Introduced
The UCR-reproduced 1967 account reports that Frost Marsh was introduced commercially in 1952.
Sources: [1]
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World of CitrusWorld of CitrusFrost Marsh Grapefruit
The UCR-reproduced 1967 account reports that Frost Marsh was introduced commercially in 1952.
Sources: [1]
The UCR CRC3184 profile reports that H. B. Frost received Marsh grapefruit seed in 1915 and selected Frost Marsh from the resulting nucellar seedlings. The page also reproduces a 1967 account saying the seed was planted in 1916. These statements distinguish seed receipt from planting; the selection year is not stated.
Sources: [1]