Amylographic characteristics of new rice varieties grown in Abinsk district, Krasnodar region in different conditions of nitrogen nutrition
The article presents the results of evaluation of amylose content and amylographic characteristics of the starch dispersion of varieties of ARRRI and new breeding grown in the Abinsk district, Krasnodar region with various doses of nitrogen fertilizing (N<sub>60</sub> and N<sub>120</sub>) in 2017, 2018.Standard-check variety Rapan and variety Adriatic did not have significant differences by the trait «amylose content» in N<sub>60</sub> and N<sub>120</sub>. There was an increase in the indicator of this trait in standard-check variety Flagman variety, varieties Bodrum and Okinawa. The exception was Corsica, the amylose content was higher at N<sub>60</sub>.An analysis of the results obtained suggests that increasing the dose of applied nitrogen fertilizer does not unambiguously lead to a decrease in the amylose content. The pattern is manifested in the conditions of the optimal limits of nitrogen nutrition, when the plant receives nitrogen sufficient for growth and development.