A STUDY OF THE FRACTIONAL COMPOSITION OF SUGARS IN THE JUICE OF THE STEM OF SUGAR SORGHUM IN ARID CONDITIONS OF RUSSIA
2022
Kibalnik O.P. (Russian Research and Design–Technological Institute of Sorghum and Corn) | Kameneva O.B. (Russian Research and Design–Technological Institute of Sorghum and Corn) | Larina T.V. (Russian Research and Design–Technological Institute of Sorghum and Corn) | Semin D.S. (Russian Research and Design–Technological Institute of Sorghum and Corn) | Efremova I.G. (Russian Research and Design–Technological Institute of Sorghum and Corn)
Sugar sorghum is an agricultural plant capable of generating a high content of water–soluble sugars in the juice of the stem(18–22%). Due to its biological characteristics, the cultivation of this crop opens up wide possibilities for use in variousbranches of the agro–industrial complex of arid regions of the world: it is an alternative source of raw materials in thepreparation of rich and concentrated feeds used both in the food industry and as a renewable energy source. This articlepresents the results of the selection of starting material for the breeding of new F1 hybrids and varieties with a high content ofboth monosaccharides and disaccharides in the stem juice. The analysis of sugar content involved varieties, hybrids, and lines(93 in total) bred at the Institute of RosNIISK "Rossorgo". The study identifies samples with different ratios of mono– anddisaccharides from 8,9:86,6% to 97,0:2,8%, respectively. To increase the sucrose content in the stem juice, it is proposed toinvolve the "Kapital" variety and the lines L–75, L–21, L–5, L–4 in the breeding process, in which the ratio of disaccharides is17.74–19.18%, and monosaccharides – 1.89–3.38%. With the goal of conducting breeding in the trajectory of a high content ofmonosaccharides, the Chaika variety should be used, which is characterized by 13.76% of monosaccharides and aninsignificant amount of disaccharides – 0.36% in acutely arid conditions of the year.
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