ISHS Acta Horticulturae 462: I Balkan Symposium On Vegetables and Potatoes
SWEET PEPPER RESPONSE TO THE APPLICATION OF THE PLANT GROWTH REGULATOR ATONIC |
| Author: | N. D. Panajotov |
| Keywords: | sweet pepper, yield, morphological behavior, quality, plant growth regulators, atonic |
| Abstract:
In peppers, the second economically most important vegetable crop in Bulgaria, the application of growth regulators at the time of flowering not only improves the general biological status of plants, but also increases their productivity and improves the production quality. In the present study, three concentrations of the plant growth regulator Atonic were tested in two pepper cultivars belonging to different subspecies - Kapia UV and Buceten 50. On the basis of the investigations made on the morphological changes that occurred, it was established that, generally, the treated plants had higher stems and weight. The higher concentrations induced the development of leaves with a smaller area. Varietal differences were registered in flower- and fruit formation. The highest yield of fruits for cv. Kapia UV was established at 0.125 ml/l and for cv. Buceten 50 - at 0.5 ml/l (13.6% and 7.0% over the control, respectively). The fruit quality improved, the highest increase in vitamin C being observed at 0.125 ml/l (up to 186.4 mg % and 188.2 mg %, depending on the cultivar), while the highest dry matter content was established at 0.5 ml/l. The content of dye substances in cv. Buceten 50 (grown for ground red pepper production) increased with the increase of the concentration applied. A genotypical differentiation was established with respect to the concentrations applied and the indices studied. | |
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