Consulta: subjectFacets:"Germination test"
Registros recuperados: 6
Data/hora: 05/06/2024 17:57:37

A Rapid Phenotyping Method for Imazamox Resistance in Wheat
Provedor de dados: 87
Autores: BRECCIA,G.; BISIO,M.B.; PICARDI,L.; NESTARES,G.
ABSTRACT: The availability of imidazolinone (IMI) resistant cultivars has provided an effective option for weed control in wheat production systems. IMI herbicides control several weeds, including Avena fatua and Lolium multiflorum, which are the most frequent grass weeds in wheat crops of the Argentine Pampas. The aim of this study was to develop a soil-less method that allows rapid phenotyping of IMI resistance in wheat. Nine wheat cultivars differing in IMI resistance were evaluated through a between-paper germination method. Herbicide concentrations required to reduce shoot and root length by 50% for resistant cultivars were &gt; 75 fold that of the susceptible cultivars. The response of resistant and susceptible commercial cultivars was assessed in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Imidazolinone; Herbicide resistance; Germination test; Triticum aestivum L.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100344

Temperatures and qualities of light in Niger ( Guizotia abyssinica (L.f.) Cass.) seeds germination in Mato Grosso do Sul, Brazil
Provedor de dados: 109
Autores: Baptista Gordin,Carla Regina; Quintão Scalon,Silvana de Paula.
Abstract For each vegetable species, there is a specific environment conditions to occur the seed germination process. However, there is a little information regarding the necessary conditions for Niger (Guizotia abyssinica (L.f.) Cass.) seeds germination. The aim of this research was to evaluate the influence of different temperatures and types of light on Niger (Guizotia abyssinica (L.f.) Cass.) seeds germination. Seeds were sown on two sheets of "germitest" paper inside plastic box type "gerbox" and placed on B.O.D. Treatments were constituted of two constant temperatures (15 ºC and 25 ºC, respectively) and an alternating temperature (20-30 ºC) under 10 hours for the lowest temperature and 14 hours for the highest temperature and they were associated to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environment conditions; Germination test; Non-photoblastic; Oilseed crop; Wavelengths.
Ano: 2017
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000300403

Primary leaf growth and coleoptile length in maize seedlings
Provedor de dados: 1
Autores: Lopes, Camila Aparecida; Carvalho, Maria Laene Moreira de; Vasconcelos, Michelle Conceição; Ribeiro, Ana Maria Pereira; Santos, Heloísa Oliveira dos.
Evaluation of the physiological potential of maize seeds during the certification process is performed by a germination test. However, some tests show a delay in the growth of aerial seedling organs that does not reflect seed lot behavior in the field. This study aims to investigate the effects of genotype, water, light and temperature on differential primary leaf growth compared to coleoptile length in maize seedlings. Seeds from two simple hybrids and their reciprocal crosses that showed slow primary leaf growth were evaluated according to physiological quality, morphology, histochemistry, and enzymatic expression. There were differences among maize genotypes regarding initial primary leaf growth when compared to the coleoptile, especially when...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências agrárias; Agronomia; Fitotecnia ea mays L.; Germination test; Lignin; Enzymes. Qualidade de sementes.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35366

Primary leaf growth and coleoptile length in maize seedlings
Provedor de dados: 1
Autores: Lopes, Camila Aparecida; Carvalho, Maria Laene Moreira de; Vasconcelos, Michelle Conceição; Ribeiro, Ana Maria Pereira; Santos, Heloísa Oliveira dos.
Evaluation of the physiological potential of maize seeds during the certification process is performed by a germination test. However, some tests show a delay in the growth of aerial seedling organs that does not reflect seed lot behavior in the field. This study aims to investigate the effects of genotype, water, light and temperature on differential primary leaf growth compared to coleoptile length in maize seedlings. Seeds from two simple hybrids and their reciprocal crosses that showed slow primary leaf growth were evaluated according to physiological quality, morphology, histochemistry, and enzymatic expression. There were differences among maize genotypes regarding initial primary leaf growth when compared to the coleoptile, especially when...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ea mays L.; Germination test; Lignin; Enzymes.; Qualidade de sementes.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/35366

Avaliação do tipo de substrato e do período de armazenamento para a germinação de sementes de Cordia glabrata (Mart.) DC. - DOI: 10.4025/actascibiolsci.v31i3.1013
Provedor de dados: 3
Autores: Oliveira, Ademir Kleber Morbeck; UNIDERP; Alves, Felipe Fernandes; UNIDERP; Gadum, Juliana; UNIDERP.
Informações sobre a viabilidade e substratos adequados para a germinação de sementes de espécies arbóreas nativas são escassas. Cordia glabrata (louro-preto), espécie pioneira e de ampla distribuição, está incluída entre essas espécies. Suas características permitem a utilização em ornamentação, na prática apícola e na medicina popular. Levando em conta seu potencial de utilização, este trabalho teve por objetivo avaliar as taxas de germinação, em diferentes substratos, de sementes recém-colhidas e armazenadas até 120 dias em laboratório, as quais foram coletadas no Pantanal do Rio Negro, Estado do Mato Grosso do Sul. Foram realizados testes com sementes recém-colhidas e após 30, 60, 90 e 120 dias de armazenamento, em três tipos de substrato (papel-filtro,...
Tipo: Germinação
Palavras-chave: 2.00.00.00-6    Ciências Biológicas sementes florestais; Teste de germinação; Conservação da semente; Viabilidade; Louro-preto Ecofisiologia Vegetal forest seeds; Germination test; Seed conservation; Feasibility; Louro preto.
Ano: 2009
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1013

Eucalyptus cloeziana seed count data: a comparative analysis of statistical models
Provedor de dados: 64
Autores: Michelon,Thomas Bruno; Taconeli,Cesar Augusto; Vieira,Elisa Serra Negra; Panobianco,Maristela.
ABSTRACT Generalized linear models (GLMs) are an extension of the linear model and include the normal, Poisson, and negative binomial distributions. Although GLMs were introduced in 1972, most seed technology studies, especially those involving count data, such as germination tests of seeds from the genus Eucalyptus, still using the analysis of variance, without analysis of the fit of other models. Thus, this study aimed to evaluate the most appropriate model in the GLM class for seed count data of Eucalyptus cloeziana. Data were obtained from a germination test using seeds from three lots of E. cloeziana. Each lot was separated by sieving into three material fractions based on size: small (&lt;0.84 mm), medium (from 1.18 to 1.00 mm), and large (&gt;1.18...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Generalized linear models; Poisson; ANOVA; Germination test.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100243