Morphophysiology of Germination among Seeds of Pau-rainha （Centrolobium paraense） Collected in the State of Roraima

This work intended to characterize the seed morphology, water absorption patterns and to determine the vigor among different colored seeds of the species Centrolobium paraense （Fabaceae）. For this purpose, samaras which were opened were collected from two sites---Agua Boa （AB） and Taiano （TAI） lo~at...

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Published in:农业科学与技术：B 2016, Vol.6 (6), p.371-379
Main Author: Luis Augusto Melo Schwengber Oscar Jose Smiderle Aline das Gracas Souza Jose Maria Arcanjo Alves Dalton Roberto Schwengber Cylles Zara dos Reis Barbosa
Format: Article
Language:Chinese
Subjects:
形态
收集
深棕色
生理学
生理素质
种子
种皮颜色
萌发
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Summary:This work intended to characterize the seed morphology, water absorption patterns and to determine the vigor among different colored seeds of the species Centrolobium paraense （Fabaceae）. For this purpose, samaras which were opened were collected from two sites---Agua Boa （AB） and Taiano （TAI） lo~ated in the state of Roraima, and the seeds screened by the coat coloration （light brown/intermediate brown/dark brown） for four conditions （two sites and two years of collection）. Evaluation of water absorption by the seeds at different periods, mass of 1,000 seeds, water content, electrical conductivity （EC）, seedling emergence and emergence velocity （EV） were performed. The water absorption by the seeds of Centrolobium paraense indicates coat permeability to water and distinct absorptions according to coat colorations. The EC test is efficient in determining the physiological quality of seeds of Centrolobium paraense. Seed coat coloration affects the physiological quality of the seeds of Centrolobium paraense. It
ISSN:2161-6264