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In 2005–2009, thirteen apple cultivars planted in an orchard maintained in an organic system were evaluated. Of the studied cultivars, eight originated from scab-resistant group and five from a low susceptible group to apple scab. Trees were planted in the spring of 2004. Every year two applications of a copper preparation before blossom and two applications of sulfur after blossom were performed...
New sour - cherry cultivars of German breeding were assessed for their usefulness for cultivation in the climatic conditions of central Poland. The study was conducted in the Experimental Or chard in D ą browice near Skierniewice over the years 2001 - 2009. The experimental material consisted of trees of the cultivars: ‘Morina’, ‘Safir’, ‘Topas’, ‘Karneol’, ‘Korund’ and ‘Vowi’, which were compared...
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