The effect of activated water parameters on glucose synthesis during photosynthesis

FSBSI “Federal Scientific Agroengineering Center VIM”, 109428, Russia

^* Corresponding author: knyazewa.inna@yandex.ru

Abstract

The article presents the results of experimental studies to identify the nature of the relationship between the activated water parameters and the efficiency of glucose synthesis of vegetable crops using the example of set onion. It is noted that hydroponics is a method of growing plants in which nutrients can be artificially efficiently supplied to crops in mineral form as solutions. Solutions prepared on the basis of activated water are a new direction of hydroponic technology, which is insufficiently studied today. At the same time, to determine the degree of water activation, along with such indicators as pH and ORP, the activation degree in biology is usually expressed in terms of rН₂ index, which is a complex derivative of these two variables pH and ORP, that is, it most fully characterizes the properties of activated water. It is believed that the rH₂ scale varies from 0 to 42. Almost all plants feel comfortable at rH₂ 25-35. For the experiment, onion bulbs were planted in the amount of 7 pieces for irrigation with a nutrient solution based on non-activated water (control samples) and 7 bulbs for irrigation with a nutrient solution based on activated water. Then, the concentration of glucose Cg was measured using a triple-repeat digital refractometer MA873 for each sample and the average value was calculated for the cases of non-activated and activated water. Throughout the experiment, the same conditions for growth were maintained in terms of temperature, illumination, humidity, gas composition and others affecting the development of the plant, except for the parameters of nutrient solutions. As a result, it was revealed that the nature of the change in Cg when fed with solutions based on activated water at a certain value of the parameter rH₂ = 31 has the greatest increase in Cg = 3.51%. At the same time, the measured Cg values at different values of the activation parameter rH₂ have a fairly close relationship, as evidenced by a fairly high correlation coefficient between them, equal to 0.73.