Abstract
The efficiency of influence of Plantafol (10.54.10) foliage application on soybeans in soil and climatic conditions of the Ternopil region was investigated. It was found that Plantafol increased the green weight of top and plant density, the total mass of grain per plant, its significance and therefore increased the grain crop by 4.9 c/ha.The crop growth was due to the formation of 15.0% higher biomass green weight of top with higher plant stand by 8% and the increase of seed productivity mainly by increasing of the total weight of seeds in plants by 10.2% and its significance by 7.9 % in comparison with the control. By the influence of Plantafol, there was an increase of the height of beans fastening by 6.4%, as well as a tendency to increase the number of beans by 5.7% and the number of seeds per plant by 2.1%.The chlorophyll fluorescence induction technique was used to isolate a group of fluorescence parameters of chlorophyll a, in particular φNPQ, φNO, which can determinate variations in the productivity of the variety, as they are sensitive to the foliage application.There wasn’t found the direct influence of the mineral fertilizer on the quantum yield of photochemistry PS II (ФPSII). At the same time, the abundance of chlorophyll (SPAD) increased.It is assumed that the decrease of the ECSt level, observed under the conditions of Plantafol foliage application of plants, led to the decrease of NPQt and φNPQ levels in soybean.In the absence of significant difference in the rate of linear electron flux in the experimental and control groups, Plantafol decreases the NPQt level and causes the increase of the total number of active RC FS I.The obtained data proved the significance and the perspective of foliage application using as of complex mineral fertilizers during soybean cultivation that increases its productivity in local soil and climatic conditions.The Plantafol reduces the negative effect of some nutritional elements in soil and increases the soybean crop in the conditions of Ternopil region by stimulating photosynthetic, growth and production processes.
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Schedule a callMore From: Scientific Issue Ternopil Volodymyr Hnatiuk National Pedagogical University. Series: Biology
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