Effect of sowing rate on quantity and quality of yield of shallot cultivar Matador F1 grown in the climatic conditions of Western Pomerania
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Author: Jadczak, Dorota; Kosecka, Dominika; Grzeszczuk, Monika
In the years 2005 - 2007 in the Department of Vegetable Growing of Agricultural University in Szczecin the field experiment was carried out. The aim of the experiment was to estimate the effect of different sowing rates (6, 8, 10, 12 and 14 kg.ha-1) on the quantity and quality of the yield of shallot cultivar Matador F1 grown in the climatic conditions of Western Pomeranian. Seeds were sown in the first decade of April into rows at 20 cm distance. Tha shallot was harvested in August. The yield was sorted into three classes depending on bulb diameter: <3, 3-4 and > 4 cm. After the harvest, quality measurements of the following features were taken: mean weight and diameter of bulbs for each class, and content of dry matter. In dried plant material content total nitrogen, phosphorus, potassium, sodium, calcium, copper, iron and magnesium was determined. Used in the experiment sowing rates have a significant effect on shallot yielding. Yield of bulbs of diameter < 3 cm was the least from the least sowing rate ( 3.01 t-ha-1) and has increased - up to 10.32 t-ha-1, in a response to sowing rate increment. Yield of bulbs of 3-4 cm diameter has significantly increased in a response to sowing rate increment, while the yield of the biggest bulbs of diameter > 4 cm was the highest when the least sowing rate was used - 15.90 t-ha-1 and the least when seeds were sown in amounts of 12 and 14 kg-ha-1. Total yield of shallot has significantly increased in a response to sowing rate increment. There was no significant effect of sowing rate on the weight and diameter of bulbs of each diameter found. The obtained results were subjected to an analysis of variance. The means of three years were separated by Tukey`s test at p=0.05. Yield of shallot cv. Matador F1 was characterized by a high content of dry matter, macro- and microelements.