Folia Horticulturae

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The effect of blue light on the height and habit of the tomato (Lycopersicon esculentum Mill.) transplant

Beata Głowacka

Department of Ornamental Plants and Vegetable Crops
Faculty of Agriculture, University of Technology and Agriculture in Bydgoszcz
Bernardyńska 6, 85-029 Bydgoszcz, Poland
e-mail: glowacka@atr.bydgoszcz.pl

Transplants of the tomato cultivars ‘Recento F1’, ‘Tukan F1’, and ‘Remiz F1’ were grown under fluorescent lamps emitting daylight and blue light with quantum irradiance 67 μmol m-2 s-1. The morphological attributes, as plant height, stem thickness, number of leaves, length of internodes, fresh and dry mass were investigated. Irrespective of the cultivar, favourable influence of the blue light was observed. Those plants were short, with thick and strong stem, shortened internodes, enhanced participation of the dry mass in fresh mass. The first clusters were set considerably lower. The application of the lamps emitting blue light can be an effective and environment-friendly method of controlling the growth of tomato transplant.

Głowacka B., 2004. The effect of blue light on the height and habit of the tomato (Lycopersicon esculentum Mill.) transplant. Folia Horticulturae 16/2: 3-10.