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Micropropagation of three Polish raspberry cultivars in a tissue culture

100%

Jagla J.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

2015

tom 96

nr 1

Evaluation of mechanical harvest quality of primocane raspberries

100%

Rabcewicz J., Danek J.

Journal of Fruit and Ornamental Plant Research

2010

tom 18

nr 2

239-248

The aim of study was to evaluate the efficiency of a mechanical harvest of primocane (autumn) raspberry. The harvest was carried out using the tractor-pulled, one- row harvester "Natalia", equipped with four shakers. Two cultivars of raspberry: 'Polka' and 'Polana' were used in the evaluation of the quality of work. One amplitude (50 mm) and several frequencies (from 6.7 to 11.7 Hz) of shakers were applied. The following factors were evaluated during the conducted tests: amount of ripe and unripe picked fruits, amount of ripe fruits left on canes, and amount of fruits fallen on ground. The efficiency of mechanical harvest depended on the detachment forces of fruits and applied frequencies of shaker vibrations. Decrease of detachment forces during the vegetation season allowed application of lower shaking frequencies which reduced the percentage of unripe fruits harvested by the machine. Fruit loss on the ground was 1 -5% and was independent of shaking parameters. A better quality of harvest was achieved for the 'Polka' cultivar. Depending on the used harvest parameters, 60-80% of 'Polka' fruits were successfully harvested. 'Polana' was characterized by higher detachment forces and significantly lower quality of harvest (50-70%).

Ograniczanie wyników

1 BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

1 Journal of Fruit and Ornamental Plant Research

1 Danek J.

1 Jagla J.

1 Rabcewicz J.

1 2015

1 2010

Wyniki wyszukiwania

Micropropagation of three Polish raspberry cultivars in a tissue culture

Evaluation of mechanical harvest quality of primocane raspberries