ISHS Acta Horticulturae 358: International Symposium on Alliums for the Tropics
ONION BREEDING IN SOUTH AFRICA |
| Authors: | C. Bester, J.J.B. van Zijl |
| Abstract:
In 1947, a breeding programme for short-day onions and in 1972 a breeding programme for intermediate-day onions were initiated at the Vegetable and Ornamental Plant Institute (VOPI). The most important cultivars released from the breeding programme are the open-pollinated short-day cultivars, Pyramid (1968), Bon Accord (1968), and Radium (1987) and the open-pollinated intermediate-day cultivars, Roël (1987), Rion-1, Rion-2, Rion-3, and Rion-4 (all in 1992). In 1980, the breeding of male-sterile and maintainer lines for both daylengths was initiated. Since then several well-adapted male-sterile and maintainer lines for both daylengths were developed. Currently, breeding for disease resistance is also incorporated into the breeding programme. | |
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