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      Morphoanatomy of fruit, seed and seedling of Ormosia paraensis Ducke Translated title: Morfoanatomia do fruto, da semente e da plântula de Ormosia paraensis Ducke

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          Abstract

          Ormosia paraensis Ducke, known as "tento", has seeds that are used to make handcrafts and wood that is worked on by furniture makers. For forest identification and seeds technology, the information about the morphoanatomy of their fruits, seeds and seedlings is scarce. Therefore, the purpose of this study was to morphoanatomically describe the fruit, seeds and the post-seminal development of "tento". For the morphoanatomical description, the evaluations were examined by optical and electron microscopy scanning. The fruit is a nutant legume, brown to black, dehiscent and with one or two seeds of lateral placentation, being the epicarp slim, the mesocarp woody and the endocarp spongy, measuring about 4.4 cm, 3.9 cm and 2.0 cm in length, width and thickness, respectively. The seeds are bitegmic, exalbuminous and rounded with average dimensions: length of 12.36 mm, width of 9.68 mm and thickness of 8.03 mm. The "tento" seedlings have simple and alternate leaves, with tap roots and cylindrical stem, being its germination hypogeal cryptocotyledonary.

          Translated abstract

          Resumo Ormosia paraensis Ducke, conhecida popularmente por tento, possui sementes ornamentais amplamente usadas na confecção de biojóias, assim como, sua madeira é usada na indústria moveleira. Para a identificação florestal e tecnologia de sementes, as informações sobre a morfoanatomia de seus frutos, sementes e plântulas são escassas. Desta forma, o objetivo no presente trabalho foi descrever morfoanatomicamente o fruto, a semente e a plântula de tento. Para a descrição morfoanatômica de tento, os frutos, as sementes e as plântulas foram avaliados por meio de microscopia óptica e eletrônica de varredura. O fruto de tento é um legume nucóide, pseudo-septado, castanho a preto, deiscente, portando uma ou duas sementes, de placentação lateral, sendo o epicarpo delgado, mesocarpo lenhoso e endocarpo esponjoso, medindo cerca de 4,4; 3,9 e 2,0 cm de comprimento, largura e espessura, respectivamente. As sementes são bitegumentadas, exalbuminosas, arredondadas, com dimensões médias: comprimento de 12,36 mm, largura de 9,68 mm e espessura de 8,03 mm. As plântulas de tento apresentam folhas simples e alternas, com raiz pivotante e caule cilíndrico, sendo a germinação do tipo hipógea criptocotiledonar.

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          Plant microtechnique

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            Seed. Ecology, Biogeography and Evolution of Dormancy and Germination

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              Ecofisiologia vegetal

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                jss
                Journal of Seed Science
                J. Seed Sci.
                ABRATES - Associação Brasileira de Tecnologia de Sementes (Londrina )
                2317-1545
                December 2015
                : 37
                : 4
                : 192-198
                Affiliations
                [1 ] Universidade do Estado do Amapá Brazil
                [2 ] Universidade Estadual Paulista Brazil
                [3 ] Universidade Estadual Paulista Brazil
                Article
                S2317-15372015000400192
                10.1590/2317-1545v37n4151436
                0589b3f8-151b-4938-b34a-b9e7a0d1388c

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=2317-1537&lng=en
                Categories
                PLANT SCIENCES

                Plant science & Botany
                morphology,post-seminal development,germination,Fabaceae,morfologia,desenvolvimento pós-seminal,germinação

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