Botryosphaeria dieback is a fungal grapevine trunk disease that currently represents a threat for viticulture worldwide because of the important economical losses due to reduced yield of affected plants and their premature death. Neofusicoccum parvum and Diplodia seriata are among the causal agents. Vine green stems were artificially infected with N. parvum or D. seriata at the onset of three d...

Wine grapes are highly sensitive to changes in climate. The aim of the study was evaluate influence selected climatic variables such as air temperature, total precipitation and North Atlantic Oscillation Index on wine quality. This effect monitored individual phenological stages grapevine plant growth; monitoring done separately for each varieties. following varieties were subjected evaluation:...

Biotrophic fungal pathogens are expected to have adapted to their host plants for phenological synchrony, to optimize the possibility of contacts leading to infections. We investigated the patterns and causes of variation in phenological synchrony in the oak-powdery mildew pathosystem, a major disease in natural ecosystems. The study was carried out along an altitudinal gradient, representing a...

In the old course of Yellow River area, most orchards are over-applied with nitrogen (N) fertilizers. To improve N management in this a 15N tracing experiment was conducted to investigate absorption, distribution and loss spring-topdressing urea pear from March August 2019. The 7-year-old Sucui 1 used as test material, 277.5 g ordinary 15 15N-urea were evenly applied each plant. utilization eff...

Spread of soil-borne fungal plant pathogens is mainly driven by the amount of resources the pathogen is able to capture and exploit should it behave either as a saprotroph or a parasite. Despite their importance in understanding the fungal spread in agricultural ecosystems, experimental data related to exploitation of infected host plants by the pathogen remain scarce. Using Rhizoctonia solani ...

Soil moisture was assessed with quad-polarimetric TerraSAR-X and dual-polarimetric (HH/VV) TanDEM-X data from the agricultural region of Wallerfing, Germany. The investigations included a bare soil case in April 2009 (TerraSAR-X) and a time series of 04-07/2011 (TanDEM-X) to estimate soil moisture on bare and vegetated soils including different agricultural crop types at various phenological st...