%0 Book Section %1 Dijkstra1989 %A Dijkstra, P. %D 1989 %E Lambers, H. %K bibtex-import, citeulikeExport papercopy, resource\_use %P 125--140 %T Causes and consequences of variation in growth rate and productivity of higher plants %& Cause and effect of differences in specific leaf area

@inbook{Dijkstra1989, added-at = {2019-03-31T01:14:40.000+0100}, author = {Dijkstra, P.}, biburl = {https://www.bibsonomy.org/bibtex/2d3b85fcacf3f3af8d925dbc5ab50eab2/dianella}, chapter = {Cause and effect of differences in specific leaf area}, citeulike-article-id = {1523668}, comment = {(private-note)The effects of SLA on Ps and RGR. Proportional increase or decreases in SLA and RGR used. 1/SLA = (FW/LA)*(DW/FW)*(DW1/DW + DW2/DW +?. ) fw/la = approximation of leaf thickness dw/fw = expressed as \%dw, reflects the density of the tissue lower \%dw can be associated with increases in cell area the last term is the dry weight of different compounds in the leaf. Change in the chemical composition of a leaf can accompany changes in specific leaf area, but can?t cause changes in itself, because all compounds add up to 1. (must express per unit lea area) @? N stress causes greater \%dw, greater starch content, lignin? higher PFD, thicker denser leaves (thickness main cause. No chem. effects). Adaptation to high altitude Cited examples of thicker leaves in alpine-grown plants vs lowland. Of a corresponding SLA decrease with altitude, of a slight lowering of \%dw. Purohit and Dhyani (1988) Suggest the increased leaf thickness is an adaptation to harsh environments of high altitudes: higher light absorption, less possibility for heat loss, because of a lower stomatal conductance, lower heat conductance btw. Leaf surfaces, btw leaf \& air. Changes in chem. composition. E.g. lipid and soluble sugar concentrations vary with altitude Panthis et al. 1987 Altitudinal Changes in SLA still very variable with species SLA relationship with N and with other compounds e.g. used for antiherbivory, support, adverse climates, competition, storage. These compounds may outweigh the photstsynthetic demand in determining the investment pattern in leaf dry matter. Is photorespiration the cause of differences? If at low CO2 concentrations there is a difference between the samples can conclude maybe. Is RUBISCO concentration the cause of differences? If at saturating CO2 there?s an increased difference between the lines, then maybe. If at High PFD the difference in photosynthetic rate becomes proportional to the differences in SLA, then RuBp-regenerating capacity isn?t the main cause.}, editor = {Lambers, H.}, interhash = {d801a121776e250654a2775c81ff1be0}, intrahash = {d3b85fcacf3f3af8d925dbc5ab50eab2}, keywords = {bibtex-import, citeulikeExport papercopy, resource\_use}, pages = {125--140}, posted-at = {2007-07-31 06:13:41}, priority = {0}, timestamp = {2019-03-31T01:16:26.000+0100}, title = {{Causes and consequences of variation in growth rate and productivity of higher plants}}, year = 1989 }