO , S. A. 1980 . “ Diseases of Rice in Sierra Leone ” . In Technical Bulletin , Vol. 4 , Rokupr, , Sierra Leone : Rice Research Station .
- REIS , E. M. 1983 . A selective medium for isolating Cochliobolus sativus from soil . Plant Disease , 67 : 68 – 70 .
- SNEDECOR , G. W. and COCHRAN , W. G. 1967 . Statistical Methods , 6th ed , Ames, Iowa : Iowa State University Press .
- SPENCER , D. S. C. 1975 . The Economics of Rice in Sierra Leone 2: Mangrove Swamp , Department of Agricultural Economics and Extension, Njala University College, University of Sierra Leone .
- SWART , H. J. 1958 . An investigation of mycoflora in the soil of some mangrove swamps . Acta Botanica Neerlandica , 7 : 741 – 768 .
- VEERAJU , V. 1972 . A study of interaction between Helminthosporium oryzae and Bacillus megatarium var. phosphaticum . Indian Phytopathology , 24 : 735 – 739 .
- WARDA . 1983 . Special Project. Quinquennial Review Report‐February , Freetown, , Sierra Leone : West Africa Rice Development Association .
- Current addresses: Rice Research Station, Rokupr, P.M.B. 736, Freetown, Sierra Leone, and
- Current addresses: 23 Greenford Gardens, Greenford, Middlesex UB6 9LY, England.