The rates of reduction in chlorophyll and nutrients such as nitrogen, calcium iron with the distance or range source Magnetic Field (MF) had not been considered. In this work, patterns damage caused by a magnetic field on two different species vegetables were studied. first group was planted an environment without influence MF, while second subjected to high MF under 330 kV electric lines. magn...

Abstract Bananas were examined starting from ripening stage R2 (green) to R7 (overripe), identify suitable non-invasive, real time in-situ technologies separate the stages: (1) Chlorophyll degradation, measured by DA meter, decreased ca. 2.1 (R2) 0.2 IAD units (R7), i.e. tenfold decline. (2) Colour CIE-Lab a values dramatically increased as indication of chlorophyll breakdown and enable differe...

Artificial streams were set up to test the relationship between near-bed water velocity and periphyton growth. Periphyton community samples collected from a Japanese stream were incubated for 44 days under a light intensity of 252 ± 72 μmol·photons/m2·s, a temperature of 20–25 ◦C, and three near-bed water velocity classes: low (<17.9 cm/s), moderate (17.9–32.8 cm/s), and high (>32.8 cm/s). A lo...

The oceans absorb ~25% of the annual anthropogenic CO2 emissions. This causes a shift in the marine carbonate chemistry termed ocean acidification (OA). OA is expected to influence metabolic processes in phytoplankton species but it is unclear how the combination of individual physiological changes alters the structure of entire phytoplankton communities. To investigate this, we deployed ten pe...

A bell-shaped vertical profile of chlorophyll a (Chl a) concentration, conventionally referred to as a subsurface chlorophyll maximum (SCM) phenomenon, has frequently been observed in stratified oceans and lakes. This profile is assumed to be a general Gaussian distribution in this study. By substituting the general Gaussian function into ecosystem dynamical equations, the steady-state solution...

Hydroponic systems have become increasingly popular for growers in recent years year-round local production. Whereas optimal air temperature plant growth has been considered, root zone temperatures not examined as thoroughly. The objective of this research was to determine the water growing different types basil hydroponically. Research conducted at greenhouses Stillwater, OK. Seventeen cultiva...