Differential heading behavior of some Digitaria adscendens Henr. populations.

Antioxidant Potential of Asparagus adscendens

Asymptotic Behavior in Some Classes of Functional Differential Equations

Abstract: In this paper we shall investigate the asymptotic behavior (at +∞) of certain classes of functional differential equations, involving causal (abstract Volterra) operators. Vast literature exists on this subject, mainly in the case of ordinary differential equations, delay equations and integro-differential equations. We mention here the book, non-linear differential equations, by G. S...

Differential content of glyphosate and its metabolites in Digitaria insularis biotypes

Experiments were carried out in controlled conditions to analyze the role of metabolism of glyphosate in Digitaria insularis (sourgrass) biotypes with differential response to the herbicide.

Some criteria of regeneration density in young beech populations

Some criteria of density in beech saplings were studied in various forest associations (mainly Galio odorati-Fagetum typicum) growing in the submontane region near Zurich (Swiss Central Plateau). The sample plots were established in regeneration gaps resulting from Swiss irregular shelter wood system (Femelschlag). Five sample plots, each 2x2m in 3 transects (a total of 15 plots in each gap, x...

MEIOTIC STUDIES OF SOME AVENA SPECIES AND POPULATIONS IN IRAN

Eleven populations of five Avena species were analysed for meiotic characters including chiasma frequency and distribution as well as chromosomal association and segregation. Plants of a single population of A. eriantha showed the presence of 2n = 14 (diploid) and 2n = 4x = 28 chromosome number. Populations of A. barbata and A. wiestii possessed n = 14, while populations of A. sterilis ssp. lud...