The purpose of this study was to measure daily and seasonal evapotranspiration and daily crop coefficient of two common varieties of sunflower (Sirna and Euroflor) via drip-tape irrigation system. For this purpose, the sunflower water use was determined by daily monitoring of soil moisture at the depths of 10, 20, 30, 40 and 60 cm, and the crop evapotranspiration (ETC) was measured using volume...

in the first phase of this research, adaptability of winter rapeseed (brassica napus l.) varieties were investigated to select high yielding rapeseed cultivars. accordingly, two field experiments were performed in 2006-2007 and 2007-2008 cropping seasons at experimental field of agricultural and natural resources research center of markazi province, in arak, iran, in a randomized complete block...

The following professors participated in the symposium discussions as panelists: Maria Fidela de Lima Navarro (Univ de São Paulo, Bauru, SP, Brazil); Joana Carvalho (Univ de Louvain, Louvain, Belgium); Alexandre Rezende Vieira (Univ of Pittsburgh, Pittsburgh, PA, USA); Mário Taba Júnior (Univ de São Paulo, Ribeirão Preto, SP, Brazil); Tiago Sousa Coelho (Univ de Brasília, Brasília, DF, Brazil);...

extra use of chemical fertilizers in recent decades had resulted in pollution of water, soil and other environmental recourses. to investigate the effects of humic acid as an organic fertilizer on some yield components of three tomato (lycopersicon esculentum l.) varieties, an experiment was conducted during 2010 growing season at khorasan-e-razavi, ahmadabad suburb of mashhad. experiment was a...

This study was conducted to determine the nutritive value of soybean varieties using in vitro methods and gas production technique.In vitro gas productions and gas production kinetics of soybean variety were determined at 0, 3, 6, 12, 24, 48, 72 and 96 h incubation times. This study revealed that there were variations among five different soybean varieties in terms of chemical...

The phenotypic diversity of potato, Solanum tuberosum was assessed using morphological traits. To verify, how this diversity is distributed among the main potato varieties in the growing areas in Iran. A total of eleven potato varieties, Ramose, Sante, Shepody, Marfona, Maradona, Milova, Santana, Boren, Cosima, Granola and Agria, were evaluated under vivo and situ experimental conditions in Isf...