Persistence of pv. in Field Soil in Central Europe.

pv. () is a bacterium that causes black rot of crucifers. The greatest losses of brassica crop production usually result from seed-borne infection, but carry-over of inoculum in field soil may also be possible.

Assessment of Antioxidants in Selected Plant Rootstocks.

The service tree () is a wild fruit tree with immense medicinal and industrial value. This study aimed at determining the four major groups of antioxidants (flavonoids, phenolic acids and aldehydes, catechin and procyanidin) in rootstocks of (genotypes O-LE-14 and O-LE-21), (genotypes O-LE-14 and O-LE-21), (genotype O-LE-9) and (BA 29) (genotypes O-LE-14 and O-LE-21). Hyperoside (Quercetin 3-D-galactoside) was the most abundant flavonoid compound, since its average content in the rootstocks of (O-LE-21) was 180.