A Methodological Approach to Assessing the Contribution of Agribusiness to the Value Creation Chain and Its Impact on Macroeconomic Indicators: The Experience of the Republic of Moldova

The aim of the work was to investigate the effect of photoselective polyethylene films (dark green, dark red, dark yellow, UV-treated white, untreated white-control) on productivity components, production and biochemical quality characteristics of fruits (content in soluble forms of N,P,K; concentration of total soluble carbohydrates, vitamin C and fruit acidity), in two tomato hybrids - Solanum lycopersicum (Cindel F1, var. esculentum, and Cerise F1, var. cerasiforme). The experience was located in solariums covered with different types of photoselective PE films, within the USAMV Bucharest greenhouses. The results’ interpretation and analysis suggested that: the highest number of fruits was recorded in the green and white UV-treated film; the mass of fruits increased under all sections covered with the photoselective films; the diameter of the fruits in the studied variants exceeded the diameter of the control; the highest production was in the plants in the section covered with the green film in both varieties. The phytosanitary condition of the crops was also monitored throughout the vegetation period.