1. Evaluation of isozyme systems in Citrus to facilitate identification of fusion products

   • G. Ben-Hayyim
   • A. Shani
   • A. Vardi

   OriginalPaper Pages: 1 - 5

2. Book reviews

   • R. J. Campbell

   BookReview Pages: 6 - 6

3. Interaction of purified DNA with plant protoplasts of different cell cycle stage: The concept of a competent phase for plant cell transformation

   • A. R. Gould
   • S. E. Ashmore

   OriginalPaper Pages: 7 - 12

4. Identification and designation of telocentric chromosomes in barley by means of Giemsa N-banding technique

   • R. J. Singh
   • T. Tsuchiya

   OriginalPaper Pages: 13 - 24

5. Differences between genetic and physical centromere distances in the case of two genes for male sterility in barley

   • G. Künzel

   OriginalPaper Pages: 25 - 29

6. Book reviews

   • D. K. Belyaev
   • L. J. G. van der Maesen

   BookReview Pages: 30 - 30

7. Comparison of the chromosomes of Triticum timopheevi with related wheats using the techniques of C-banding and in situ hybridization

   • J. Hutchinson
   • T. E. Miller
   • K. W. Shepherd

   OriginalPaper Pages: 31 - 40

8. Combining ability estimates of sulfate uptake efficiency in maize

   • M. Motto
   • M. Saccomani
   • G. Cacco

   OriginalPaper Pages: 41 - 46

9. The effect of the r _a and r _b loci on the lipid content of the seed of Pisum sativum

   • D. T. Coxon
   • D. R. Davies

   OriginalPaper Pages: 47 - 50

10. Valine resistant plants derived from mutated haploid and diploid protoplasts of Nicotiana sylvestris and N. tabacum

    • R. Vunsh
    • D. Aviv
    • E. Galun

    OriginalPaper Pages: 51 - 58

11. Diallel analysis in groundnut (Arachis hypogaea L.)

    • A. S. Sangha
    • K. S. Labana

    OriginalPaper Pages: 59 - 63

12. Book reviews

    • P. E. Forhberger
    • A. Lundqvist

    BookReview Pages: 64 - 64

13. Heritability of fresh fruit bunch yield and its components in the oil palm (Elaeis guineensis, Jacq.)

    • I. O. Obisesan
    • T. Fatunla

    OriginalPaper Pages: 65 - 68

14. Effect of gametic disequilibrium on selection in an autotetraploid population

    • D. E. Rowe

    OriginalPaper Pages: 69 - 74

15. Genetics of the peroxidase isoenzymes in Petunia

    • B. M. van den Berg
    • T. Hendriks
    • H. J. W. Wijsman

    OriginalPaper Pages: 75 - 81

16. Book reviews

    • H. Stäber

    BookReview Pages: 82 - 82

17. Isolation and characterization of nitrate reductase-deficient mutants of Arabidopsis thaliana

    • F. J. Braaksma
    • W. J. Feenstra

    OriginalPaper Pages: 83 - 90

18. Some implications of a first-order model of inter-plant competition for the means and variances of complex mixtures

    • A. J. Wright

    OriginalPaper Pages: 91 - 96