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Ciência Rural
Article . 2008
Data sources: DOAJ
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Superação da dormência de sementes de Schinopsis brasiliensis Dormancy loss in seed of Schinopsis brasiliensis

Authors: Maria da Conceição Prado de Oliveira; Geraldo José de Oliveira;

Superação da dormência de sementes de Schinopsis brasiliensis Dormancy loss in seed of Schinopsis brasiliensis

Abstract

Schinopsis brasiliensis Engler (Anacardiaceae), popularmente conhecida como baraúna ou brauna, é uma árvore típica da caatinga, tem sementes de germinação difícil e demorada. O trabalho teve por objetivo avaliar a germinação das sementes de S. brasiliensis e indicar técnicas que tornem mais eficiente esse processo. Os frutos foram coletados em novembro de 2001 (período de frutificação), na Fazenda Juriti, município de Caruaru, Pernambuco, Brasil, na região semi-árida. Foram utilizados frutos recém-coletados, testando-se: frutos com e sem epicarpo e mesocarpo, lavados e sem lavar. Diferentes metodologias foram usadas para superar a dormência do endocarpo de frutos armazenados por trinta dias em saco de papel Kraft, em câmara fria e seca (15±2°C, 50%UR). Em função dos resultados apresentados, pode-se concluir que a melhor maneira de se obter uma germinação mais regular, rápida e completa das sementes de S. brasiliensis é a remoção do epicarpo e do mesocarpo e a realização da semeadura após 25 a 30 dias de armazenamento (pré-secagem) em areia úmida.Schinopsis brasiliensis Engler (Anacardiaceae), commonly known as "baraúna or brauna", a typical "Caatinga" tree. It presents seeds with difficult and delayed germination. This research had the objective to evaluate the germination seeds of S. brasiliensis, and to suggest techniques that make more efficient the germination process. The fruit were collected on November 2001 (fructification period) in Juriti Farm, municipality of Caruaru, Pernambuco State, Brazil, in semi-arid region. It were used newly collected fruit to the tests of: fruit with and without epicarp and mesocarp, washed fruit and not washed fruit. Different methods were used to overcome the endocarp dormancy of fruit stored during 30 days in a cold and dry chamber (15±2°C, 50%UR) kept in Kraft paper bags. According to the results, the best way to get a regular, fast and completed germination of S. brasiliensis is the extraction of epicarp and mesocarp and to sow in humid sand after 25 to 30 days stored (pre-drying).

Keywords

S, Agriculture (General), germinação, Agriculture, mechanical scarification, escarificação mecânica, velocidade de germinação, escarificação ácida, S1-972, germination, germination velocity, acid scarification

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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