Folia Horticulturae

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Development of pepino (Solanum muricatum Aiton) in different light integrals

Katarzyna Kowalczyk, Jolanta Kobryń

Department of Vegetable and Medicinal Plants
Faculty of Horticulture, Warsaw Agricultural University
Nowoursynowska 166, 02-787 Warsaw, Poland
e-mail: kowalczyk@alpha.sggw.waw.pl

The growth, blooming, and fruitsetting depending on the day length (10 h and 16 h) and irradiance (70-75 and 200-250 μE m-2 s-1) were studied in phytotronic chambers on 5 different pepino (Solanum muricatum Aiton) clones. Day length and irradiance significantly affected the growth and development of clones. Under low irradiance, pepino plants produced fresh mass but in significantly smaller amounts in 10 h day than 16 h day and they did not bloom. Under the conditions of higher irradiance plant growth and generative development depended on the day length and clone. Pepino clones 2, 3, and 5 produced more fresh mass during the long day than with short day conditions. However, clones 1 and 4 obtained a much lower mass of fruit sets during the short day, in spite of producing similar fresh mass under both day length conditions. The effect of the short day was observed in reduced mass of fruit sets in all the studied pepino clones. The plants formed successive clusters higher on the stem and a few days later during the ten hour day than the 16 hour day.

Kowalczyk K., Kobryń J., 2003. Development of pepino (Solanum muricatum Aiton) in different light integrals. Folia Horticulturae 15/1: 35-42.