1. The genetic structure of cocoa populations (Theobroma cacao. L.) revealed by RFLP analysis

   • J.A.K. N'Goran
   • V. Laurent
   • C. Lanaud

   OriginalPaper Pages: 83 - 90

2. Geographical patterns of morphological variation in sorghum (Sorghum bicolor (L.) Moench) germplasm from Ethiopia and Eritrea: Quantitative characters

   • Amsalu Ayana
   • Endashaw Bekele

   OriginalPaper Pages: 91 - 104

3. Linkage of random amplified polymorphic DNA markers to downy mildew resistance in cucumber (Cucumis sativus L.)

   • Thomas Horejsi
   • Jack E. Staub
   • Claude Thomas

   OriginalPaper Pages: 105 - 113

4. A skeletal linkage map of Hordeum bulbosum L. and comparative mapping with barley (H. vulgare L.)

   • B. Jaffé
   • P.D.S. Caligari
   • J.W. Snape

   OriginalPaper Pages: 115 - 120

5. A new powdery mildew resistance gene: Introgression from wild emmer into common wheat and RFLP-based mapping

   • J.K. Rong
   • E. Millet
   • M. Feldman

   OriginalPaper Pages: 121 - 126

6. Occurrence of self-compatibility, self-incompatibility and unilateral incompatibility after crossing diploid S. tuberosum (SI) with S. verrucosum (SC): I. Expression and inheritance of self-compatibility

   • Ronald Eijlander
   • Wendy ter Laak
   • Evert Jacobsen

   OriginalPaper Pages: 127 - 139

7. Evaluation of genetic variation in Lachenalia bulbifera (Hyacinthaceae) using RAPDs

   • Riana Kleynhans
   • Johan J. Spies

   OriginalPaper Pages: 141 - 147

8. Expression of mature plant resistance to Striga hermonthica in maize

   • V.O. Adetimirin
   • S.K. Kim
   • M.E. Aken'Ova

   OriginalPaper Pages: 149 - 158