RESPONSE OF THREE OAT FORMS TO SPRINKLING IRRIGATION AND NITROGEN FERTILIZATION

Abstract

The aim of this study was to assess the effect of sprinkling irrigation and nitrogen fertilization on the leaf area index (LAI), chlorophyll content (SPAD), grain quality, as well as grain yield and yield components in three oat forms (tall husked, dwarf husked and hulles). Field trials were conducted in 2008 and 2009 on the fields of the Experimental and Teaching Station in Gorzyń (the branch in Złotniki), which belongs to the Poznań University of Life Sciences. Sprinkling irrigation increased the grain yield of oat by 1.45 t ha-1 , (51.8%). The highest grain yield was recorded for the tall husked form (STH 8007). Nitrogen fertilization significantly increased the oat grain yield as the increase in the rate of nitrogen application to 100 kg N ha-1 was observed. The greatest contents of protein and fat, as well as the highest SPAD value and chlorophyll content were found in the hulless oat form. The best quality sowing material was produced by the tall husked form. It was manifested with a higher germination energy and germination capacity as well as lower shares of healthy non-germinating and abnormally germinating kernels.