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Fruit Morphology of Red Raspberry and Its Relationship to Fruit Strength

1989; American Society for Horticultural Science; Volume: 24; Issue: 5 Linguagem: Inglês

10.21273/hortsci.24.5.776

2327-9834

JoAnn Robbins, Thomas M. Sjulin,

Tree Root and Stability Studies

Abstract Morphological characteristics of whole red raspberry fruit (weight, density), drupelets (height, diameter, number), receptacle cavities (depth, diameter), and pits (individual weight) were measured three times in 1983 on five cultivars of red raspberry ( Rubus idaeus L.) and three times in 1984 on 10 cultivars. Fruit strength, measured by compression and cohesion, was also recorded. Across all genotypes, compression and cohesion measurements were highly correlated with fruit weight, drupelet height and number, receptacle cavity depth, and individual pit weight. Drupelet height, drupelet number, receptacle cavity depth and width, and individual pit weight provided the largest component contribution to both cohesive strength and compression strength by path analysis.