Folia Horticulturae

Current issue content   Search      

The effect of presowing seed conditioning and protecting with fungicide on the vigour of seeds and seedlings and the yield of two cultivars of hot pepper (Capsicum annuum L.)

Barbara D±browska*, Ewa Capecka**, Krystyna Suchorska-Tropiło*, Alicja Senatorska-Wi¶nioch***

***Department of Vegetable and Medicinal Plants
***Warsaw Agricultural University
***Nowoursynowska 166, 02-787 Warszawa, Poland
***Department of Vegetable Crops
***University of Agriculture in Kraków
***29 Listopada 54, 31-425 Kraków, Poland
***Department of Pomology and Basic Natural Science in Horticulture
***Warsaw Agricultural University
***Nowoursynowska 166, 02-787 Warszawa, Poland

Seeds of two hot pepper cultivars (‘Cyklon’ and ‘Bronowicka Ostra’) were subjected to osmoconditioning (PEG) and matriconditioning (MCE) and then, directly before sowing, either treated with a chemical seed dressing or sown without fungicide protection. The yield and quality of fruit as depending on the applied seed treatments was evaluated in field experiments conducted in parallel at two research stations (University of Agriculture in Warsaw and in Krakow). The analysis of seed vigour concerned speed and capability of emergence, fresh and dry weight of a seedling, DNA content in a seedling. They evidenced an advantageous effect of both methods of seed conditioning. For the majority of tested parameters the results obtained with seed matriconditioning were better than those with osmoconditioning. In consequence of chemical seed dressing, however, a considerable delay in the emergence and initial growth of seedlings was noted, especially with ‘Bronowicka Ostra’. The effect of seed conditioning and fungicide application on the yield and fruit quality differed, depending on the location of field experiments, cultivar, and harvest dates. In Krakow no significant effect of seed conditioning on fruit yield per plant was found, whereas in Warsaw such an effect was proved with the two cultivars tested. The content of capsaicin and carotenoids in physiologically mature fruits of hot pepper was higher when seeds were matriconditioned (‘Cyklon’) and osmo- or matriconditioned (‘Bronowicka Ostra’) than in the control. The additional effect of fungicide application on the content of these compounds depended on the cultivar.

D±browska B., Capecka E., Suchorska-Tropiło K., Senatorska-Wi¶nioch A., 2002. The effect of presowing seed conditioning and protecting with fungicide on the vigour of seeds and seedlings and the yield of two cultivars of hot pepper (Capsicum annuum L.). Folia Horticulturae 14/1: 105-117.