Accession details

Passport data and everything else

PI 639253
Accession number
PI 639253
Institute code
Acquisition Date
14 September 2004
Provenance of material
Biological status of accession
Advanced/improved cultivar
Ancestral information (pedigree)
Selected from Ben Shermen. A selection of 100 non-bolting bulbs was made from a planting with >90% bolting. Bulbs were selfed, leaving one umbel of each to intercross. Tests on self progeny indicated one bulb selection (7933) to be superior in bolting resistance and bulb shape. 'NuMex Sundial' and 'NuMex Suntop' were derived by two cycles of selection from the open-pollinated (intercross) progeny from 7933.
Type of germplasm storage
Seed collection
Availability for distribution
Availability not provided
Status not provided
Taxonomy provided to Genesys
Specific epithet
Scientific name
Allium cepa L. var. cepa
Crop name
Accession names
Accession name
NuMex Sundial
Other identifier
NuMex Sundial
Short day onion. A yellow, intermediate variety described as a "hard, tough onion". This variety resembles "Yellow Sweet Spanish" in most characteristics. Tops are large and non-glaucous. Bulbs are globe to high-globe, very hard, and have a smooth, tan scale. Bulbs are firmer than most Sweet Spanish cultivars, and matures 3-4 weeks earlier than the Utah strain of "Yellow Sweet Spanish". Its handling characteristics have generally been rated high. It has excellent tolorance to pink root disease. NuMex Sundial can be used for spring-seeding, but will produce larger bulbs if fall-seeded. From fall-seeding, it produces excellent yields of large onions. Spring-seeded yields are somewhat less than other spring-seeded intermediates, and tends to produce small-medium sized onions.
Collecting information
Provenance of material
Last updated
28 January 2021
Date not provided