ABILITY OF GARLIC (ALLIUM SATIVUM L.) TO ACCUMULATE GERMANIUM UNDER NATURAL AND EXPERIMENTAL CONDITIONS

Abstract

The ability of garlic to accumulate germanium under natural and experimental conditions is discussed at the article. It was shown that the content of germanium in the bulbs of 24 samples belonging to 19 cultivars of winter garlic and 5 varieties of spring garlic, grown in the flat conditions of the Voronezh, Moscow and Tver regions, as well as in the mountainous conditions of the Shandong province (PRC), Karachay-Cherkessia and Mountain Altai is at a low level. The content of germanium in the bulbs does not exceed 4.2 μg/kg in 23 samples, in the sample grown in the conditions of Karachay-Cherkessia, the content of this element is 5.0 μg/kg. It was found that the efficiency of the accumulation of germanium in the bulbs depends on the method of feeding the plants. Foliar dressing is about 5 times more effective than root dressing and leads to an increase in the concentration of germanium in the tissues of the bulbs up to 20.0 μg/kg. It has been shown that the efficiency of germanium accumulation in bulbs depends on the method of application of the germanium-containing substance. More effective is foliar feeding with the addition of dimethyl sulfoxide to the Germatranol solution, which promotes better penetration of germanium into tissues. It was found that roots and leaves accumulate germanium most actively. The concentration of germanium in these organs is 115.2 and 141.0 times higher than in the control. In cloves, the concentration of this element exceeds the control by 37.1 times and consisted of 78 μg/kg.