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Water stress response of Tricepiro and its progenitors Triticale and Trigopiro Phyton
Ruiz,MA; Golberg,A; Molas,ML.
In semiarid regions rainfall is often scarce and erratic in space and time, making valuable the exploration of news genotypes with superior behavior in dry land systems. Tricepiro (X Triticosecale Wittmack x X Agrotriticum Ciferri & Giacom) is a synthetic cereal with long cycle and high biomass production in semiarid environments. However its performance under controlled water stress has not yet been evaluated. The aim of this work was to investigate the effect of water stress on tricepiro genotypes in comparison with their progenitors: triticale and trigopiro. Morphophysiological traits related to forage yield were evaluated in the greenhouse and the field. In the greenhouse, water potential, stomatal resistance, root biomass and wilted/green...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tricepiro; Synthetic cereal; Drought; Semiarid environment.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572014000200006
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Sonic anemometry and sediment traps to evaluate the effectiveness of windbreaks in preventing wind erosion Scientia Agricola
López,Alejandro; Valera,Diego Luis; Molina-Aiz,Francisco Domingo; Lozano,Francisco Javier; Asensio,Carlos.
ABSTRACT The present work analyzes the effectiveness of windbreaks against wind erosion through the study of streamline patterns and turbulent flow by means of sonic anemometry and sediment traps. To this end, windbreaks composed of plastic meshes (7.5 m long and 0.7 m tall) were used. Windbreaks are a good means to reduce wind erosion, as they produce a positive effect on the characteristics of air currents that are related to wind erosion processes. Due to their ease of installation and dismantling, plastic meshes are widely used in areas where they are not required permanently. In our study, the use of a mesh of 13 × 30 threads cm−2 and 39 % porosity resulted in an average reduction of 85 % in face velocity at a height of 0.4 m and a distance of 1 m...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Streamline patterns; Semiarid environment; Turbulent flow; Energy levels; Olive.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162017000600425
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Predation on Tropidurus hispidus (Squamata: Tropiduridae) by Lasiodora klugi (Aranea: Theraphosidae) in the semiarid caatinga region of northeastern Brazil Biota Neotropica
Vieira,Washington Luiz Silva; Gonçalves,Maria Betânia Ribeiro; Nóbrega,Rômulo Pantoja.
A predation event on Tropidurus hispidus (Tropiduridae) by the crab spider Lasiodora klugi (Theraphosidae) was observed in an arboreal caatinga area in northeastern Brazil. Arthropods are potential predators of small vertebrates and researchers have reported predation events involving spiders and herpetofauna in Neotropical regions. As such, the present short communication is the second case of predation of spiders on Tropidurus lizards in Brazil, and the first for the semiarid caatinga, reinforcing the argument that large spiders have relevant roles as predators of these animals.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Natural history; Prey-predator relationships; Lacertilia; Mygalomorphae; Semiarid environment.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000400028
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