ISHS Acta Horticulturae 619: XXVI International Horticultural Congress: Potatoes, Healthy Food for Humanity: International Developments in Breeding, Production, Protection and Utilization
EFFECTS OF LOCATION AND YEAR OF PRODUCTION ON HYBRID TRUE POTATO SEED QUALITY AND PERFORMANCE |
| Authors: | M.D. Upadhya, R. Cabello, R. Falcón, E. Chujoy |
| Keywords: | seed weight, seedling vigor, tuber yield |
| DOI: | 10.17660/ActaHortic.2003.619.43 |
| Abstract:
Hybrid True Potato Seed (TPS) technology has gained commercial acceptability for potato production in a number of countries. Furthermore, governmental, non-governmental and private agencies have started producing and selling hybrid TPS varieties. However, there is a paucity of experimental data on the effects of location and year of hybrid TPS production on the TPS quality parameters and field performance of seedlings derived from TPS. Therefore, at CIP, studies were conducted with the aim of obtaining this information on these aspects. Hybrid TPS of seven varieties, produced at two of CIP's experimental locations in the last four years, was used for these studies. Data were taken on the average seed weight, seedling emergence 8 days after sowing (DAS), vigor and dry weight of seedlings 25 DAS and field performance of seedling transplants for total and marketable yields. Significant differences were found for seed weight among varieties for locations and years of production. Results are discussed with the aim of providing useful information on these aspects of hybrid TPS technology for those agencies involved in hybrid TPS production. | |
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