Consulta: subjectFacets:"Drought resistance"
Registros recuperados: 14
Data/hora: 01/06/2024 04:14:52

Eficiencia de la selección y discriminación isotópica de carbono en trigo, bajo condiciones limitantes y no limitantes de humedad
Provedor de dados: 32
Autores: Martínez Rueda, Carlos Gustavo.
La sequía es uno de los principales factores que reducen la producción de trigo bajo  condiciones de temporal. Sin embargo, la baja heredabilidad en el rendimiento y la falta de  estrategias y criterios de selección más efectivos dificultan la obtención de variedades con  mayor tolerancia a este tipo de estrés. Los principales objetivos de este trabajo fueron: i)  identificar estrategias y ambientes óptimos de selección en el mejoramiento genético de trigo  para condiciones de temporal y ii) examinar la variación en discriminación isotópica de  carbono y su eficiencia con criterio de selección indirecta para incrementar el rendimiento de  grano en trigo. De un compuesto irradiado (60 Co) de la variedad Salamanca S75 se derivó un  grupo de 25 líneas...
Tipo: Tesis
Palavras-chave: Triticum aestivum L.; Resistencia a sequía; Ambiente de selección; Selección indirecta; Drought resistance; Triticum aestivum L.; Selection environment; Indirect selection.
Ano: 2008
URL: http://hdl.handle.net/10521/1199

Expression analysis in response to drought stress in soybean: shedding light on the regulation of metabolic pathway genes
Provedor de dados: 74
Autores: Guimarães-Dias,Fábia; Neves-Borges,Anna Cristina; Viana,Antonio Americo Barbosa; Mesquita,Rosilene Oliveira; Romano,Eduardo; Grossi-de-Sá,Maria de Fátima; Nepomuceno,Alexandre Lima; Loureiro,Marcelo Ehlers; Alves-Ferreira,Márcio.
Metabolomics analysis of wild type Arabidopsis thaliana plants, under control and drought stress conditions revealed several metabolic pathways that are induced under water deficit. The metabolic response to drought stress is also associated with ABA dependent and independent pathways, allowing a better understanding of the molecular mechanisms in this model plant. Through combining an in silico approach and gene expression analysis by quantitative real-time PCR, the present work aims at identifying genes of soybean metabolic pathways potentially associated with water deficit. Digital expression patterns of Arabidopsis genes, which were selected based on the basis of literature reports, were evaluated under drought stress condition by Genevestigator. Genes...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Drought resistance; QPCR; Metabolic pathway; Bioinformatics.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000200004

Identification of SNPs in RNA-seq data of two cultivars of Glycine max (soybean) differing in drought resistance
Provedor de dados: 74
Autores: Vidal,Ramon Oliveira; Nascimento,Leandro Costa do; Maurício Costa Mondego,Jorge; Amarante Guimarães Pereira,Gonçalo; Falsarella Carazzolle,Marcelo.
The legume Glycine max (soybean) plays an important economic role in the international commodities market, with a world production of almost 260 million tons for the 2009/2010 harvest. The increase in drought events in the last decade has caused production losses in recent harvests. This fact compels us to understand the drought tolerance mechanisms in soybean, taking into account its variability among commercial and developing cultivars. In order to identify single nucleotide polymorphisms (SNPs) in genes up-regulated during drought stress, we evaluated suppression subtractive libraries (SSH) from two contrasting cultivars upon water deprivation: sensitive (BR 16) and tolerant (Embrapa 48). A total of 2,222 soybean genes were up-regulated in both...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Single nucleotide polymorphisms; Deep sequencing; Drought resistance.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000200014

Eucalyptus ESTs involved in the production of 9-cis epoxycarotenoid dioxygenase, a regulatory enzyme of abscisic acid production
Provedor de dados: 74
Autores: Guerrini,Iraê A.; Trigueiro,Rodrigo M.; Leite,Regina M.; Wilcken,Carlos F.; Velini,Edivaldo D.; Mori,Edson S.; Furtado,Edson L.; Marino,Celso L.; Maia,Ivan G.
Abscisic acid (ABA) regulates stress responses in plants, and genomic tools can help us to understand the mechanisms involved in that process. FAPESP, a Brazilian research foundation, in association with four private forestry companies, has established the FORESTs database (&lt;A HREF="https://forests.esalq.usp.br"&gt;https://forests.esalq.usp.br&lt;/A&gt;). A search was carried out in the Eucalyptus expressed sequence tag database to find ESTs involved with 9-cis epoxycarotenoid dioxygenase (NCED), the regulatory enzyme for ABA biosynthesis, using the basic local BLAST alignment tool. We found four clusters (EGEZLV2206B11.g, EGJMWD2252H08.g, EGBFRT3107F10.g, and EGEQFB1200H10.g), which represent similar sequences of the gene that produces NCED. Data...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Eucalyptus EST; Abscisic acid; Water deficit; Drought resistance; NCED.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000400020

