Growth characteristics of winter wheat seedlings after pre-sowing and foliar treatment in extreme wet soil substrate conditions

The aim of experiments was to verify the effect of preparate Nitrafol-A-EKO, adhesive pre-sowing treatment and the pre-sowing and foliar treatment with an ornithinedecarboxylase inhibitor too (the mark KF) on the seedlings growth characteristics of winter wheat variety Astella and seed ripening. Experiment under light source had four variants of plants treatment (the first two variants) resp. of seed treatment (the second two variants). Plants were foliar treated with water in the first variant, foliar treated with KF inhibitor in the second variant. The seed were by pre-sowing treated with Nitrafol-A-EKO in the third variant by mixture Nitrafol-A-EKO preparation (adhesivum) and KF inhibitor dispergated in Nitrafol in the fourth variant. In small plot experiment on the locality Sladkovicovo the effect of KF inhibitor decreasing doses foliar applied at the beginning of ear formation on the grain yield of three winter wheat varieties (Astella, Livia, Blava) was studied. It follows from results that Nitrafol-A-EKO preparation is not inert substance, as was originally declared, but positively influences the physiological winter wheat seedlings characteristics (in the first month of their evaluation minimally). An ornithinedecarboxylase inhibitor application in dose 10 g/ha acts on the dry shoot mass content increases of plants cultivated in all (including extreme) wet soil conditions, minimally three weeks after its foliar application. In water stress conditions (20% FWC) it acts adversely on the water content decrease in plants, but on the waterlogged soil (90 resp. 100% FWC) by decreasing water content in plants it decrease plants down - beat. In extreme wet conditions of the soil substrate it increases the total plant leaf area. Its pre-sowing application acts negatively on the all observed growth characteristics with exception its effect on the waterlogged soil. Application of an ornithinedecarboxylase inhibitor at the beginning of ear formation over 10 g/ha decrease the grain yield, lower dose practically do not affect the yield. The problem to resolution: Can contrary character preparation (increasing the polyamine level during ripening) positively operate on the yield and grain quality ?