Tropical and subtropical soils are usually acidic and have high concentrations of aluminum
(Al). Aluminum toxicity in plants is caused by the high affinity of the Al cation for cell walls …

Improvements in the traditional production system of peach seedlings, with a focus on the
use of selected rootstocks, tend to minimize some of the problems experienced with this crop …

Conduziu-se um experimento em casa-de-vegetação no período de novembro de 2000 a
fevereiro de 2001 com o objetivo de avaliar os efeitos de combinações de doses de …

Interspecific and intraspecific differences in the efficiency of utilization of soil phosphorus (P)
are explained, in part, by plant morphological and physiological variations, which …

This study compares photosynthetic and structural features of Dichaea cogniauxiana and
Epidendrum secundum leaves and roots. The diurnal titratable acidity fluctuations indicated …

Genetic variation in plant growth under limited phosphorus (P) supply is necessary to obtain
more productive cultivars on low P-available soils. Two pot experiments were conducted to …

Production of common bean (Phaseolus vulgaris L.) in the tropics is often limited by low soil
P availability, and P deficiency is therefore a major nutritional constraint to N2 fixation of …

An experiment was conducted to evaluate the effect of plant ontogeny on traits associated
with absorption and utilization of P by common bean (Phaseolus vulgaris L.) cultivars under …

The objective of this work was to study morphogenic characteristics, and dry matter
production of roots and shoots of marandu palisadegrass (Brachiaria brizantha cv. Marandu) …

RESUMO A redução do ganho em biomassa de lenho em árvores tem sido atribuída à
ocorrência de deformações radiculares ainda na fase de viveiro. O objetivo deste trabalho …