Clubroot-resistance in turnips (Brassica campestris L.) F. WitM. Van De Weg OriginalPaper Pages: 9 - 18
Seasonal influences upon the pod weight of cacao and their consequences for selection J. Ruinard OriginalPaper Pages: 19 - 23
The use of insects for pollinating brassica crops in small isolation cages D. Wiering OriginalPaper Pages: 24 - 28
Chloroplast degeneration as a consequence of “hybrid necrosis” in wheat H. ToxopeusJ. G. Th. Hermsen OriginalPaper Pages: 29 - 32
Resistance conferred by new gene combinations to bacterial blight of cotton N. L. Innes OriginalPaper Pages: 33 - 43
A rapid modification of de Lautour's technique for grass leaf chromosomes Erna Bennett OriginalPaper Pages: 44 - 48
Cytogenetical studies of two amphidiploids in the genus Oryza R. GopalakrishnanN. M. NayarS. Sampath OriginalPaper Pages: 57 - 64
Theoretical studies on the methodological procedures of radiation breeding Yoshio Yoshida OriginalPaper Pages: 65 - 74
Genetical analysis of male-sterility in carrots, Daucus carota L. O. BangaJ. PetietJ. L. Van Bennekom ReviewPaper Pages: 75 - 93
Breeding research in sweet potato, Ipomoea batatas poir H. A. Van Rheenen OriginalPaper Pages: 94 - 99