The urban environment induces stress on trees and its impact can be identified by observing the condition of crown. aim this study is to correlate variables crown density (Cdn), transparency (Ctr) dieback (Cdie) with following vegetation indices: normalized difference index (NDVI), enhanced (EVI), blue-normalized (BNDVI), green-normalized (GNDVI), green–red (GRVI) red–green–blue (RGBVI) crowns ...

In arid and semi-arid areas of the world, excessive mineral aerosol carried by air parcels is a common climatic incident with well-known environmental side effects. In this study, the role of sand-dust accumulation was investigated on various aspects of photosynthetic yield of Plantago lanceolata including chlorophyll (Chl) a, b, effective quantum yield of PSII photosystem (ФPSII), maximal quan...

Beneficial plant–microbe interaction for enhancing crop yield and quality is a sustainable way to achieve eco-friendly, desirable agricultural productions. The main objective of this experiment was evaluate the individual combined effects an arbuscular mycorrhizal fungus (AMF) strain (Funneliformis mosseae) seaweed extract (SWE) derived from Ascophyllum nodosum, on growth physiological response...

Herbicide mixtures are a modern weed management practice as they reduce herbicide application. This study aimes to evaluate the effect of metribuzin, halosulfuron and flumioxazin applied individually (metribuzin:halosulfuron metribuzin:flumioxazin) on Chenopodium album, Amaranthus retroflexus, potatoes biomass chlorophyll-a fluorescence in 21 experiments. The individual experimental design was ...

Pumpkin or squash is an economically important crop that moderately sensitive to salinity but how its growth affected by soil poorly understood. Salinity stress on physiological and anatomical traits of Cucurbita moschata ‘Butternut’ was investigated under hydroponic culture using Hoagland’s solution with various NaCl concentrations (0, 25, 50, 75, 100, 150 mM) for four weeks. The results showe...

The rate of photosynthesis and changes in chlorophyll fluorescence parameters of transformed tobacco plants grown in vitro and after their transplantation in natural conditions were studied. It was found that in vitro conditions limited photosynthetic incorporation of CO2 in the leaves of transformants probably because of restricted gas exchange in the vials. In vitro conditions also caused low...

This study was carried out in a plantation of a degraded area in Central Amazon, Brazil, in order to assess environmental light effects on leaf pigment concentrations and chlorophyll a fluorescence in mahogany (Swietenia macrophylla King) and tonka bean (Dipteryx odorata Aubl. Willd). Three-year old saplings were grown in an open site (sun) with maximum radiation of approximately 2000 μmol m s ...