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Effects of high and reduced NPK nutrition on the genetic variation of components of water use efficiency at the leaf and whole-plant levels were examined in pot-grown old and modern cultivars of winter wheat (Triticum aestivum L.). At the subsequent growth stages, the photosynthetic rate (A), transpiration rate (E), leaf area (LA) and gas exchange efficiency (A/E) were measured on fully developed...
The occurrence of leaf blotch of wheat caused by Septoria tritici (teleomorph Mycosphaerella graminicola) was more frequent in 1996 in the Upper Silesia region, south-western Poland, than in previous years. Visual scoring and serological tests proved the most rapid development of the disease from the emergence of flag leaf (GS 49) onwards. At the end of dough ripe stage (GS 85) on necrotic spots appearing...
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