Apples are the third most produced fruit in world, behind bananas and oranges, terms of volume. Over past ten years, Serbia's apple production has nearly doubled. less subjected to viral viroid attacks than other species. Most viruses cause no visible symptoms on plant's organs, trees either seem be good condition or, case sensitive cultivars, their yield is reduced. Apple stem pitting virus (A...

Stem pitting is a common virus-induced disease of perennial woody plants induced by a range of different viruses. The phenotype results from sporadic areas of the stem in which normal xylem and phloem development is prevented during growth of stems. These alterations interfere with carbohydrate transport, resulting in reduced plant growth and yield. Citrus tristeza virus (CTV), a phloem-limited...

Apple stem pitting virus (ASPV), of the Foveavirus genus in the family Betaflexiviridae, is one of the most common viruses of apple and pear trees. To examine variability of the coat protein (CP) gene from ASPV, eight isolates originating from 251 apple trees, which were collected from 22 apple orchards located in intensive apple growing areas of the North Gyeongsang and North Jeolla Provinces ...