Jp. Prive et al., CARBON PARTITIONING AND TRANSLOCATION IN PRIMOCANE-FRUITING RED RASPBERRIES (RUBUS-IDAEUS L), Journal of the American Society for Horticultural Science, 119(3), 1994, pp. 604-609
Leaf removal, cane girdling, and C-14 translocation patterns were used
to study source-sink relationships of primocane-fruiting (PF) red ras
pberries. Although the leaves in the reproductive zone were most impor
tant for vegetative and reproductive development, compensatory effects
between the cane leaves were evident. When C-14 translocation was stu
died in the reproductive portion of the cane, the lateral closest to t
he C-14-treated leaf was the major sink for carbohydrate from that lea
f, independent of leaf position or reproductive development. Thereafte
r, partitioning to leaves and/or flowers or fruits above the C-14-trea
ted leaf was related to leaf phyllotaxy 75% of the time.