PSHS main page    Folia Horticulturae

Current issue content   Search      

The effect of different air temperatures on ‘in vitro’ pollen germination of selected strawberry cultivars (Fragaria ananassa Duch)

J.A. Hortyński, J. Żebrowska

Department of Genetics and Horticultural Plant Breeding
Faculty of Horticulture, Agricultural University
Akademicka 15, 20-950 Lublin, Poland

The effect of three different air temperature ranges (10-15°C, 18-20°C, 25-30°C) on ‘in vitro’ fresh pollen germination from three strawberry cultivars (Dukat, Redgauntlet, Senga Sengana) and a breeding clone B-302 was investigated. The pollen germination was estimated six hours after scattering on a sucrose-agar medium consisting of 8% sucrose and 0.6% agar. The percentage of pollen tubes was evaluated according to the total number of pollen grains observed on each slide. Pollen germination of all the cultivars was highest at 18-20°C, while the lowest was observed at 10-15°C, this being significantly lower than that at 18-20°C or 25-30°C. In each of the applied ranges of temperature the highest percentage of pollen tubes occurred in Dukat and the lowest in Senga Sengana.

Hortyński J.A., Żebrowska J., 1991. The effect of different air temperatures on ‘in vitro’ pollen germination of selected strawberry cultivars (Fragaria ananassa Duch.). Folia Horticulturae III/3: 107-113.