Volume 52 Number 2 Article 24
Year 1998 Month 4
Title: Variation in Drupelet Number and Weight in Pacific Northwest Red Raspberries
Author: P.P. Moore
Abstract:
Fruit weight, drupelet number, drupelet weight and seed weight were measured for five fruit per plot
for raspberries in plantings established at Puyallup, Wash.
Primary fruit were harvested in the first and
second harvest seasons for raspberries in three plantings established in 1990, 1991 and 1992. For
pooled data from the 124 plots sampled in this study, mean fruit weight fruit and drupelet weight increased from the first to the second season, while there was no increase in drupelet number.
The plant
ing established in 1992 did not follow the same pattern as the pooled data.
In the 1992 planting the
drupelet number increased, but drupelet weight did not increase from the first to the second harvest season.
This may be the result of weather conditions at the time of fruit initiation or fruit development.
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