DYNAMIC BALANCE OF SOLAR RADIATION MEASURED AT TOMATO LEAFS IN FIELD AND GREENHOUSE

The aim of the research was to investigate the way in which the intensity of solar radiation, at different hours of the day, influences the tomato plants grown in greenhouse and field conditions. The experiments underlying the research were located in the area of Cluj-Napoca. The assimilation of the radiation by the tomato plants has an important role for farmers growing tomatoes in greenhouses in geographic regions above 45 degrees north and south latitude

ORGANIC TREATMENTS FOR THE CONTROL OF MYCOSPHAERELLA FRAGARIAE INFECTION IN THE ECOLOGICAL CROP SYSTEM OF FRAGARIA VESCA

The damage caused by Mycosphaerella fragariae infection is one of the main foliar diseases of wild strawberries. The leaf spot disease decreases significantly the photosynthetic area and the quality of the fruits. This fungal disease caused by Mycosphaerella fragaria is an important factor that is limiting the crop production and it causes high costs due to yield losses and expensive pesticide applications. Traditionally, the main procedure for disease control in wild strawberry production depends on chemical treatments and pre-plant fumigation. Recently, alternative methods of disease control have been sought and researched, because of the increasing request for organic food. This study evaluates the effect of two organic treatments for the leaf spot disease on wild strawberry irrigated crop

STUDY ON METEOROLOGICAL PARAMETERS (TEMPERATURE AND PRECIPITATION) IN CLUJ NAPOCA IN THE INTERVAL 2015-2020

Climate refers to the average weather of an area including the general patterns of atmospheric conditions, seasonal variation and weather extremes averaged over a long period (Vinay, 2009). The aim of this study is determination the temperature and precipitation on seasons. For this study vere calculated the temperature and precipitation on seasons: Winter, Spring, Summer and Autumn in  interval 2015-2020. The biggest negative deviation from normal was in 2017 with -5.2% the season being characterized as excessive breezy. The highest amounts of precipitation were in 2015, 2017, 2019 with 61.8%, 77.7%, 61.5%, the seasons being characterized as excessive rainy. Temperature and precipitation in Cluj-Napoca show a clear warming trend over the last three decades

The Comparative Antimicrobial Effects of Ocimum basilicum Essential Oil in a Pure Form and Exposed to an Electric Field

Abstract. Lately, essential oils have started to receive an increased attention as well from the prime consumers as from the scientific community, as people are beginning to be more interested to invest in a healthy lifestyle. Their complex composition grants them multiple effects including antibacterial, antiviral and antifungal effects, which led them to be envisioned as a valuable alternative for the extensive use of antibiotics, as bacteria started to develop resistance and become more difficult to treat. In this study we compared the antibacterial and antifungal effects of basil essential oil and basil essential oil exposed to an electric field on six bacterial strains and one strain of C. albicans. To meet our objective, we’ve used the agar diffusion method. Our results showed that basil essential oil has a mild inhibitory effect on most of the bacteria and on C. albicans. Additionally, the basil essential oil exposed to the electric field mostly kept the same profile, even though it proved that it caused a slight decrease in the values of the inhibition potential of basil essential oil, except for S. enteritidis, where it showed an increase in its antibiotic capacity