The behavior of some winter barley varieties in the climatic conditions of the central Moldavian plateau

Abstract

This paper presents the enviromental testing research results of seven romania varieties of winter barley, experienced on Agricultural Research and Development Station (ARDS) of Secuieni, Neamţ county, Romania, during 2007 - 2010. By this was followed the zoning of the most adjusted and efficient genotypes, increasing their biodiversity so that to reduce the genetic and ecological vulnerability of the agroecosystems. In the last three years (2007 - 2010) was revealed the tendency of large fluctuations occurrence, both in terms of rainfall and temperature, from a normal crop year (2007 - 2008) in a dry year (2008 - 2009) and a rainy year (2009 2010). In the crop year 2009 - 2010, because of spring weather conditions that favored the installation of pathogen agents (Erysiphe graminis f.sp. hordei, Pyrenophora graminea, Pyrenophora teres, Puccinia hordei), but especially of the rainfall fallen in the last decade of June, which negatively influenced the evolution of the barley crop and contributed to the quantity (by shaking the beans in the ear) and quality deteriorating of