the net assimilation rate per unit leaf weight what its value is commonly

The net assimilation rate per unit leaf weight, commonly referred to as NAR, is a measure of the rate at which a plant assimilates carbon through photosynthesis per unit of leaf weight. The value of NAR can vary depending on various factors such as plant species, environmental conditions, and growth stage. However, a commonly observed value for NAR in many plants is around 0.02 to 0.04 grams of carbon assimilated per gram of leaf weight per day.