Folia Horticulturae

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Black and transparent plastic mulches in greenhouse production of sweet pepper. II. Light conditions and the generative development of plants

Stanisław Cebula

Department of Vegetable Crops
Faculty of Horticulture, Agricultural University
29 Listopada 54, 31-425 Kraków, Poland

In greenhouse production of sweet pepper the effect of screening with two kinds of plastic film (black or transparent), characterized by different reflection properties, on light conditions in the plant profile, fruit setting, yields, and quality of fruits were investigated. Compared with the unmulched control and the treatment with black mulch, the reflection of PAR at the level of the main branching was almost doubled with the use of transparent mulch. During the entire period of fruiting the highest percentage of fruit setting was recorded in plants mulched with transparent plastic film, a lower one in the case of black mulch, and the lowest in the unmulched control. The levels of yields exceeded the unmulched control by 38.6% in plants over transparent film and by 19.0% in those with black mulch. The mulching also favourably affected the marketable quality of the fruit and the earliness of yielding.

Cebula S., 1995. Black and transparent plastic mulches in greenhouse production of sweet pepper. II. Light conditions and the generative development of plants. Folia Horticulturae 7/2: 59-67.