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The effect of pollination method and flower hormonization on yielding of eggplant (Solanum melongena L.) grown in a plastic tunnel

Grażyna Kowalska

Department of Vegetable and Medicinal Plants
Agriculture University in Lublin
Leszczyńskiego 58, 20-068 Lublin, Poland
e-mail: radko@ursus.ar.lublin.pl

The experiment was carried out in three unheated plastic tunnels from 1998-2000. The aim of the study was to compare the effects of two methods of flower pollination (self-pollination and using bumble-bee) as well as flower hormonization on the yielding of three cultivars of eggplant - ‘Black Beauty’, ‘Solara F1’, and ‘Epic F1’. The profitable effect of pollination by bumble-bee (Bombus terrestris) and flower hormonization (β-naphthoxyacetic acid) on the yield of eggplant under cover was found. A significantly higher marketable yield of fruits and early yield of fruits were achieved from plants whose flowers were pollinated by insects and hormonized in comparison with those self-pollinated. Pollination of eggplant by bumble-bee brought about a significant increase in number of formed fruits of marketable yield as compared with plants whose fruits were set owing to flower hormonization and self-pollinated. The analysis of yield results showed that the introduction of the bumble-bee and growth regulator into eggplant cultivation positively affected the biometric traits of eggplant fruits. The positive effect of these two operations resulted from significant improvement of fruit quality which were greater in weight and size. The evaluated cultivars, regardless of the method of pollination and flower hormonization, differed significantly with regard to yielding. The highest marketable yield and early yield of fruits were found from cultivars: ‘Epic F1’ and ‘Solara F1’, followed by ‘Black Beauty’.

Kowalska G., 2003. The effect of pollination method and flower hormonization on yielding of eggplant (Solanum melongena L.) grown in a plastic tunnel. Folia Horticulturae 15/2: 77-87.