ISHS Acta Horticulturae 379: International Symposium on Quality of Fruit and Vegetables: Influence of Pre- and Post- Harvest Factors and Technology
THE EFFECT OF PLANT DEFOLIATION AND ADDITION OF COLOURED SOLUTIONS IN THE PASSIVE SOLAR SYSTEM ON TOMATO (LYCOPERSICON ESCULENTUM MILL.) YIELD AND QUALITY |
| Authors: | M.D.C. Antunes, D. Gerasopoulos, M. Grafiadellis |
| Abstract:
The effect of using natural or black-coloured water in the passive solar system (PSS) and three defoliation treatments on tomato yield and fruit quality were studied. Transparent water tubes showed significantly higher light reflection than black water ones. Total yield was slightly higher in section A without significant differences from section B. The most severe defoliation reduced yield in the first and second clusters but did not affect significantly total production as well as earliness of production. Mean fruit weight, specific weight, soluble solids, firmness, dry matter, pH and titratable acidity were not affected by defoliation and the colour of the water in the tubes. The most severe defoliation reduced significantly total soluble solids in the two first clusters and dry matter in the first cluster. The same pattern was observed in both greenhouse sections. | |
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