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Effectiveness of Protection of Early Potato Cultivars Against Phytophthora infestans Mont De Bary depending on the Protection Strategy

December 18 2017 by INKOA
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The research was based on the field experiments conducted in 2014–2016 in the Variety Assessment Experimental Station, Central Center for Cultivar Assessment in Uhnin on the fawn soil, with a slightly acidic reaction, on rye good complex. The experiments were set up as random blocks in a dependent arrangement in three replications. The strategy of potato protection against late blight was the factor of a first line (from three to nine fungicide applications and a control object – without protection). Potato cultivars (5) with different level of resistance on Phytophthora infestans were the second experimental factor. 

In the experiment, the following rates of fertilizers were applied: 90 N, 39,2 P, 112 K kg·ha-1. Evaluation of efficiency of different complex strategies. Six-times potato protection was the most effective strategy regarding the tuber. The resistance of cultivars on Phytophthora infestans should be taken into account when choosing the strategy of potato protection against late blight.

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