Somatic chromosome elimination and meiotic chromosome pairing in the triple hybrid 6x-(Solanum acaule × S. bulbocastanum) × 2×-S. phureja M. S. RamannaJ. G. Th. Hermsen OriginalPaper Pages: 470 - 481
Male sterility in Solanum polytrichon × S. phureja hybrid, caused by plasmon-genic interaction and its significance M. M. F. AbdallaM. S. Ramanna OriginalPaper Pages: 482 - 489
Tetrahaploids from colchicine-induced octaploid Solanum acaule subsp. Aemulans J. G. Th. Hermsen OriginalPaper Pages: 490 - 492
An investigation into the cause of sterility in double-flowered freesia varieties and the possibility of restoring fertility J. BaërY. O. Kho OriginalPaper Pages: 493 - 497
Estimation of the proportion of inbred seed in Brussels sprouts hybrid seed by acid phosphate isoenzyme analysis B. Te Nijenhuis OriginalPaper Pages: 498 - 507
The combined use of leaf irradiation and of the adventitious bud technique for inducing and detecting polyploidy, marker mutations and self-compatibility in clonal populations of Nicotiana alata Link and Otto D. De NettancourtP. DijkhuisC. Broertjes OriginalPaper Pages: 508 - 520
Inheritance of fruit flesh and skin colours in powdery mildew resistant cucumbers (Cucumis sativus L.) E. Kooistra OriginalPaper Pages: 521 - 523
Techniques for the vegetative propagation of maize (Zea mays L.) F. De Wolff OriginalPaper Pages: 524 - 526
Factors affecting the incidence of internal deviations in Brussels sprouts (Brassica oleracea L. var. Gemmifera DC.) M. Nieuwhof OriginalPaper Pages: 527 - 535
Pollen fertility restorer gene from cultivated sunflower (Helianthus annuus L.) V. A. VranceanuF. M. Stoenescu OriginalPaper Pages: 536 - 541
The potential use of self-incompatibility for breeding F1 hybrids of naturally self-pollinated vegetable crops D. W. Denna OriginalPaper Pages: 542 - 548
Greening of carrot roots (Daucus carota L.): Estimates of heritability and correlation G. D. McCollum OriginalPaper Pages: 549 - 560
Factors affecting the degree of self-incompatibility in inbred lines of Brussels sprouts A. G. Johnson OriginalPaper Pages: 561 - 573
The inheritance of leaf rust resistance in four varieties of common wheat S. RajaramN. H. LuigI. A. Watson OriginalPaper Pages: 574 - 585
Further results on chromosome stability of hexaploid Triticale T. TsuchiyaE. N. Larter OriginalPaper Pages: 591 - 596
Factor analysis of fodder yield components in oats K. L. MehraBhag MalD. S. Katiyar OriginalPaper Pages: 597 - 601