Drought Tolerance
Mostrando 13-24 de 157 artigos, teses e dissertações.
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13. Maize: Key agricultural crop in food security and sovereignty in a future with water scarcity
RESUMO O objetivo nesta revisão foi discutir a importância da cultura do milho na atualidade e o papel crucial que pode desempenhar no futuro para a produção de alimentos em cenários de deficiência hídrica, bem como a importância de conservar suas cultivares crioulas, que detêm uma parcela considerável dessa reserva de variabilidade genética. As p
Rev. bras. eng. agríc. ambient.. Publicado em: 12/08/2019
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14. Improved drought tolerance in wheat is required to unlock the production potential of the Brazilian Cerrado
Abstract Improving rainfed wheat cultivation in central Brazil, where the Cerrado biome (Brazilian savanna) is predominant, remains a bottleneck for future increases in domestic wheat production. In the Cerrado, the limited water availability during the wheat-growing season is an obstacle to increase wheat yield. To address this issue, the physiological and
Crop Breed. Appl. Biotechnol.. Publicado em: 01/08/2019
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15. Drought tolerance evaluated in common bean genotypes
RESUMO Frente ao impacto das questões climáticas e sua influência direta sobre a produção agrícola, o objetivo desse trabalho foi identificar genótipos superiores de feijoeiro comum submetidos ao déficit hídrico. Dessa forma, trinta genótipos de feijoeiro comum foram avaliados em condições controladas de casa de vegetação, sob delineamento expe
Ciênc. agrotec.. Publicado em: 03/06/2019
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16. A aplicação exógena foliar de ácido abscísico desencadeia mecanismos de tolerância à deficiência hídrica em seringueira
Resumo O ácido abscísico (ABA) é conhecido como o hormônio mais influente em desencadear mecanismos de tolerância a estresse em plantas, inclusive à deficiência hídrica. No entanto, o efeito da aplicação exógena como indutora de tolerância pré-estresse é pouco estudado em plantas de interesse agronômico. O objetivo deste trabalho foi avaliar o
Ciênc. Florest.. Publicado em: 30/05/2019
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17. Evaluation of common bean genotypes for drought tolerance
ABSTRACT The aim of this study was to evaluate twelve genotypes of common bean for intermittent drought stress and for root growth angle. The water deficit experiments were conducted in 2015 and 2016in a randomized block experimental design with split plots and three replications. Two treatments were applied: an irrigated treatment and a water deficit treatm
Bragantia. Publicado em: 17/01/2019
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18. Phytoene Synthase Gene ( PSY ) from Sweet Potato ( Ipomoea batatas Lam . ) Enhances Tolerance to Abiotic Stress
ABSTRACT Phytoene synthase (PSY) is the rate-limiting enzyme for carotenoid biosynthesis. To date, several studies focused on PSY genes in the context of abiotic stress responses. In this study, two phytoene synthase encoding genes, IbPSY1 and IbPSY2, were identified from a published transcriptome and bioinformatic analysis showed that they shared conserved
Braz. arch. biol. technol.. Publicado em: 14/11/2018
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19. Transcriptome sequencing and expression profiling of genes involved in the response to abiotic stress in Medicago ruthenica
Abstract Medicago ruthenica is a perennial forage legume with the remarkable ability to survive under unfavorable environmental conditions. It has been identified as an excellent species of Medicago that can adapt to various environmental stresses including low temperature, drought, and salinity. To investigate its potential as a genetic resource, we perform
Genet. Mol. Biol.. Publicado em: 28/06/2018
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20. ABA regulation of post-germination desiccation tolerance in wheat cultivars contrasting in drought tolerance
ABSTRACT Post-germination desiccation tolerance (DT) was studied in two wheat cultivars. Effect of pretreatment of abscisic acid (ABA)/ osmotic/ salt/ heat stress was also studied. One day (d)-old seedlings of wheat cultivars PBW 644 (drought tolerant) and PBW 343 (drought susceptible) were exposed to ABA/stress treatment for next 1 d, desiccated for 4 d and
An. Acad. Bras. Ciênc.. Publicado em: 2018-04
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21. Physiological response and productivity of safflower lines under water deficit and rehydration
ABSTRACT Water deficit is one of the major stresses affecting plant growth and productivity worldwide. Plants induce various morphological, physiological, biochemical and molecular changes to adapt to the changing environment. Safflower (Carthamus tinctorius L.), a potential oil producer, is highly adaptable to various environmental conditions, such as lack
An. Acad. Bras. Ciênc.. Publicado em: 07/12/2017
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22. Photosynthetic capacity and water use efficiency in Ricinus communis (L.) under drought stress in semi-humid and semi-arid areas
ABSTRACT Castor bean is one of the crops with potential to provide raw material for production of oils for biodiesel. This species possess adaptive mechanisms for maintaining the water status when subjected to drought stress. A better understanding these mechanisms under field conditions can unravel the survival strategies used by this species. This study ai
An. Acad. Bras. Ciênc.. Publicado em: 07/12/2017
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23. Mapping QTLs for drought tolerance in a SEA 5 x AND 277 common bean cross with SSRs and SNP markers
Abstract The common bean is characterized by high sensitivity to drought and low productivity. Breeding for drought resistance in this species involves genes of different genetic groups. In this work, we used a SEA 5 x AND 277 cross to map quantitative trait loci associated with drought tolerance in order to assess the factors that determine the magnitude of
Genet. Mol. Biol.. Publicado em: 23/10/2017
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24. Molecular Characterization of a MYB Protein from Oryza sativa for its Role in Abiotic Stress Tolerance
ABSTRACT The MYB family represents one of the most abundant classes of transcriptional regulators that perform pivotal role under different developmental processes and abiotic stresses. In present study, a MYB gene from Oryza sativa was selected for functional characterization. Bioinformatics analysis revealed that OsMYB1 cDNA encodes R2-R3 type DNA binding
Braz. arch. biol. technol.. Publicado em: 22/06/2017