1. Breeding for resistance to downy mildews and stalk rots in maize

   • S. Lal
   • I. S. Singh

   Review Pages: 111 - 119

2. Book review

   • G. J. de Klerk

   BookReview Pages: 120 - 120

3. Transmission genetics of the somatic hybridization process in Nicotiana

   • Yu. Gleba
   • N. N. Kolesnik
   • A. S. Parokonny

   Originals Pages: 121 - 128

4. Genetic divergence among thirty-one genotypes of toria (Brassica campestris L.) grown in twelve environments

   • D. Singh
   • P. K. Gupta

   Originals Pages: 129 - 131

5. Book reviews

   • B. Simpson
   • G. Schilling

   BookReview Pages: 132 - 132

6. Inheritance of seed yield and quality traits in peas (Pisum sativum L.)

   • K. R. Gupta
   • R. S. Waldia
   • D. R. Sood

   Originals Pages: 133 - 137

7. Book reviews

   • Th. Gladis
   • J. F. Jackson

   BookReview Pages: 138 - 138

8. Plant regeneration from in vitro culture of anthers of Solanum chacoense Bitt. and interspecific diploid hybrids S. tuberosum L. x S. chacoense Bitt.

   • M. Cappadocia
   • D. S. K. Cheng
   • R. Ludlum-Simonette

   Originals Pages: 139 - 143

9. Book reviews

   • U. Langridge
   • E. -M. Wiedenroth

   BookReview Pages: 144 - 144

10. Segregation of allozymes in megagametophytes of viable seed from a natural population of jack pine, Pinus banksiana Lamb.

    • W. M. Cheliak
    • K. Morgan
    • F. C. H. Yeh

    Originals Pages: 145 - 151

11. Allozyme variation and evolutionary relationships of grain amaranths (Amaranthus spp.)

    • H. Hauptli
    • S. Jain

    Originals Pages: 153 - 165

12. Chromosomal assignment of genes controlling salt-soluble proteins (albumins and globulins) in wheat and related species

    • P. Fra-Mon
    • G. Salcedo
    • F. García-Olmedo

    Originals Pages: 167 - 172

13. Reproductive systems in conifer seed orchards

    • G. Müller-Starck
    • M. Ziehe

    Originals Pages: 173 - 177

14. Estimates of gene frequencies in two heterotic maize populations

    • H. Singh
    • A. S. Khehra
    • B. S. Dhillon

    Originals Pages: 179 - 186

15. Maternal haploids of Petunia axillaris (Lam.) B.S.P. via culture of placenta attached ovules

    • J. W. DeVerna
    • G. B. Collins

    Originals Pages: 187 - 192

16. The meiotic pairing of nine wheat chromosomes

    • E. Ferrer
    • J. M. González
    • N. Jouve

    Originals Pages: 193 - 198

17. An improved method for dihaploid production in Nicotiana rustica through anther culture

    • M. K. U. Chowdhury

    Originals Pages: 199 - 204

18. The chromosomal locations of leaf peroxidase genes in hexaploid wheat, rye and barley

    • C. C. Ainsworth
    • H. M. Johnson
    • M. D. Gale

    Originals Pages: 205 - 210

19. Cytoplasmic DNA variation in a potato protoclonal population

    • R. J. Kemble
    • J. F. Shepard

    Originals Pages: 211 - 216

20. Variability, repeatability, character correlation and path coefficient analyses in yellow yam

    • M. O. Akoroda

    Originals Pages: 217 - 221