METHOD FOR DETERMINING SENSITIVITY OF PLANTS TO ENVIRONMENTAL FACTORS Russian patent published in 2021 - IPC A01G7/00 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture. In the method, the control and experimental groups of plants are formed in basic measurements. The investigated factor acts on the plants of the experimental group, the sensitivity of the plants to the investigated factor is judged by comparing the values of the selected indicator in the plants of the control and experimental groups. In preliminary measurements, combinations of environmental factors are specified. Acting on plants by combinations of factors, the values of indicators of the optical properties of plant leaves in the blue, green and red parts of the spectrum are determined. The coefficients of variation of the measured and derived from them derived indicator are determined - the ratio of optical densities of leaves in the red and green ranges. The obtained results are saved in a database on a machine-readable medium, in the basic measurements for the field of combination of factors, in which the sensitivity of plants is determined, a control and experimental groups of plants are formed. The plants of the experimental group are additionally affected by a factor, the sensitivity to which is to be identified. The selection of the closest set of factors and an indicator is made to identify the sensitivity of plants with the lowest value of the coefficient of variation with a degree of deviation of no more than 20% from the obtained database. Numerically, the sensitivity of plants to the investigated factor is determined as the ratio of the change in the selected indicator to the change in the value of this factor.

EFFECT: invention provides an increase in the convenience of measurements, ensuring their accuracy and reliability.

1 cl, 3 dwg, 2 ex