Information is highly scarce about the possible effect of a late spring frost on physiological response buds in ornamental trees. In this study, temperature Changchun at Northeast China was recorded to identify characteristics false by detecting extraordinary warming and sudden freeze early April 2017. Buds six local tree species were investigated for their dynamics biomass, non-structural carb...

The distribution and population sizes of Sorbus cambrensis (Welsh Whitebeam) S. stenophylla (Llanthony (Rosaceae) are revised based on field surveys. About 224 trees occur in eight populations/subpopulations (including the Llanthony Valley), about 96 five populations/subpopulations. Morphological analysis leaves confirmed two species were different showed some variation within each species.

BACKGROUND AND AIMS Various correlations have been identified between anatomical features of bordered pits in angiosperm xylem and vulnerability to cavitation, suggesting that the mechanical behaviour of the pits may play a role. Theoretical modelling of the membrane behaviour has been undertaken, but it requires input of parameters at the nanoscale level. However, to date, no experimental data...

Objective: In the present study, we have discussed antibacterial activity of methanolic extract Grewia tiliaefolia Vahl leaf and isolation pure phytochemicals by using column chromatography. Methods: The powdered material was extracted with methanol a soxhlet extractor compounds Evaluation determined zone inhibition disc diffusion method. Results: Three were isolated from chromatography, namely...