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  • 1 USDA-ARS Small Fruit Research Station, Poplarville, MS 39470
  • 2 University of Arkansas Fruit Substation, Clarksville, AR 72830
  • 3 Stephen F. Austin State University, Nacogdoches, TX 75961
  • 4 Auburn University, Auburn, AL 36849
  • 5 Horticultural Crops Research Station, Castle Hayne, NC 28429; respectively

Rabbiteye (Vaccinium ashei Reade) and southern highbush (mostly V. corymbosum L.) type blueberry selections were evaluated in regional trials at five locations. Entry × location interactions (E × L) were significant for all traits in the rabbiteye type and all except plant productivity, plant volume, Julian date of 50% ripe fruit, and berry weight at harvest 3 in the southern highbush type. Despite the significant interactions, selection FL80-11 and `Gulfcoast' were the earliest flowering rabbiteye and southern highbush entry, respectively, at each location. Significant E × L for plant volume and yield suggests that adaptation to the local environment is important in the selection of potential cultivars. Fruit quality traits appear less affected by environment than fruit production traits for the entries tested.

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