Chamaecyparis are ornamental plants that are used extensively in temperate-zone landscapes worldwide. However, due to their low tolerance to environmental stresses Chamaecyparis often perform poorly in urban landscapes. The objective of this research was to evaluate rootstocks of selected Cupressaceae taxa to determine their adaptability to poor drainage and high temperatures found commonly in ...

Departments of Anatomy Histology and Forensic Medicine and Clinical Physiopathology (AP,MM,GBV), Endocrinology (CC,PF,RS,CMR) and Andrology (MM,ML) Units, Genetic Unit (EP,FT), Departments of Internal Medicine (RGR), Preclinical and Clinical Pharmacology (PF), University of Florence, School of Medicine, Italy and Department of Experimental and Clinical Medicine (TB), University of Catanzaro, It...

We aimed to identify functional differences between different sections of the thallus Ulva australis and develop tissue-endpoint combinations assess toxicity six metals (i.e., Ag, As, Cd, Cr, Cu, Ni). EC50 values for these in three were obtained multiple endpoints: relative growth rate (RGR), chlorophyll a fluorescence, pigment contents, expression photosynthesis-related gene, rbcL. The respons...

The worldwide plant economic spectrum hypothesis predicts that leaf, stem, and root traits are correlated across vascular plant species because carbon gain depends on leaves being adequately supplied with water and nutrients, and because construction of each organ involves a trade-off between performance and persistence. Despite its logical and intuitive appeal, this hypothesis has received mix...

BACKGROUND AND AIMS Lianas are expected to differ from trees in their growth strategies. As a result these two groups of woody species will have different spatial distributions: lianas are more common in high light environments. This study determines the differences in growth patterns, biomass allocation and leaf traits in five closely related liana and tree species of the genus Bauhinia. MET...

In tropical forests, trees compete not only with other trees, but also with lianas, which may limit tree growth and regeneration. Liana effects may depend on the availability of aboveand below-ground resources and differ between tree species. We conducted a shade house experiment to test the effect of light (4% and 35% full sun, using neutral-density screen) on the competitive interactions betw...

This study was conducted in order to investigate the effect of drought stress and Azomite fertilizer on some physiological traits of two tomato (Lycopersicon esculentum M.) cultivars (izmir and Izabella). A randomized complete design with factorial arrangement with three replications was used. Treatments consisted of three levels of irrigation including FC (control), FC (mild drought stress), a...

Rosmarinus officinalis is a well-studied species; however, R. essential oil (EO) from West highlands of Algeria was not investigated chemically and biologically. In this context, chemical composition EOs obtained leaves stem were determined by GC/MS analysis their antifungal activity against Fusarium oxysporum f. sp. albedinis (Foa) evaluated. The indicated that monoterpenes the dominant class ...

Studies of tree seedling physiology and growth under field conditions provide information on the mechanisms underlying inter- and intraspecific differences in growth and survival at a critical period during forest regeneration. I compared photosynthetic physiology, growth and biomass allocation in seedlings of three shade-tolerant tree species, Virola koschynii Warb., Dipteryx panamensis (Pitti...

This paper investigates the effects of uptake of nitrate and the availability of internal N reserves on growth rate in times of restricted supply, and examines the extent to which the response is mediated by the different pools of N (nitrate N, organic N and total N) in the plant. Hydroponic experiments were carried out with young lettuce plants (Lactuca sativa L.) to compare responses to eithe...