Showing papers in "Annals of Botany in 1990"

TL;DR: The % N of all crops declined sharply with increase in W but this decline differed between C3 and C4 crops.

TL;DR: A physiologically based mathematical function was developed which assumes that, when light is limiting, CGR is proportional to intercepted radiation and therefore to an exponential function of leaf area, and the name 'expolinear' growth equation is proposed.

TL;DR: Etude du stockage de l'amidon, du point de vue concentration and localisation dans les differents tissus, afin d'etablir une correlation avec le mecanisme d'adaptation de chaque espece.

TL;DR: Dans les inflorescences de Sauromatum guttatum, la production de chaleur est induite par l'acide salicyclique a tres faible concentration ainsi que 30 especes non productrices sont etudiees.

TL;DR: A general theoretical approach is developed to analyze the morphological and physiological responses of plants to nitrogen availability.

TL;DR: The quantitative relation between seed longevity and temperature does not vary among diverse species, and the coefficient of the viability equation did not differ significantly among the eight species despite their contrasting taxonomy.

TL;DR: Effets de l'enrichissement en CO 2 atmospherique, observes sur 4 clones de peupliers; du point de vue modification of the structure and of l'anatomie des feuilles et variation of theepaisseur des tissus.

TL;DR: The radicles of leeks are used to test quantitative predictions of the anchorage model more thoroughly, and to obtain information about the behaviour of another type of root.

TL;DR: Cette etude est une comparaison des valeurs de teneur en eau des semences de huit especes vegetales, au dessous desquelles la relation logorithmique entre la longevite desSemences et leur tneur en Eau n'est plus verifiee.

TL;DR: Analyse de l'inhibition de the respiration a court terme ou a long terme selon les especes.

TL;DR: Determination des stades critiques du developpement auxquels les divers parametres sont les plus sensibles aux temperatures elevees sont sur leur sensibilite au traitement thermique.

TL;DR: Effets de l'enrichissement en CO 2 atmospherique observe sur 4 clones de peupliers du point de vue modification des proprietes des surfaces foliaires: densite des cellules epidermiques, densite et taille des tomates et conductance stomatique.

TL;DR: To extend the study on the possible functional significance of Sclerophylly in terms of plan water relations, it was decided to take into consideration species phillogenetically nearer to one another.

TL;DR: These results are discussed in the light of previous findings, when it was suggested that the onset of storage protein deposition is linked to the cessation of mitosis and subsequent cell expansion rather than to elevated cellular DNA levels as once thought.

TL;DR: It is found that three barley genotypes with differing susceptibilities to boron toxicity have different transport characteristics, but because of several similarities in the transport characteristics of B(OH) 3 and Si( OH) 4, the uptake of silicon by the genotypes was also compared.

TL;DR: Water relations (leaf water potential, leaf solute potential, turgor potential, relative water content and stomatal conductance) of eleven species are measured.

TL;DR: Cet article traite de l'origine et du mode de developpement des embryons somatiques de racines de Chicoree and des modifications de la paroi cellulaire aux sites d'initiation of l'embryogenese.

TL;DR: Les nombreux extraits de plantes, les substances endogenes ou exogenes qui favorisent ou inhibent la formation of racines adventives sur des morceaux de tiges sont decrits.

TL;DR: The interactive effect of NaCl salinity and GA 3 on the endogenous level of auxin, the most poorly studied hormone system under saline conditions, as well as the activity of two cell wall loosening enzymes, namely cellulose and pectin lyase, during the extension growth of rice leaves are studied.

TL;DR: Etude sur six clones de pomme de terre en culture hydroponique aux temperatures optimale et supra-optimale, observation de differences significatives entre les clones permettant de selectionner des genotypes thermoresistants et thermosensibles.

TL;DR: L'influence de the localisation and the climat sur the composition du fruit de la floraison a la recolte est etudiee chez le kiwi.

TL;DR: La presence des genes est confirmee par analyse en Southern blot.

TL;DR: The monomolecular function is used as an empirical model of the photosynthetic rate/PFD relationship and the rectangular hyperbola in a three-parameter form which describes net photosynthesis and allows dark respiration and the light compensation point to be estimated.

TL;DR: Effets du vieillissement, de l'elevation de la pression osmotique, et de la deshydratation, sur la viabilite et le temps moyen de germination des grains de ble, ainsi que sur l'incorporation de L-leucine and de thymidine marquees dans les tissus embryonnaires.

TL;DR: A more reproducible relationship between metal uptake and physiological response is established and these responses to the quantity and location of metals taken up by the moss are related.

TL;DR: Ces recherches mettent en evidence l'origine histologique des cals, et les stades de developpement pour lesquels l'embryogenese somatique a lieu.

TL;DR: Morphometric analysis showed that, in leaf surface view, glandular scales are about 17-fold larger than glandular hairs, and the theoretical essential oil yield of 100 g dry leaves of S thymbra was estimated to be 3 54 % (secretory activity of glandsular scales only).

TL;DR: L'identification des embryons est realisee grâce a une coloration au carmin acetique and a l'observation en microscopie optique.