Mass of leaf

In addition, we conducted a deciduous vs. Taxonomic relatedness analysis statistically supported the negative association of leaf density with saturated to dry leaf mass ratio.

specific leaf weight definition

One healthy leaf of three individuals from those selected for LMA measurements per species was selected. The LVA is the sum of the volumes of all the tissues per unit leaf area VA plus the air spaces [ 618 ]. Thus, while some studies [ 20 — 23 ] found that LD was the main component that differed between low- and high-LMA species, another study [ 24 ] found that variation in LMA was mainly due to variation in LVA.

Mass of leaf

Oecologia — Google Scholar Shields LM Leaf xeromorphy as related to physiological and structural influences. Journal of Biological Education, 34 3 , Leaf mass per area can be considered as the product of two physical properties: leaf density LD and leaf thickness LT. The mean annual temperature is So, different combinations of the number and layering of these tissues will have different physiological consequences. A few species could be found at several sites, but most were found at only one or two. It is widely considered that leaf anatomy and structure can subsequently impact A; for instance, cell wall thickness and chloroplast surface exposed to the intercellular space significantly impact CO2 diffusion inside leaves. Data and statistical analysis The LMA was calculated as the ratio of leaf dry mass and leaf area. The objectives of this study were a to investigate the correlations between LMA and leaf anatomical traits; and b to clarify the response of LMA to nitrogen supply and its effect on photosynthetic nitrogen use efficiency PNUE.

Bioscience —67 Google Scholar Beadle NCW Soil phosphate and its role in molding segments of the Australian flora and vegetation, with special reference to xeromorphy and sclerophylly. In order to obtain better insight into this variability, we need more studies testing the relationship between LMA and its two components LVA and LDespecially for plants growing under natural conditions with diverse species pools in different environments.

When its near neighbours are further away, it can afford to put more of its resources into reproduction.

Specific leaf area and photosynthesis

These contradictory results suggest that the causes of LMA variation do not necessarily follow a global pattern, and depend on the nature of the species compared and their environment [ 6 , 22 , 27 ]. In: Givnish TJ ed On the economy of plant form and function. Other traits described the anatomy of leaves, most of them relating to the lamina proportions of palisade and spongy parenchymata, epidermis, air space and sclerified tissues, expressed as volume per leaf area, and per-cell transversal areas of epidermis and parenchymata , and another referring to the mid rib transversal section of sclerified tissues. Thicker leaves also exhibited greater volume per leaf area and greater individual cell area in each of the tissues, particularly parenchyma. Species and subspecies of 11 rice varieties used in this study No. Plants are constantly balancing the amount of growth they put into shoots as against roots. Filter results by type:. Of course, a bigger plant has more leaves, but it is not a simple matter to switch growth into extra leaf mass. In order to allow for the influence of species evolutionary history, Pearson correlation analyses were carried out for all the above-described relationships, by fitting a phylogenetic generalised least squares model.
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Leaf specific mass confounds leaf density and thickness