<?xml version="1.0" encoding="UTF-8"?>
<mods xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.loc.gov/mods/v3" version="3.1" xsi:schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-1.xsd">
  <titleInfo>
    <title>Physiological and biochemical changes in Cedrela fissilis seeds during storage</title>
  </titleInfo>
  <name type="personal">
    <namePart>Silva, David da</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Stuepp, Carlos André</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Wendling, Ivar</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Helm, Cristiane Vieira</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Angelo, Alessandro Camargo</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <typeOfResource>text</typeOfResource>
  <genre authority="marc">periodical</genre>
  <genre authority="marc">abstract or summary</genre>
  <originInfo>
    <place>
      <placeTerm type="code" authority="marccountry">bl.</placeTerm>
    </place>
    <issuance>continuing</issuance>
  </originInfo>
  <language>
    <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
  </language>
  <abstract>
Abstract – The objective of this work was to evaluate the effect of storage on
the physiological quality of cedar (Cedrela fissilis) seeds, as well as to correlate
the germination and vigor of the seeds with their main biochemical changes.
The experiments were carried out in a completely randomized design, in a 3×5
factorial arrangement (three environments × five storage periods). Seeds were
stored for 0, 135, 280, 381, and 515 days in: a humidity chamber at 5±2ºC and
80% relative humidity, a drying chamber at 20±2ºC and 60% relative humidity,
and an uncontrolled environment (laboratory) at 16±10ºC and 60±25% relative
humidity. In all storage periods, the content of moisture on a wet basis and
the percentages of proteins, lipids, total carbohydrates, and ash were evaluated.
For the viability and vigor tests, the percentage of germination and mean
germination time were calculated. At sampling time, seeds showed 11.5% water
content, 85.5% germination, and mean germination time of 13.5 days, and all
were negatively influenced by storage period. Protein percentage showed a
downward trend, while that of carbohydrates increased as the storage period
was extended. Seed germination and vigor reduce drastically with storage.


Index terms: Cedrela fissilis, biochemical components, forest seeds, pink cedar, seed storage conditions.</abstract>
  <abstract>
Resumo – O objetivo deste trabalho foi avaliar o efeito do armazenamento
na qualidade fisiológica de sementes de cedro (Cedrela fissilis), bem como
correlacionar a germinação e o vigor das sementes com suas principais
alterações bioquímicas. Os experimentos foram conduzidos em delineamento
inteiramente casualizado, em arranjo fatorial 3×5 (três ambientes × cinco
períodos de armazenamento). As sementes foram armazenadas por 0, 135,
280, 381 e 515 dias, em: câmara úmida a 5±2ºC e 80% de umidade relativa,
câmara seca a 20±2ºC e 60% de umidade relativa e ambiente não controlado
(laboratório) a 16±10ºC e 60±25% de umidade relativa. Em todos os períodos
de armazenamento, foram avaliados o teor de umidade em base úmida e as
percentagens de proteínas, lipídios, carboidratos totais e cinzas. Para os testes de
viabilidade e vigor, foram calculados percentagem de germinação e tempo médio
de germinação. No momento da coleta, as sementes apresentaram 11,5% de água,
85,5% de germinação e tempo médio de germinação de 13,5 dias, e todas foram
negativamente influenciadas pelo período de armazenamento. A percentagem
de proteína mostrou tendência de queda, enquanto a de carboidratos aumentou
com o aumento do período de armazenamento. A germinação e o vigor das
sementes reduzem drasticamente com o armazenamento.


Termos para indexação: Cedrela fissilis, componentes bioquímicos, sementes florestais, cedro-rosa, condições de armazenamento de sementes.</abstract>
  <note>Publicação on-line; 40 ref.; 4 tables; Summaries (En, Pt)
</note>
  <subject>
    <topic>CEDRO</topic>
  </subject>
  <subject>
    <topic>SEMENTE FLORESTAL</topic>
  </subject>
  <subject>
    <topic>ARMAZENAMENTO</topic>
  </subject>
  <subject>
    <topic>BIOQUÍMICA</topic>
  </subject>
  <relatedItem type="host">
    <titleInfo>
      <title>Pesquisa Agropecuária Brasileira (Brazil)</title>
    </titleInfo>
    <originInfo>
      <publisher>Brasília-DF Empresa Brasileira de Pesquisa Agropecuária - EMBRAPA 1966-</publisher>
    </originInfo>
    <identifier>2023-436355</identifier>
    <identifier type="issn">0100-204X</identifier>
    <identifier type="local">BR2024000296</identifier>
    <part>
      <text>v. 55 p. 1-8; (2020)</text>
    </part>
  </relatedItem>
  <identifier type="uri">https://www.scielo.br/j/pab/a/svCSCd9SJPC5gxjsqhRjcXt/?format=pdf&amp;lang=en</identifier>
  <location>
    <url>https://www.scielo.br/j/pab/a/svCSCd9SJPC5gxjsqhRjcXt/?format=pdf&amp;lang=en</url>
  </location>
  <recordInfo>
    <recordContentSource authority="marcorg">BR-BrBNA</recordContentSource>
    <recordCreationDate encoding="marc">240409</recordCreationDate>
    <recordChangeDate encoding="iso8601">20240409140118.0</recordChangeDate>
    <languageOfCataloging>
      <languageTerm authority="iso639-2b" type="code">eng</languageTerm>
    </languageOfCataloging>
  </recordInfo>
</mods>
