1. Cytological mechanisms of 2n egg formation in a diploid genotype of Medicago sativa subsp. falcata

   • S. Tavoletti

   OriginalPaper Pages: 1 - 8

2. The response of Pisum sativum L. germplasm to high concentrations of soil boron

   • A. Bagheri
   • J. G. Paull
   • A. J. Rathjen

   OriginalPaper Pages: 9 - 17

3. Pod and seed development and phenotype of the M1 plants after pollination and fertilization with irradiated pollen in cacao (Theobroma cacao L.)

   • M. Falque

   OriginalPaper Pages: 19 - 25

4. Self-incompatibility as a pollination control mechanism for spring oilseed rape, Brassica napus L.

   • P. R. Banks
   • W. D. Beversdorf

   OriginalPaper Pages: 27 - 30

5. Developmental abnormalities in the ovule and embryo sac of ulluco (Ullucus tuberosus) and their effect on seed set

   • L. Pietilä
   • P. Jokela

   OriginalPaper Pages: 31 - 39

6. Genetic variation for nitrate content between cultivars of endive (Cichorium endiviae L.)

   • Kees Reinink
   • Marcel van Nes
   • Remmelt Groenwold

   OriginalPaper Pages: 41 - 48

7. Path analysis of genotype-environment interactions of potatoes exposed to increasing warm-climate constraints

   • George C. C. Tai
   • David Levy
   • Warren K. Coleman

   OriginalPaper Pages: 49 - 61

8. Resistance to soybean cyst nematode and molecular polymorphism in various sources of Peking soybean

   • H. T. Skorupska
   • I. S. Choi
   • W. C. Bridges

   OriginalPaper Pages: 63 - 70

9. Genetic variation in a Panicum coloratum L. population with a limited germplasm base

   • B. A. Young

   OriginalPaper Pages: 71 - 76

10. Factors determining the performance of synthetics in Vicia faba L. 1. Heterogeneity, heterozygosity, and degree of cross-fertilization

    • Wolfgang Link
    • Dieter Stelling
    • Erhard Ebmeyer

    OriginalPaper Pages: 77 - 84

11. Factors determining the performance of synthetics in Vicia faba L. 2. Syn-generation

    • Dieter Stelling
    • Wolfgang Link
    • Erhard Ebmeyer

    OriginalPaper Pages: 85 - 93

12. Efficient production of doubled haploid Brassica napus plants by colchicine treatment of microspores

    • C. Möllers
    • M. C. M. Iqbal
    • G. Röbbelen

    OriginalPaper Pages: 95 - 104

13. Analysis of disease resistance and quality characters of F₁ hybrids of crosses between wheat (Triticum aestivum) and spelt (Triticum spelta)

    • J. E. Schmid
    • M. Winzeler
    • H. Winzeler

    OriginalPaper Pages: 105 - 110

14. Association of isozyme markers with quantitative trait loci in random single seed descent derived lines of lentil (Lens culinaris Medik.)

    • M. Tahir
    • F. J. Muehlbauer
    • S. C. Spaeth

    OriginalPaper Pages: 111 - 119

15. Selection parameters for resistance to Fusarium oxysporum f. sp. cubense race 1 and race 4 on diploid banana (Musa acuminata Colla)

    • R. Morpurgo
    • S. V. Lopato
    • F. J. Novak

    OriginalPaper Pages: 121 - 129

16. Studies for assessing the influence of hardening on cold tolerance of barley genotypes

    • Fnlvia Rizza
    • Cristina Crosatti
    • Luigi Cattivelli

    OriginalPaper Pages: 131 - 138

17. Inheritance of a resistance specific to tomato spotted wilt tospovirus in Capsicum chinense ‘PI 159236’

    • L. S. Boiteux
    • A. C. de Ávila

    OriginalPaper Pages: 139 - 142

18. Isozyme variation in Ethiopian tetraploid wheat (Triticum turgidum) landrace agrotypes of different seed color groups

    • Seifu Tsegaye
    • Heiko C. Becker
    • Tesfaye Tesemma

    OriginalPaper Pages: 143 - 147

19. Construction of an image-based germplasm data base for Phaseolus spp.

    • Antonio Mincione
    • Edgardo Filippone
    • Luigi M. Monti

    OriginalPaper Pages: 149 - 159

20. Book announcements

    Announcement Pages: 161 - 162