Browse

In Romania, wheat is the main crop, occupying the largest area of arable land. Convolvulus arvensis is a competitive and invasive weed, produces direct and indirect damages to which is added production of allopathic substances. Allelopathy is a natural phenomenon which refers to any direct or indirect effect, positive or negative of a plant (including microorganisms) on the other by the release of chemical compounds in the environment [13]. In most cases, influence is inhibitory, which may explain why some plants ...

The species Ambrosia artemisiifolia L. is a native of North America and was introduced in Europe, in botanical gardens, in the 17th-18th centuries [3, 6]. First alerts on the presence of Ambrosia artemisiifolia L. in Romania was registered in 1910 [11]. In the period 1960-1985 Ambrosia artemisiifolia L. was considered a ruderal species and was sporadically reported in Romania. The results of recent research show that Ambrosia artemisiifolia L. is in full expansion in Romania, as well as an increase in abundance, b...