A5036939265- Seed Germination and Physiology
- Growth and nutrition in plants
- Soil Management and Crop Yield
- Plant tissue culture and regeneration
- Agricultural and Food Sciences
- Leaf Properties and Growth Measurement
- Genetically Modified Organisms Research
- Botany and Plant Ecology Studies
- Plant Stress Responses and Tolerance
- Weed Control and Herbicide Applications
- Plant Genetic and Mutation Studies
- Genetic diversity and population structure
- Genetics and Plant Breeding
- Soybean genetics and cultivation
- Environmental and biological studies
- Agriculture and Biological Studies
- CRISPR and Genetic Engineering
- Sarcoma Diagnosis and Treatment
- Agricultural safety and regulations
- Seed and Plant Biochemistry
- Plant responses to elevated CO2
- Fungal Infections and Studies
- Plant Pathogenic Bacteria Studies
- Women's cancer prevention and management
- Fungal Plant Pathogen Control
Universidade Federal do Rio Grande do Norte
2016-2024
Coordenação de Aperfeicoamento de Pessoal de Nível Superior
2017
Vigor (United States)
2017
Polydoro Ernani de São Thiago University Hospital
2014
Universidade Federal de Pelotas
2014
Universidade Federal da Paraíba
2011-2012
Universidade Federal de Santa Catarina
2006-2007
Departamento de Ciência e Tecnologia
2006
Université Joseph Fourier
1997
Knowledge of the genetic diversity threatened tree species in Brazilian semiarid region may contribute to creation effective strategies for their preservation and future use.The aim this study was select ISSR (Inter-Simple Sequence Repeat) primers capable detecting polymorphism among Mimosa caesalpiniaefolia Benth.individuals a species.A total 27 were tested ability amplify genomic DNA three individuals (bulk); all them amplified regions between simple sequence repeats genome, however seven...
A catingueira (Caesalpinia pyramidalis Tul.) é uma espécie florestal pertencente à família Caesalpiniaceae, considerada endêmica do bioma Caatinga. O objetivo presente estudo foi avaliar o efeito da temperatura e substrato na germinação de sementes C. Tul. delineamento experimental utilizado inteiramente casualizado, num arranjo fatorial 5 x 4, perfazendo 20 tratamentos, constituídos pelas combinações cinco temperaturas (25, 30, 35, 20-30 20-35 ºC) quatro substratos (areia, vermiculita, pó...
A exposição das sementes de soja a ciclos alternados elevada e baixa umidades antes da colheita, provocado pela ocorrência chuvas freqüentes, orvalho ou às flutuações diárias umidade relativa do ar, resulta na deterioração por umidade, qual pode ser apontada como principal causa para qualidade sementes. Alguns trabalhos têm evidenciado existência genótipos contrastantes fisiológica Tais diferenças podem existir em virtude total parcial impermeabilidade tegumento à penetração água, o que...
ABSTRACT Handroanthus impetiginosus is a Brazilian native tree threatened by illegal logging that needs conservation strategies. Due to the need obtain seeds of high genetic and physiological quality, this study aimed select mother trees, aiming at installation Seed Collection Areas H. impetiginosus. Therefore, diversity quality from 63 individuals natural population in Rio Grande do Norte, Brazil, were evaluated. The molecular markers revealed studied has intrapopulation (Nei’s = 0.35;...
ABSTRACT Aspidosperma pyrifolium Mart. (Apocynaceae) is a tree species with high ecological and economic potential. Therefore, the need to select trees for producing high-quality seeds evident. In this sense, objective of study was A. matrices based on morphometric descriptors fruits physiological quality from natural population. For this, 11 were selected, their submitted biometric analysis; in addition, evaluated. The characteristics evidenced differences variations among different trees,...
ABSTRACT: Erythrina velutina Willd. (Fabaceae) is a tree species that bears social, ecological, and economic importance for northeastern Brazil, region with frequent temperature variations. The objective of this work was to evaluate the mobilization reserves during seed germination seedling establishment E. at different temperatures, how these mechanisms are affected in thermal-stress situation. seeds germinated 5, 15, 25, 35, 45 °C, physiological biochemical aspects reserve (starch, lipids,...
ABSTRACT Mimosa caesalpiniifolia Benth. (Fabaceae) is a native tree of the dry tropical forests northeastern Brazil and can be exploited for logging reforestation purposes. This study evaluated physiological quality seeds genetic diversity cultivated population M. caesalpiniifolia, against background potential commercial seed production. Nine trees were used in study. The their was by germination vigour tests, accessed using Inter Simple Sequence Repeat (ISSR). studied group presents...
