THE INFLUENCE OF GROWTH REGULATORS ON THE PHOTOSYNTHETIC ACTIVITY OF LENTIL VARIETIES

The productivity of crops is determined by the efficiency of absorption of headlamps by the green surface of plants. By now, the formation of the leaf surface and its size are the most studied among the indicators of photosynthetic activity of crops of various crops. The effectiveness of crop cultivation technologies is assessed on the basis of a number of quantitative indicators that reflect the photosynthetic activity of plants. These indicators are key to understanding plant productivity and optimizing their growth conditions. The experiment took place in 2021-2023. The lentil varieties (Svetly, Vekhovskaya, Aida) were studied when treated with growth preparations Lignohumate, Biosil and Ecopin. Studies have shown that the most favorable factors for the formation of the highest leaf area indicators by varieties were formed on the variant with Ecopin, where on average this indicator was noted at the level of 34.8 thousand m2/ha. In the experimental criteria, the maximum leaf surface was represented by the variety Svetaya-directly - 33.3 thousand m2/ha. The overestimation with the data of the Vekhovskaya variety is expressed by 4.1%, and with the indicators of the Aida variety-8.1%. The most productive work of the leaf apparatus of lentil varieties (FPP) was observed when treated with Ecopin – 1.57 million m2 cd/ha. The minimum value (1.38 million m2 x days/ha) was recorded in the control variant, and in plots with Lignohumate and Biosil preparations they ranged from 1.42-1.49 million m2 x days/ha. Among the varieties, a fairly high value of the photosynthetic potential of crops was noted in Light – 1.56 thousand m2 x days/ha). On crops of other varieties (Vekhovskaya and Aida), the FPP varied between 1.37 and 1.47 million m2 cd/ha.