Genome-wide association study of drought-related resistance traits in Aegilops tauschii
Provedor de dados: 74
Autores: Qin,Peng; Lin,Yu; Hu,Yaodong; Liu,Kun; Mao,Shuangshuang; Li,Zhanyi; Wang,Jirui; Liu,Yaxi; Wei,Yuming; Zheng,Youliang.
Abstract The D-genome progenitor of wheat (Triticum aestivum), Aegilops tauschii, possesses numerous genes for resistance to abiotic stresses, including drought. Therefore, information on the genetic architecture of A. tauschii can aid the development of drought-resistant wheat varieties. Here, we evaluated 13 traits in 373 A. tauschii accessions grown under normal and polyethylene glycol-simulated drought stress conditions and performed a genome-wide association study using 7,185 single nucleotide polymorphism (SNP) markers. We identified 208 and 28 SNPs associated with all traits using the general linear model and mixed linear model, respectively, while both models detected 25 significant SNPs with genome-wide distribution. Public database searches...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aegilops tauschii; Drought resistance; Genome-wide association study; Single nucleotide polymorphism; Wheat.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000300398

dentification of high-yielding large-seeded kabuli chickpeas with drought avoidance root traits
Provedor de dados: 30
Autores: Kashiwagi,J.
Palavras-chave: Chickpeas; Genotypes; Weather hazards; Germplasm; Drought resistance; Genetic soil types; Breeds (animals); Replication; Tolerance; Grain.
Ano: 2007
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3285

Summary Proceedings of the First ICRISAT Regional Groundnut Meeting for West Africa
Provedor de dados: 30
Palavras-chave: Groundnuts; Mycotoxins; Breeds (animals); Drought resistance; Weather hazards; Genotypes; Sole cropping; Fungi; Early maturation.
Ano: 1990
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4078

Variation of SPAD Chlorophyll Meter Readings (SCMR) in the mini-core germplasm collection of chickpea
Provedor de dados: 30
Autores: Kashiwagi, J.
Palavras-chave: Chlorophylls; Chickpeas; Genotypes; Transpiration (animals); Germplasm; Germplasm collections; Harvest index; Leaf area; Drought resistance; Plant nutrition.
Ano: 2006
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3183

ICC 4958 A Drought Resistant Chickpea
Provedor de dados: 30
Palavras-chave: Drought resistance; Genotypes; Weather hazards; Chickpeas; Segregation; Genetic soil types; Germplasm; Soil water content; Grain legumes; Tolerance.
Ano: 1992
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3830

Brazilian maize genotypes sensitivity to water deficit estimated through a simple crop yield model
Provedor de dados: 86
Autores: Andrioli,Kleber Gustavo; Sentelhas,Paulo Cesar.
The objective of this work was to determine the sensitivity of maize (Zea mays) genotypes to water deficit, using a simple agrometeorological crop yield model. Crop actual yield and agronomic data of 26 genotypes were obtained from the Maize National Assays carried out in ten locations, in four Brazilian states, from 1998 to 2006. Weather information for each experimental location and period were obtained from the closest weather station. Water deficit sensitivity index (Ky) was determined using the crop yield depletion model. Genotypes can be divided into two groups according to their resistance to water deficit. Normal resistance genotypes had Ky ranging from 0.4 to 0.5 in vegetative period, 1.4 to 1.5 in flowering, 0.3 to 0.6 in fruiting, and 0.1 to 0.3...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Agrometeorology; Drought resistance; Water balance.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000700001

Are Homeowners Willing to Pay for "Origin-Certified" Plants in Water-Conserving Residential Landscaping?
Provedor de dados: 31
Autores: Curtis,   Kynda R.; Cowee,   Margaret W.
This study investigates the value of local origin-labeling for a nonfood product by evaluating Nevada homeowner purchase propensity for “NevadaGrown” native plants for water-conserving residential landscaping. Homeowner survey results illustrate that homeowners may be willing to pay as much as a 14% premium for origin-certified native plants. WTP estimates are higher when uncertain responses are incorporated into the bidding structure. Preferences for local production and drought resistance in plants are the primary drivers of purchasing decisions in the absence of uncertain responses, while income levels and preferences for natural plant appearance additionally affect purchasing decisions when uncertainty is incorporated.
Tipo: Journal Article
Palavras-chave: Drought resistance; Native plants; Origin labeling; Uncertainty; Willingness to pay; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/61066

Evaluation of morphological characteristics in Venezuelan maize (Zea mays L.) genotypes under drought stress
Provedor de dados: 63
Autores: Camacho,R.G.; Caraballo,D.F.
A greenhouse experiment was carried out to evaluate the responses among 10 maize (Zea mays L.) genotypes under drought stress. Seeds were planted in washed sand in plastic pots. The research was established in a completely random design with ten treatments and three replicate pots. The plants were harvested four weeks after sowning, and leaf area per plant (LA), root volume (RV), longest root length (LRL), plant height (PH), fresh (RFW) and dry weight (ROW) of roots, shoot dry weight (SOW), RDW/SDW ratio, and total dry matter production (TDM) were determined. Significant varietal differences for all characters were found, except for LRL. The data obtained allowed to identify Cargill-163 as a poor genotype at low water supply. Danac-3006, FM-6,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Leaf area; Root volume; Root length; Plant height; Root weight; Shoot weight; Total dry matter; Drought resistance.
Ano: 1994
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161994000300012

Sorghum breeding
Provedor de dados: 106
Autores: House, L.R.
Palavras-chave: Sorghum; Plant breeding; Pest resistance; Drought resistance; Grain quality; ข้าวฟ่าง; ความคงตัวของพันธุ์; พันธุ์ลูกผสม; พันธุ์ต้านทานแมลงศัตรูพืช; พันธุ์ทนแล้ง; พันธุ์ต้านทานโรค; การปรับปรุงพันธุ์.
Ano: 1979
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3957

Corn improvement for drought resistance program
Provedor de dados: 106
Autores: Kitisri Sukhapinda; Somsri Thaiwesna.
2 tables
Palavras-chave: Corn; Maize; Plant breeding; Drought resistance; Variety trials; Yields; ข้าวโพด; การปรับปรุงพันธุ์; พันธุ์ทนแล้ง.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4086