P.V. Tikhonchuk, T.P. Khayrulina
The Far Eastern State Agrarian University, Russia, Blagoveshchensk, ul. Polytechnicheskaya, 86
E-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.
Summary. The article presents the results of biochemical research activity of enzymes (catalase and peroxidase) and the content of vitamins (ascorbic acid and carotene) in the leaves of cultivated and wild forms of soybean in low and excess soil moisture at different periods of the growing season. Experience laid in pots in the vegetative house in 2008 – 2010 years. In the first half of the growing season some plants lacked soil moisture (35% PPV), other plants grown under conditions of excess soil moisture (135% PPV) in the blood vessels of the third group of plants maintain an optimal level of humidity (70% PPV). After flowering, the soil moisture content varied from 35 to 135% and 70%, with 70% at 35 and 135% PPV. Found that the lack of moisture in the soil activates the enzyme peroxidase activity (in the third phase ternate leaf activity increased 4-fold in the flowering stage – 2.3 times, phase boboobrazovaniya – 3.5), and soil moisture leads to an increase in the activity of catalase (from ternate third phase to phase bobobrazovanie sheet – 2-3 times to 6 times, respectively development phase). Carotene content in the leaves of soybean depending on the phase of development is reduced under water stress from 5 to 70% in the leaves of plants form SC 1344, this trend is not checked. Between the lack of soil moisture content of ascorbic acid increased by 30 – 60% depending on the stage of soybean development.
Keywords: soybean, soil moisture, catalase, peroxidase, ascorbic acid, carotene.