ABSTRACT Pityrocarpa moniliformis (Benth.) Luckow & R. W. Jobson (Fabaceae) is a native brazilian species with high potential for economic development programs in semiarid regions, mainly related to the production of honey, animal food and firewood. Thus, objective this work was select Inter-Simple Sequence Repeat (ISSR) molecular markers genetic diversity studies, as well test efficiency approach quantifying natural P. population. For this, 28 ISSR were tested, evaluating total number...
Sementes pertencentes às espécies da família Fabaceae possuem uma elevada taxa de predação por insetos, principalmente os Bruchidae. O presente experimento teve objetivo avaliar efeitos <i>Callosobruchus maculatus</i> sobre a germinação e o vigor sementes <i>Pityrocarpa moniliformis</i>. foi constituído três tratamentos: controle (sementes intactas), escarificadas predadas. A qualidade fisiológica das avaliada meio seguintes variáveis: germinação, índice velocidade...
Abstract: The aim of this study was to adapt the vigor test methodology (strong) normal intact seedlings Amburana cearensis and evaluate efficiency in physiological classification seed lots. conducted two stages: morphological characterization analysis To do so, following tests were carried out: seedlings, germination, emergence, first count, germination speed index, tetrazolium, length strong dry mass seedlings. experimental design completely randomized. Tukey Kruskal-Wallis used compare...
O milho (Zea mays L.) é uma planta de clima tropical que exige calor e umidade para produzir satisfatoriamente proporcionar rendimentos compensadores. Diversos fatores podem comprometer a germinação das sementes emergência plântulas no campo, merecendo destaque semeadura em solos com baixas temperaturas. Em regiões predominam condições temperaturas, seria importante o uso mais tolerantes essa condição estresse. Sementes apresentam variabilidade genética objetivo deste trabalho foi...
Handroanthus impetiginosus (Bignoniaceae) é uma espécie arbórea reconhecida pelo seu potencial ecológico e econômico. A realização de estudos voltados para divergência genética dessa se torna fundamental o estabelecimento programas conservação melhoramento genético. Neste contexto, objetivou-se analisar a fenotípica entre 63 árvores população H. partir caracteres biométricos sementes obtidos por meio técnicas processamento digital imagens. Foram oito caracteres, analisados utilizando-se...
A utilização de técnicas que envolvam a análise computadorizada plântulas na avaliação da qualidade lotes sementes tem se mostrado muito eficiente. Assim, objetivou-se, neste trabalho, verificar eficiência do Sistema Análise Plântulas (SAPL) detecção diferenças vigor entre moringa, em comparação às informações fornecidas por testes tradicionalmente utilizados. Para tanto, determinou-se o teor água das e sua fisiológica pelos germinação, primeira contagem índice velocidade massa seca...
Castanea sativa woods, one of the most widespread habitats southern Europe, are included in European Community Natura 2000 network within Sites Importance (SCI). In Northern Apennines, chestnut woods mainly coppices derived from old orchards, and now abandoned. To describe relationship between present structure vegetation features, we analysed plant diversity by 143 phytosociological releves 6 SCIs. The gradient was identified multivariate analysis (clustering ordination) related to other...
ABSTRACT: Erythrina velutina Willd. (Fabaceae) is a Brazilian native tree with economic, ecological and social potential. The aim of this study was to evaluate isoenzyme activity changes in DNA integrity during germination E. at different temperatures. seeds were placed germinate 5, 15, 25, 35 45 °C, evaluating degradation the germination. Isoenzyme expression occurs differently for seed under temperatures, varied between seedlings cotyledons. esterase enzyme more sensitive express response...
The present study aimed to identify salinity-tolerant genes in three cultivars (BRS-7 Taim, BRS Querência and Atalanta) of Oryza sativa L. ssp. indica S. Kato (BRS Bojurú, IAS 12-9 Formosa Goyakuman) japonica Kato. Ten days after emergence seedlings were transferred a greenhouse placed 15L vessel with half strength Hoagland nutrient solution, which was changed every four days, under controlled temperature humidity. Plants harvested 56 transfer. DNA extraction carried out by CTAB method SOS...
Allelopathy is an ecological mechanism that influences the development of neighboring plants. The objective was to evaluate allelopathic potential Cenostigma bracteosum and Sarcomphalus joazeiro on seed germination initial growth Mimosa caesalpiniifolia seedlings. Seeds this species were placed germinate paper towel substrate, then moistened with extracts from dry leaf S. C. at 1.0; 2.5; 5.0 10.0% (w.v-1), control (0.0% - distilled water) 25 °C. variables evaluated: germination, speed index,...