ISHS Acta Horticulturae 637: XXVI International Horticultural Congress: Advances in Vegetable Breeding
DEVELOPMENT OF S1 FAMILIES IN GARLIC |
| Author: | M.M. Jenderek |
| Keywords: | Allium sativum, Allium longicuspis, characteristics of seed progenies |
| Abstract:
Production of true seed in garlic (Allium sativum L. and A. longicuspis L.) has been known for several years. Although release of seed derived varieties may be nearing reality, there are no reports on inheritance patterns of plant characteristics for this species. The lack of information may be due to difficulties in producing inbred families. From 1999 to 2001, over 500 garlic plants were self-pollinated to generate S1 progenies for genetic studies. In all years, the number of S1 seeds harvested was low. About 9% of the self-pollinated plants produced from 10 to 73 seeds each, and only one produced a total of 271 seeds. The seed germination rate averaged 8%, and the number of S1 plants established was even lower. Phenotypic characteristics among plants of the S1 families that were different from the parents included the absence of viable pollen, the presence of yellow anthers, and different bulb size. Many seedlings either had severe chlorophyll deficiencies or truncated roots or did not grow beyond the first leaf stage. Despite the deleterious characteristics, S1 bulbs of a few families were successfully harvested and they represent valuable materials for studies on garlic genetics. | |
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