Karimzoda Sorboni Sadi , Jurakhonzoda Rauf Jurakhon

Annotation:

The article presents a study on the photosynthetic activity of dominant pasture plants and its impact on pasture productivity.
The results of the analysis of photosynthetic activity of various grasses were determined depending on climatic and agrotechnical factors, as well as their growth characteristics under different conditions. The study was conducted in the Muminobod district, focusing on the grass species alfalfa “Ziddi,” “Issikul,” and “Vakhsh-300.” Based on the obtained results, it was found that the growth of plants, especially in the “Issikul” and “Vakhsh-300” varieties, contributes to an increase in photosynthetic activity. Correlation analysis results showed a significant relationship between leaf area and total biomass, particularly in the “Issikul” variety, indicating its higher efficiency in biomass accumulation.
Keywords: photosynthetic activity, pasture plants, biomass, productivity, agrotechnical factors.