Day neutral strawberries (Fragaria x ananassa Duch.) produce fruit over several months, even in climates with cold winters. Air temperatures during these long fruiting periods can range from near freezing to close to 40°C. We divided fruit development into four developmental stages and divided the typical air temperature range during the growing season into four non-overlapping intervals from 7 to 32°C. We sampled fruit from a day neutral strawberry planting approximately once a week from July to Nov., calculated the number of hours that individual fruits were exposed to a particular temperature interval during each of the four developmental stages, then correlated this number with the soluble solids concentration (SSC) of the harvested fruit. We found that warm air temperature exposure (16-23°C) early in fruit development was positively correlated with final SSC at harvest, but SSC increased further when fruits were exposed to cooler air temperatures (7-15°C) for the...

You do not currently have access to this content.