The elder De Candolle
and Lyell have largely and philosophically shown that all organic beings are exposed to severe competition.
, na depressao central do estado do rio grande do sul.
(ed.), Prodromus Systematis Naturalis Regni Vegetabilis 13(1): 471-476.
Temperatura e regime de luz na germinado de sementes de Tabebuia impetiginosa (Martius ex AP de Candolle
) Standley e T.
(32) Roger de Candolle
, Histoire du Theatre de Geneve: en commemoration des cent ans d'existence du Grand Theatre de Geneve (Geneva: Roger de Candolle
, 1978), pp.
E de Candolle
, Amerine also helped devise the now standard method of heat summation (the seasonal sum of daily mean temperatures above 10 degrees Celsius) for evaluating climatic vinicultural potential.
Accordingly, he proposed five climate groups based on the vegetation groups previously determined by the French botanist Agustin Pyrame de Candolle
: (a) equatorial climates, (b) arid climates, (c) warm temperate climates, (d) snow climates, and (e) polar climates .
Seminal studies conducted over the next two centuries would continue to build on De Mairan's early insights , culminating in the demonstration by Augustin de Candolle
that the leaf movements made by Mimosa pudica in constant darkness displayed a free-running periodicity just off 24 hours (~23 hours) and his suggestion that light acted as a daily resetting signal that synchronized Mimosa pudica's endogenous timekeeping to a period and phase closely aligned with the solar light-dark cycle (in other words, photoentrainment; ).
In studies on the plant-pathogen interaction involving elevations in the C[O.sub.2] levels, Lake & Wade (2009) observed that resistant varieties of Arabidopsis thaliana treated with concentrations of 800 [micro]mol/molC[O.sub.2] presented a greater number of stomata, becoming more sensitive to mildew (Erysiphe cichoracearum de Candolle