SciELO - Scientific Electronic Library Online

vol.41 issue3Plant growth and vigor of bean seeds in response to the exogenous application of gibberellic acidEcophysiology of Brachiaria decumbens in grazing systems author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links

  • Have no similar articlesSimilars in SciELO


Revista de Ciências Agrárias

Print version ISSN 0871-018X


ATAIDE, Wander et al. Growth and gas exchange of Tachigali vulgaris submitted to water deficiency. Rev. de Ciências Agrárias [online]. 2018, vol.41, n.3, pp.191-200. ISSN 0871-018X.

Tachigali vulgaris L.G. Silva & H.C. Lima is a pioneer species, colonizer of marginal lands and road margins, which often initiates secondary succession in open areas by the intense germination of their seeds in the soil. Studies on fast-growing Amazon forest species are very scarce, when it refers to the influence of abiotic factors on an ecophysiology of the species. The experiment was conducted in a greenhouse belong to laboratory of Estudos da Biodiversidade de Plantas Superiores of the Federal Rural University of Amazonia. The experiment was completely randomized in split plot scheme, two times: five and ten days of water suspension, and two water conditions: control and water deficit, with four replications with one plant /pot. The water deficiency condition for ten days negatively affected the growth and indicators of gas exchange (A, gs and E). Adding to the fact that the experiment occurred in a year of extreme climatic anomaly (El Niño), the plants did not resist and perished in the internal conditions of greenhouse. The water deficiency condition altered the growth parameters and the environmental relations of the Tachigali vulgaris species, thus evidencing its low physiological plasticity to this abiotic condition.

Keywords : Photosynthesis; conductance; dry mass; white Tachi.

        · abstract in Portuguese     · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License