Under extreme drought and climate change, golden pear trees have experienced problems such as yield reduction, dryness death. This suggests that we know very little about the mechanisms regulating tree growth, assuming meteorological factors positively influence plant sap flow. Based on this, used heat ratio method to monitor flow of from June December 2020, recorded changes in various environm...

In this work, a study of the biogenic composition atmospheric precipitation and its change during passage through crowns trees downy oak forest was carried out. First all, content rainwater-soluble compounds all considered elements in rainwater under canopy higher than an open area. It revealed that main forms nitrogen fallout were nitrates ammonium. The average concentrations anions collected ...

in order to investigate the effect of different weed-free and weed-infested periods on the growth indices of black seed, a field experiment was conducted at the agricultural research station of ferdowsi university of mashhad, during 2009-2010 growing season. the experiment was laid out in randomized complete block design with 12 treatments and 3 replications. twelve experimental treatments cons...

Open-pollinated seed was collected in 1963 from 81 trees in natural stands along the Mississippi River between Clarkscfale and Vicksburg, Mississippi. Twenty-nine of the trees were chosen for outstanding growth and form; the remaining 52 were randomly selected. Seeds were cleaned, then stored at 38° F and 25 percent relative humidity until sown on August 5. They were sown in subirrigated plant ...

objective: an increasing number of studies have reported on shifts in timing and length of the growing season, based on phonological, satellite and climatologically studies. changes in the timing and length of the growing season (gsl) may not only have far reaching consequences for plant and animal ecosystems, but persistent increases in gsl may lead to long-term increases in carbon storage and...

Knowledge of seasonal abundance and flight activity patterns are required to design effective management programs for insect pests of humans and livestock. In this study, the seasonality and daily flight activity of Stomoxys species were observed on two dairy farms in Saraburi Province, Thailand. Data were assessed throughout 1 year using Vavoua traps from September 2010 to August 2011. A total...

Realistic prediction of concrete shrinkage and creep requires the calculation of the distributions of relative humidity at various times. Although the distributions of the relative humidity can be computed by numerical methods from the differential equation for diffusion, simple prediction formulas can facilitate structural analysis. The purpose of this paper is to present a simple formula for ...

spores as causal agents in allergies and respiratory diseases. Method: Three periods of sampling have been carried out. The first sampling in 2005 with Rotorod equipment; the quantitative parameters were diversity, volume, and frequency of spores, as well as its relation with meteorological factors, like average temperature, relative humidity, and precipitation; a second study was performed in ...

The aim of this study was to evaluate the effect of the season (ambient temperature and relative humidity) on some blood metabolites in dairy cows during postpartum period. Blood samples were collected from 195 clinically healthy dairy cows of 8 Italian dairy herds in spring (April-May 15.5±4 °C and 69.5±0.7 %), summer (June-July 23±1.5 °C and 69±1.3 %) and autumn (September-October 17±2 °C and...

Stable isotopes in water have the potential to diagnose changes in the earth's hydrological budget in response to climate change and land use change. However, there have been few measurements in the vapour phase. Here, we present high-frequency measurements of oxygen isotopic compositions of water vapour (delta(v)) and evapotranspiration (delta(ET)) above a soybean canopy using the tunable diod...