YIELD AND YIELD COMPONENTS OF GREENHOUSE, FIELD AND SEED BED GROWN POTATO (Solanum tuberosum L.) PLANTLETS

Abstract

The aim of the research was to determine field, greenhouse and seed bed performance of plantlets derived from in vitro propagated plantlets of three potato cultivars. Generally, higher values were obtained from the mid-early maturing cultivar Marabel, compare to other cultivars (early cultivar Velox and and mid-early cultivar Concorde) for tuber yield, tuber number and average tuber weight. For these yield components, in the field and seed bed plantlets were found lower values than greenhouse plantlets. The percentage of >4 g tuber weight was obtained for approximately 80 % in greenhouse and field plantlets and between 45 to 55 % in seed bed plantlets. These results indicated that greenhouse and seed bed potato plantlets can be used effectively to expand production of basic minituber seed stocks.