According to FAOSTAT, in 2018-2019 rice was planted in 118 countries on an area of 167 million hectares, the annual grain production in the world is about 782 million tons. Rice is the most popular cereal in the diet of the Russian consumer. Rice growing is a small but rather important branch of the agro-industrial complex of the Russian Federation. The main rice producers in the world are China (over 214 million tons), India (over 172 million tons), Indonesia (83 million tons), Bangladesh (56 million tons), Vietnam (44 million tons), Thailand (32 million tons) and Myanmar (25 million tons). In the Russian Federation, rice is grown in three federal districts, in nine subjects: in the Southern Federal District - the Republic of Adygea, Kalmykia, Krasnodar, Astrakhan and Rostov Regions; North Caucasian Federal District - Republics of Dagestan and Chechen; Far Eastern Federal District - Primorsky Territory and the Jewish Autonomous Region. Scientific support of the rice-growing industry in the Russian Federation is carried out by the Federal Scientific Rice Centre.
In order to develop rice breeding material of a functional direction, technological and biochemical grain quality traits of varieties bred by the Federal Scientific Rice Centre (Rubin, Mars, Mavr, Gagat, Yuzhnaya noch) with a colored grain pericarp, high content of anthocyanins and intended for functional nutrition were studied. The varieties were grown in the valley agrolandscape zone of Krasnodar region (Russia) in 2017–2019. The studied rice varieties are included in the State Register of Protected Breeding Achievements. The grain size by weight of 1000 absolutely dry grains (weight of 1000 a.d.g.) was determined according to GOST 10842-89, fracturing on a DSZ-3 diaphanoscope, protein content was measured using an Infralum FT-10 device. The determination of amylose was carried out colorimetrically using the amylose-iodine reaction according to Juliano. The varieties have a medium-sized caryopsis (21.5-27.0 g of 1000 grains); of them, the variety Yuzhnaya noch is characterized by the smallest grain. The variety Mars belongs to the low amylose group, varieties Mavr, Rubin and Gagat to the medium amylose group, Yuzhnaya noch to the waxy group. In terms of protein content in grain, all varieties are classified as medium protein. The maximum grain fracture was in variety Mavr in the range of 19-25% and the minimum in Mars and Gagat, respectively 2-5 and 2-6%. Variations in grain size indicators, amylose and protein content of varieties are weak in all varieties of special purpose, which testified to their high stability under growing conditions.
Грушанин Алексей Иванович к.с.-х. н., ведущий научный сотрудник отдела овощекартофелеводства Федеральное государственное бюджетное научное учреждение «Всероссийский научноисследовательский институт риса», Россия Бут Наталья Николаевна главный специалист Федеральное государственное бюджетное учреждение «Краснодарская межобластная ветеринарная лаборатория», Краснодар, Россия Есаулова Любовь Владимировна к.б.н., ведущий научный сотрудник лаборатории биотехнологии и молекулярной биологии РИНЦ SPIN-код: 9335-1160
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