1. A single grain screening technique for breeding alkylresorcinol-poor rye

   • F. Hoffmann
   • G. Wenzel

   OriginalPaper Pages: 1 - 2

2. Growth and cold hardiness of intervarietal hybrids of douglas-fir

   • G. E. Rehfeldt

   OriginalPaper Pages: 3 - 15

3. Ultraviolet irradiation of maize (Zea Mays L.) pollen grains

   • P. L. Pfahler
   • H. F. Linskens

   OriginalPaper Pages: 17 - 21

4. Non-additive gene effects for creeping-root in lucerne (Medicago sativa L.)

   • H. Daday
   • A. Grassia
   • F. E. Binet

   OriginalPaper Pages: 23 - 27

5. Book reviews

   • U. Wolf
   • H. F. Linskens

   BookReview Pages: 28 - 28

6. Estimates of general combining ability in Hevea breeding at the Rubber Research Institute of Malaysia

   • H. Tan

   OriginalPaper Pages: 29 - 34

7. Genetic relationships among three chlorophyll-deficient mutants in peanut, Arachis hypogaea L.

   • P. Y. P. Tai
   • R. O. Hammons
   • R. S. Matlock

   OriginalPaper Pages: 35 - 40

8. A diallel cross analysis of gum content in barley (Hordeum vulgare)

   • D. C. Greenberg

   OriginalPaper Pages: 41 - 46

9. Glutamate oxaloacetate transaminase isozymes of the Triticinae: dissociation and recombination of subunits

   • G. E. Hart
   • P. J. Langston

   OriginalPaper Pages: 47 - 51

10. Book reviews

    • H. F. Linskens
    • P. Hanelt

    BookReview Pages: 52 - 52

11. The influence of paternal species on the origin of callus in anther culture of Solanum hybrids

    • P. W. Simon
    • S. J. Peloquin

    OriginalPaper Pages: 53 - 56