Morfoanatomia foliar de azevém no sub-bosque de espécies arbóreas em sistemas agroflorestais

Schmidt, Denise; Caron, Braulio Otomar; Pilau, Janine; Nardino, Maicon; Elli, Elvis Felipe

doi:10.1590/0034-737x201764040005

Cited by 19 publications

(11 citation statements)

References 26 publications

(22 reference statements)

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“…The thickness and number of layers of the palisade parenchyma are usually related to the habitat of the individual species, and it is mainly affected by the humidity and the extent of luminous intensity (Hlwatika & Bhat 2002, Rossatto & Kolb 2010Schmidt et al 2017;Muniz et al 2018). However, the number of layers is fixed for some species (Solereder 1908).…”

Section: Discussionmentioning

confidence: 99%

Leaf Morphoanatomy of Diploon Cronquist (Sapotaceae Juss.)

Lima

Ferreira

et al. 2018

Biota Neotrop.

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Diploon is a monospecific genus represented by Diploon cuspidatum, an arboreal species that has morphological characteristics distinct from those of other Sapotaceae species. In this study, Diploon cuspidatum leaves were characterized morphoanatomically in order to reveal additional diagnostic characters of their external morphology of the genus. The Diploon petiole presents shape and arrangement of the vascular system flat-convex, occasionally with one or two accessory bundles, many laticifers, and many prismatic crystals. The midrib is biconvex with a U-shaped cuticle on the abaxial side, and laticifers are associated with the vascular tissues. Mesophyll is dorsiventral, palisade parenchyma has two cell layers, T- and Y-shaped malpighiaceous trichomes are on the abaxial epidermis with a small stalk cell and long arm. The venation pattern is brochidodromous. Intersecondary veins run parallel to the secondary veins, and quaternary veins branch freely. Higher order veins are not present. Morphoanatomical analysis revealed important characteristics that reveal a set of structures common to Sapotaceae, in addition to characters that are important for the recognition and identification of D. cuspidatum.

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Section: Discussionmentioning

confidence: 99%

Leaf Morphoanatomy of Diploon Cronquist (Sapotaceae Juss.)

Lima

Ferreira

et al. 2018

Biota Neotrop.

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“…Thus, it is inferred that higher levels of shading resulted in increased radiation use efficiency. These results may be related to the growing environment, in that under limited solar radiation, the plants present differences in morphological characteristics, especially of the leaves, due to acclimatization to this treatment condition (Schmidt et al, 2017).…”

Section: Resultsmentioning

confidence: 98%

Effect of artificial shading on soybean growth and yield

Tibolla

Schwerz

Sgarbossa

et al. 2019

Agraria

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Soybean (Glycine max) stands out in the agricultural scene, being one of the main sources of protein and oil for human and animal nutrition. The aim of this study was to evaluate the growth, radiation use efficiency, and the yield of soybean, cultivated under four levels of artificial shading to simulate the environment provided by an agroforestry system. A field experiment was conducted in Frederico Westphalen, Rio Grande do Sul, Brazil, from December 2015 to April 2016. The experimental design was completely randomized with four levels of shading (0, 30, 50, and 70%) as treatment, and eight collections of plants at specific growth stages. The growth and yield traits of the soybean crop are influenced differently as a function of shade levels. Thus, the simulation of an agroforestry system from artificial shading allowed the recommendation of soybean cultivation for intercropping systems, provided that the interception of solar radiation by the tree component is less than 30%, in order to enable soybean cultivation. Efeito do sombreamento artificial no crescimento e produtividade da sojaRESUMO: A soja (Glycine max) destaca-se no cenário agrícola mundial, sendo uma das principais fontes de proteína e óleo para nutrição humana e animal. O objetivo deste estudo foi avaliar o crescimento, a eficiência do uso da radiação e a produtividade da soja cultivada sob quatro níveis de sombreamento artificial visando similar o ambiente proporcionado por um Sistema agroflorestal. Um experiment de campo foi conduzido em Frederico Westphalen, Rio Grande do Sul, de dezembro de 2015 a abril de 2016. O delineamento experimental empregado foi o inteiramente casualizado com quatro níveis de sombreamento (0, 30, 50 e 70%) como tratamento, e oito coletas de plantas em estádios específicos de crescimento. As características de crescimento e produtivas da cultura da soja são influenciadas diferentemente em função dos níveis de sombreamento. Assim, a simulação de um Sistema agroflorestal a partir de sombreamento artificial permitiu a recomendação do cultivo da soja para sistemas consorciados, desde que a interceptação da radiação solar pelo componente arbóreo seja inferior a 30%, a fim de viabilizar o cultivo da soja. Palavras-chave: sistemas agroflorestais; Glycine max; análise de crescimento; variáveis meteorológicas; radiação solarEffect of artificial shading on soybean growth and yield Rev. Bras.

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“…The red pigmentation is correlated with an increasing of secondary metabolites (antioxidants), such as xanthophyll, and other variations of carotenoids. This is an important nutritional aspect of fruits, which tend to have higher levels of antioxidants compounds (Schmidt et al, 2017). Torres et al (2009) associated the increases of "a" values in tomato ripening.…”

Section: Resultsmentioning

confidence: 99%