SUGAR BEET ROOT ROTS DURING VEGETATION PERIOD IN UKRAINE - Ecological Consequences of Increasing Crop Productivity - page 213

FIGURE 20.12 Ultrastructural analysis of the cells of the first 10 layers concerning sugar
beet root (neck area): (A), (С)—сell size in the top area of sugar beet root (home hybrid); (В),
(D)—thickness of cell walls and intercellulars (foreign hybrid).
20.4 CONCLUSIONS
Thus, the issue of sugar beet diseases and rots especially at the vegetation period
appeared because of the complex breakage of environment—plant—pathogen chain
(environment here is changing climate and agrotechnic conditions for sugar beet
growing). Directed efforts to increase the yield and sugar content change the mor-
phologic properties of plant. Under described conditions herein above, saprophytes
such as Fusarium fungi, Alternaria, Stemphylium , and mukors evolve to pathogens.
All that has resulted in such problem as sugar beet root rots during vegetation period
in Ukraine.