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
barley production, the winter barley yields
were very small. On average over the three
years of experimentation, the barley yields
achieved ranged between 5232 kg/ha (Dana
variety) and 6048 kg/ha (Sistem variety).
Depending on the average production
achieved during the three years of
experimentation, top three ranked varieties
are Sistem (6048 kg/ha), Andreea (5902
kg/ha) and Mădălin FD (5441 kg/ha).
Regarding the resistance to abiotic and
biotic stress factors, it has varied from year
to year depending on variety. The romanian
varieties were characterized by good
resistance to lodging and brown rust.
