Abstract
Additional index words. Allium cepa, vegetable breeding, Phoma terrestris dium size that are firm, pungent, and store for long periods of time. ‘White Sweet Spanish’ was selected out of ‘Utah Sweet Spanish’, which originated from selections out of ‘Spanish’, which was introduced from Spain to the United States in 1916. The reciprocal crosses were made by intercrossing all parents in a common pollination cage, using honey bees as the pollen vector. Seeds from each parent were kept separate, and selections were made within each maternal line using phenotypic recurrent selection for pink root resistance, white bulb color, whole bulb firmness, and bulb shape in 1981. Selection was done at field maturity from spring seeding near Las Cruces, N.M. The selections were made from fields that contained high inoculum levels for Phoma terrestris (Hansen), causal organism of pink root, and Fusarium oxysporum f. sp. cepae [(H.N. Hans.) W.C. Snyder & H.N. Hans], causal organism of Fusarium basal rot. Selec-
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
