Comparative studies of photosynthetic physiology in rain forest trees have focused on differences related to successional status, with the general finding that earlysuccessional species tend to show physiological characteristics of sun plants, while latesuccessional species show shade-plant characteristics. The present study examines analogous evolutionary responses to vertical gradients in lig...

Vesicular arbuscular mycorrhizae (VAM) fungi commonly infect plant roots, forming beneficial symbiotic relationships. The primary benefits of VAM plants are the enhanced acquisition and recycling of nutrients, particularly P, as well as soil moisture. This study compared the relationship between soil and leaf chemical elements of sugarcane variety N12 with low and high % mycorrhization (%myc). ...

A 28-day feeding trial was conducted to evaluate the effects of dietary inclusion of Neem (Azadirachta indica) leaf meal on the haematological and serum biochemical indices of starter broilers. The Neem leaves used in the experiment were manually harvested, air-dried and milled to become Neem leaf meal. The Neem leaf meal was included in broiler starter diets at 0, 2.5, 5.0, 7.5 and 10% levels,...

Leaf and fine root morphology and physiology have been found to vary considerably among tree species, but not much is known about intraspecific variation in root traits and their relatedness to leaf traits. Various aspen progenies (Populus tremula and P. tremuloides) with different growth performance are used in short-rotation forestry. Hence, a better understanding of the link between root tra...

1. Despite the ubiquity of ferns and at least tacit recognition by botanists that their physiology is unique among land plants, most studies on fern physiology have focused on only a few, locally distributed, usually distantly related species. No previous study has attempted to examine physiological adaptations in a group of widespread taxa that are closely related and whose relationships are w...

Global climate change will modify plants in terms of growth and physiology. To better understand the consequences this effect, responses leaf water relations nitrogen (N) use efficiency barley tomato to elevated CO2 (e[CO2], 800 ppm) combined with progressive drought stress at two levels N supply (N1, 0.5 g pot?1 N2, 1.0 pot?1) were studied. The grown separate phytotrons ambient (a[CO2], 400 e[...

The effects of CO2 enrichment on the growth and physiology of maize were investigated at the molecular, biochemical, leaf, and canopy levels. Maize plants were grown in sunlit soil–plant–atmosphere research (SPAR) chambers at ambient (370 lmol mol ) or elevated (750 lmol mol ) atmospheric carbon dioxide concentration (Ca) under wellwatered and fertilized conditions. Canopy gas exchange rates an...