A new distinctive cultivar of plum (Prunus domestica) named `Castleton` (formerly tested as NY 66.609.4) which is exceptional in combining (1) high quality, attractive dark purple fruit capable of achieving in mid-August sufficient color for commercial fresh markets, (2), a tree habit that has fewer lateral and secondary lateral branches than other competing commercial cultivars and which facilitates ease of harvesting, and (3) fruit quality and pit conformation traits coupled with consistent, high yield potential which favor it for commercial processing uses.

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›1.independentA new and distinct plum tree as herein described and illustrated.

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Plt/3.81

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James R. Feyrer

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