Early Generation Selection within a Diploid Hybrid Solanum tuberosum Groups Phureja and Stenotomum Population for the Intense Yellow-flesh Creamer Potato Market

Abstract

<jats:p>Consumer demand for specialty market potatoes has been growing. Cultivated South American diploid potatoes possess great variation for skin and flesh colors, shape, and taste. A long-day adapted population of <jats:italic>Solanum tuberosum</jats:italic> groups Phureja and Stenotomum (<jats:italic>phu-stn</jats:italic>) was evaluated for characteristics associated with the type known as <jats:italic>papa criolla</jats:italic> or <jats:italic>papa amarilla</jats:italic> in South America. Tubers have intense yellow flesh and may be fried or roasted and eaten whole. A U.S. northern location (Maine), representative of a seed growing region, and two southern locations (Florida and New Mexico), representative of potato growing regions near large Hispanic populations, evaluated yellow-fleshed clones selected within a <jats:italic>phu-stn</jats:italic> population. Agreement between selectors at two locations was greater than 50%. Tuber skin color and shape were highly correlated between locations; flesh color and tuber dormancy moderately so; eye depth had low correlation between locations; and appearance and skin texture had low or no correlation between locations. Tuber dormancy was generally short, but a few longer dormant clones were identified. There were significant differences among clones for yields, with the highest yields occurring in Maine. More intense evaluations are planned for a subset of these clones before possible release as new varieties. Future breeding efforts will be undertaken to lengthen tuber dormancy in this population.</jats:p>

Source material from crosses among <I>Solanum</I> L. spp. for potato breeding

“…et Buk. (Tam, Tai, 1983;Haynes et al, 2019). Для достижения длительной устойчивости в сочетании с удовлетворительными агрономическими характеристиками такой исходный гибридный материал должен быть интрогрессирован в чувствительные к фитофторозу сорта.…”