Integrated indexes of absorption spectrums from green leaves extracts

The integrated indexes of absorption intensity (IAI) for extracts from green leaves were determined by spectrophotometry method as the area under a strip contour within abscissa of inflection points of absorbing range, using Simpson's formula. It is shown that in the course of IAI value vegetation at first increase, reach the maximum values in phases of blossoming and fructification, and then sharply decrease at a dissemination. The strongest correlation communication of IAI with phases of vegetation and less strong with the air temperature and duration of light day is revealed. The most considerable IAI have extracts from leaves of plants with the highest of a maximum in the range of 430-450 nanometers. The received IAI characterize photosynthetic processes, highly sensitive to external influences, and also enough exact tests for the express analysis, control and monitoring of a condition of vegetable resources can be used as simple.