S. Benouis1,2*, H.A. Reguieg Yssaad1, E.H. Bouziani1, I. Khedim1 1Laboratory of Biodiversity and Conservation of Water and Soils, Faculty of Nature and Life Sciences, University of Abdelhamid Ibn Badis, Mostaganem, Algeria 2Scientific and Technical Research Center on Arid Regions (CRS

H. Nedeva*, R. Ivanova, H. Yancheva Crop Science Department, Faculty of Agronomy, Agricultural University, 12 Mendeleev, 4000 Plovdiv, Bulgaria (Manuscript received 20 May 2016; accepted for publication 6 June 2016) Abstract. The aim of the study was to establish the amount of plastid

Z. Zlatev, V. Popov Abstract. The aim of this study was to investigate the effect of organic fertilization on photosynthesis of young tomato plants (Lycopersicon esculentum Mill.) – cv. Trapezica and cv. Yana. The field experiments were carried out at the experimental field of the Agr