The data and analyses presented in this study validate the use of the (SLA × LDMC)−1 product – or the water-saturated leaf fresh mass to leaf area ratio – as an estimate of leaf thickness in laminar leaves. This is an easy and rapid way to estimate leaf thickness from other, widely measured leaf traits, which are also easier to measure. This estimate therefore permits the computation of LT from existing bibliography and databases. LT could also be easily added to the list of ‘soft’ traits used in broad-scale interspecific comparisons aiming at defining plant ecological strategies, or as a screening tool in crop science.The apparent leaf density of 1 found in this study could be the consequence of compensation among values within studies or growth forms. Measurements of leaf density as well as information concerning the proportion of gaseous, liquid and solid phases in the leaf for a wide range of species and functional types are necessary if there is to be an understanding of how these compensations might occur (see Roderick and Cochrane, 2002).

Which type of leaf should have a higher surface area to volume ratio, meaning it is broad and thin?Group of answer choicesSun leavesShade leaves

The Last Leaf Summary and Analysis

Correlation coefficients equal to or larger than ± 0.775 are considered that accounted for at least 60 percent of the variation(0.775 z x 100) between comparisons. Negative coefficients exceeding - 0.775 were obtained for correlations between light reLEAF MESOPHYLLS OF TWENTY CROPS 3flectance and percent leaf-water content for sugarcane at 1,450-,1,650-, and 2,200-nm. ; for corn at 550- and 1,450-nm. ; for pigweedat 1,450-nm.; and for tomato at 1,450- and 2,200-nm.

Which of the following characteristics helps us distinguish true leaves from plant structures that are leaf-like but are not considered true leaves?Group of answer choicesThey contain a single vein of vascular tissueThey have multiple veins and branching vascular tissueThe presence of photosynthetic pigmentsTheir shape

The lengths of 50 leaves of a plant are measured correct to the nearest millimetre and the data obtained is represented in the following tableFind the mean length of the leavesSelect one:a.137.3b.137c.136.3d.136