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Potato cultivars Blaue St. Galler, Valfi, HB Red (with purple- and red-colored flesh), Irga, and Satina (with cream- and yellow-colored flesh) were treated with Trifender WP, Asahi SL, Bio-Algeen S90, and Kelpak SL. The influence of biostimulants on the P, K, Ca, Mg, and Na contents of potato skin and flesh was determined immediately after harvest and after storage. The highest content of Ca in the...
Five potato cultivars were grown in a micro-plot field experiment (under conditions of natural infection by pathogens). In experimental treatments, potatoes were treated with Trifender WP, whereas control plants were not treated with growth regulators. A greenhouse experiment, conducted simultaneously, involved three treatments: 1. control (no biostimulant treatment, no inoculation), 2. inoculation...
The aim of this study was to determine the influence of biostimulants on the content of selected microelements in the skin and flesh of potato tubers. Five potato cultivars were grown: Irga, Satina (with cream- and yellow-colored flesh), Valfi, Blaue St. Galler (with purple-colored flesh) and Highland Burgundy Red - HB Red (with red-colored flesh). Potatoes were treated with the following biostimulants:...
The aim of this study has been to determine the effect of cultivation and plant protection on the content of macro- and micronutrients and yield of roots in edible carrots. The cultivation of carrot according to the principles of integrated farming resulted in a higher root mass as well as a higher total and commercial yield than in the ecological cultivation system. The plant protection had a positive...
The external appearance and quality of table potatoes are determined, among other factors, by the health status of the plants during the growing season. Chemical control methods are often combined with biocontrol agents to effectively fight potato pathogens. Potatoes of the very early cultivar Rosara were grown in experimental plots. The plots were located in Tomaszkowo (NE Poland, 2007–2009). The...
Three times every 10-14 days, starting from the BBCH 39 phase, four cultivars of edible potatoes were treated with the following bio-stimulants: Asahi SL, Bio-Algeen S90 or Kelpak SL. The control object was plants potato sprayed with distilled water. The large amount of precipitation in the first year of the research contributed to an increased content of Fe and Mn in the potato tubers. The tubers...
Four potato cultivars were grown: Volumia, Irga, Satina and Sylvana. Potato plants were sprayed three times with the growth biostimulator Asahi SL and growth regulators Bio-Algeen S-90 and Kelpak SL. During the growing season, the severity of late blight and early blight was evaluated. After five-month storage, the incidence of common scab, black scurf, soft rot, late blight and dry rot was determined...
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