Insect resistance in potatoes: sources, evolutionary relationships, morphological and chemical defenses, and ecogeographical associations Kathy L. FlandersJohn G. HawkesFlorian I. Lauer OriginalPaper Pages: 83 - 111
Interrelationships of allozymes and ribosomal DNA alleles in wild barley M. A. Saghai MaroofQifa Zhang OriginalPaper Pages: 113 - 122
Enhanced leaf rust resistance in wheat conditioned by resistance gene pairs with Lr13 J. A. Kolmer OriginalPaper Pages: 123 - 130
Occurrence and chromosome number of Cucumis sativus var. hardwickii (Royle) Alef. in South India and its bearing on the origin of cultivated cucumber Philomena KuriachanS. Suhara Beevy OriginalPaper Pages: 131 - 133
New sources of nonspecific resistance to rust and common bacterial blight in dry bean landrace Pompadour Margaret T. MmbagaEladio Arnaud-SantanaDermot P. Coyne OriginalPaper Pages: 135 - 144
A database for a more efficient perennial ryegrass breeding programme C. RavelG. CharmetF. Balfourier OriginalPaper Pages: 145 - 151
Nuclear genetic control of variation in simazine tolerance in oilseed brassicas Geraldine M. McGuireN. Thurling OriginalPaper Pages: 153 - 160
Heterosis for leaf photosynthesis, grain yield and yield components in maize Harsh MehtaKumud Ranjan Sarkar OriginalPaper Pages: 161 - 168