S.  Prabpai, L. Charerntanyarak, B. Siri and M.R. Moore…………………............................ 1
             Nature of  Clayey Natraqualfs on a Semi-Recent Terrace 
             under Tropical Savanna Climate
  N. Wongpokhom, I. Kheoruenromne,  A. Suddhiprakarn and R.J. Gilkes………………….…  9
             Smectite in  Selected Thai Paddy Soils
   N.  Prakongkep, A. Suddhiprakarn, I. Kheoruenromne  and R.J. Gilkes……………....…..... 27
             Morphology  and Distribution of Talaromyces flavus from Soil and Potential Use as a  
             Biological Control Agent against Plant Pathogenic Fungi
   T. Dethoup, L. Manoch, N. Visarathanonth, C. Chamswarng and A.  Kijjoa………….…..... 37
             Foliar Absorption of 45Ca Radioisotope Containing  Fertilizers 
             on Different Fruit Trees
   M.B. Hossain, K.S. Ryu, J.S.   Park and G.T. Kim…………………..……………….....…..... 51
             Effects  of Red Light on Growth, Photosynthesis and Food Reserves
             in Curcuma alismatifolia Gagnep
   A. Chidburee, W.  Bundittaya, C. Suwanthada, N. Ohtake,
     K. Sueyoshi, T. Ohyama and S. Ruamrungsri……………………………………………..  57
             Increased Efficacy  for Controlling Anthracnose of Chili Using Antifungal Metabolites from Mutant  Strains of Trichoderma harzianum
   W. Intana, T. Suwanno, C. Chamswarng 
     K. Chantrapromma and C. Ngamriabsakul…………………………….…........................ 65
             Evidence that ppsA in Xanthomonas axonopodis pv. glycines Affects 
             Carbon Utilization and Secretion of Virulence Factors
   S. Kasem, S. Prathuangwong,  and S. Tsuyumu……..…………………...…..........................  73 
             Polyploid Induction in Dendrobium  secundum (Bl.)Lindl. 
             by in vitro Techniques
   P.  Atichart and S. Bunnag……..…………….……...............................................................  91
             Comparison of Extraction Efficiency between  Winkler and Tullgren Extractors for Tropical Leaf Litter Macroarthropods
   W.  Sakchoowong, S.S. Nomura, K. Ogata and J. Chanpaisaeng……………………...….... 97