ISHS Acta Horticulturae 352: VI International Symposium on Rubus and Ribes
PHYSIOLOGICAL RESPONSES OF 'T', 'V' AND HEDGEROW TRAINED RED AND BLACK RASPBERRIES (RUBUS IDEAUS L. AND R. OCCIDENTALIS L.) |
| Authors: | B. L. Goulart, K. Demchak |
| Abstract:
Sink/source relationships and production of raspberries trained to 'T', 'V' and hedgerow systems have been studied since 1988 in central Pennsylvania. On black raspberry, plants grown on the 'T' trellis yielded larger berries and yield was comparable to that from plants grown on a 'V' trellis. Plants had higher yields on both trellises compared to hedgerow trained canopies. There was clearly a difference in the sink/source relationships within the canopies, since the 'T' trellised plants had more primocane growth early in the season, a larger number of primocanes, and lower leaf N, P and K at the end of the season. For red raspberry research, a relatively inexpensive tractor mounted mechanical harvester was built and tested. Spray deposition within the various canopies has also been evaluated. Results of cane density studies on the various systems, as well as methods and results of monitoring canopy microclimate (photosynthetically active radiation, temperature, leaf wetness) will be discussed. | |
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