What is relative water content?

Relative water content is described as the amount of water in a leaf at the time of sampling relative to the maximal water a leaf can hold. It is an important parameter in water relation studies, e.g. it allows the calculation of the osmotic potential at full turgor.

How do you calculate relative water content?

The RWC (fresh weight – dry weight)/(turgid weight – dry weight) × 100 (Pieczynski et al. 2013) was evaluated before the drought treatment (control; turgid plants) and after 3 weeks without watering (drought).

How are contents of water categorized?

Group 1: water content less than 50% and non-ionic. Group 2: water content greater than 50% and non-ionic. Group 3: water content less than 50% and ionic. Group 4: water content greater than 50% and ionic.

How do you calculate chlorophyll content in leaves?

Chlorophyll concentration is normally measured using a spectrophotometer in laboratory. In some remote observation places, it is impossible to collect the leaves, preserve them, and bring them to laboratory to measure their chlorophyll content.

How is net assimilation rate calculated?

It is synonymous with the term net assimilation rate. The usual symbol is E: the rate of dry weight production expressed per unit of total leaf area, LA. Its dimensions are mass per area per time, typically mg mm−2 day−1 or g m−2 day−1. Instantaneously, E = (1/LA) (dW/dt).

What is water composition?

A water molecule has three atoms: 2 hydrogen (H) atoms and 1 oxygen (O) atom. That’s why water is sometimes referred to as H2O.

What is percentage moisture content?

Wet basis moisture content (designated MW in the text) is described by the percentage equivalent of the ratio of the weight of water (WW) to the total weight of the material (Wt). Note that wet basis moisture content can range from 0 to 100 percent.

How is chlorophyll measured in water?

The measurement of algal biomass is important in aquatic studies and is commonly estimate the concentration of chlorophyll a in fresh water with 90% acetone method using spectrophotometer [9]. This is because spectrophometry is the classical method of determining the quantity of chlorophyll in surface water.

What is chlorophyll a in water?

algae
Chlorophyll a is a measure of the amount of algae growing in a waterbody. It can be used to classify the trophic condition of a waterbody.