Grapefruit tree named 'TR-1'
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The new grapefruit 'TR-1' is provided. The variety is produced from a mutation of 'Rio Red' grapefruit, which can be distinguished by its outstanding features. TR-1 is a red grapefruit variety originated as a budsport mutation from Rio Red grapefruit and differentiating from the Rio Red grapefruit by a Red external color contrasting to the yellow with red blush from Rio Red grapefruit. The internal color is red with milder flavor reduced bitter taste.
Louzada, Eliezer Silva; Sonia Del, Rio Hilda (2020). Grapefruit tree named 'TR-1'. United States. Patent and Trademark Office; Texas A&M University. Libraries. Available electronically from