Crescimento e produtividade de cultivares e linhagens de amendoim submetidas a déficit hídrico

Arruda, Isabella Mendonça; Moda-Cirino, Vânia; Buratto, Juliana Sawada; Ferreira, Josué Maldonado

doi:10.1590/1983-40632015v4529652

Cited by 18 publications

(13 citation statements)

References 11 publications

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“…According to Duarte et al, (2013) cultivars of erect habit (IAC Tatu ST) are more susceptible to increased nitrogen doses and have a greater ability to adjust to water scarcity; this allows the cultivar to present significant responses to dose increase and irrigation level when dealing to plant height. Arruda et al (2015) studying the cultivar IAC Tatu, under conditions of water deficit, observed little tolerance to drought and high productive potential, besides verifying that plant height is a variable highly influenced by water deficit (Figure 02). …”

Section: Resultsmentioning

confidence: 86%

“…Proving that the amount of water available to the plant and nitrogen fertilization influenced all the variables evaluated. Arruda et al (2015), evaluating peanut cultivars under water stress observed that plant height and number of pods are highly responsive to water supply. *Significant at 5% probability, **Significant at 1% probability of error.…”

Section: Resultsmentioning

confidence: 99%

“…It was observed in several studies (Duarte et al, 2013, Arruda et al, 2015 where the irrigation was the main factor that interfered in the reproductive phase of the crop, reducing the number of pods per plant, interfering in the formation of pods, elongation and penetration of the gynophore in the soil.…”

Section: Peanut Cultivars Submitted To Irrigation Levels and Nitrogenmentioning

confidence: 99%

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Peanut Cultivars Submitted to Irrigation Levels and Nitrogen Adubation in Tropical Climate

et al. 2017

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ABSTRACT:The objective of this study was to define the best irrigation level in a sprinkler system, submitted to nitrogen doses in covering in the municipality of Tangará da Serra -MT, for two cultivars of peanut (Arachis hypogaea L.). The experiment was carried out in the experimental field of the State University of Mato Grosso (UNEMAT), located geographically in latitude 14º39'S; Longitude 57º25'W, at 440 meters of altitude. The climate is classified as tropical humid megathermal (Aw), with annual average rainfall of 1,830 mm and average temperature of the air 24.4ºC. The soil is classified as Dystroferric Red Latosol. The experimental design was in randomized blocks where 4 levels (30, 70, 110 and 150% of the reference evapotranspiration, ET0) were determined. In each level, 0, 30, 60, 90 and 120 Kg ha -1 of nitrogen were applied in two peanut cultivars IAC Tatu ST and IAC Runner 886. Each plot had 24 lines per 12 m length, 4 lines for each dose of N in each level and cultivar with 0.45 m spacing between lines. The irrigation level that provided the highest productivity in the development cycle for both peanut cultivars was 110% of ET0. While the levels of 30 and 70% of the ET0 allowed greater growth in height, but smaller productivities, the 150% ET0 level showed higher yields in the husk, and lower grain yield due to the high germination rate of the grain yet in the plant. For Tatu cultivar, doses of 60 to 90 kg ha -1 of N increase productivity, whereas for Runner cultivar nitrogen fertilization did not affect productivity.

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Section: Resultsmentioning

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Section: Peanut Cultivars Submitted To Irrigation Levels and Nitrogenmentioning

confidence: 99%

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Peanut Cultivars Submitted to Irrigation Levels and Nitrogen Adubation in Tropical Climate

et al. 2017

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“…Drought has a negative effect on physiological processes and hence reduces peanut yield [69]. However, when it is imposed under experimental conditions, it provides valuable clues which enable scientists to derive the function of AhWRKYs by comparing the phylogenetic and homologous relationships between AhWRKYs and other crop species.…”

Section: Plos Onementioning

confidence: 99%

Identification and expression analysis of WRKY gene family under drought stress in peanut (Arachis hypogaea L.)

Zhao

et al. 2020

PLoS ONE

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WRKY transcription factors play crucial roles in regulation mechanism leading to the adaption of plants to the complex environment. In this study, AhWRKY family was comprehensively analyzed using bioinformatic approaches in combination with transcriptome sequencing data of the drought-tolerant peanut variety 'L422'. A total of 158 AhWRKY genes were identified and named according to their distribution on the chromosomes. Based on the structural features and phylogenetic analysis of AhWRKY proteins, the AhWRKY family members were classified into three (3) groups, of which group II included five (5) subgroups. Results of structure and conserved motifs analysis for the AhWRKY genes confirmed the accuracy of the clustering analysis. In addition, 12 tandem and 136 segmental duplication genes were identified. The results indicated that segmental duplication events were the main driving force in the evolution of AhWRKY family. Collinearity analysis found that 32 gene pairs existed between Arachis hypogaea and two diploid wild ancestors (Arachis duranensis and Arachis ipaensis), which provided valuable clues for phylogenetic characteristics of AhWRKY family. Furthermore, 19 stress-related cis-acting elements were found in the promoter regions. During the study of gene expression level of AhWRKY family members in response to drought stress, 73 differentially expressed AhWRKY genes were obtained to have been influenced by drought stress. These results provide fundamental insights for further study of WRKY genes in peanut drought resistance.

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“…O déficit hídrico durante o desenvolvimento do amendoim prejudica vários processos fisiológicos da planta e reduz sua produtividade (Arruda et al, 2015). Os dados obtidos no trabalho desenvolvido (Tabela 5) não corroboram com que foi verificado pelos autores, o que pode ser comprovado por meio das superfícies H1, H2 e 20N.…”

Section: Anounclassified

Momento de Irrigar a Cultura de Amendoim Utilizando a Termometria a Infravermelho

Turco

Vieira

2021

Rev. bras. meteorol.

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Resumo O uso de índices de estresse hídrico nas fases de desenvolvimento da cultura pode atuar como uma ferramenta essencial no manejo da irrigação. Objetivou-se com este trabalho determinar o momento ideal de irrigar a cultura do amendoim, por meio de índices de estresse hídrico utilizando-se a termometria a infravermelho. A pesquisa foi desenvolvida na área experimental do Departamento de Engenharia Rural da FCAV/UNESP, Jaboticabal-SP, situada a 22°15’22” S, 48°18’58” W, e altitude de 575 m, em uma “Bacia Hidrográfica Experimental”, utilizando superfícies com diferentes declividades (0%, 20% e 40%) e exposições solares (Norte, Sul, Leste e Oeste), sob déficit hídrico induzido. O solo da área experimental é o LE1, Vermelho-Escuro, eutrófico, A moderado, caulinítico, hipoférrico, textura argilosa, relevo suave ondulado (Eutrustox). O índice de estresse hídrico foi determinado por meio da medição da temperatura da cobertura vegetal e do ar ambiente. A rega foi realizada utilizando-se sistema de irrigação por gotejamento. Os resultados indicam que o momento de irrigar difere para cada fase de desenvolvimento do amendoim, em uma faixa entre 1,3 °C até 3,3 °C. A superfície mantida na capacidade de campo obteve menor índice de estresse hídrico (-1,4 °C).

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Crescimento e produtividade de cultivares e linhagens de amendoim submetidas a déficit hídrico

Cited by 18 publications

References 11 publications

Peanut Cultivars Submitted to Irrigation Levels and Nitrogen Adubation in Tropical Climate

Peanut Cultivars Submitted to Irrigation Levels and Nitrogen Adubation in Tropical Climate

Identification and expression analysis of WRKY gene family under drought stress in peanut (Arachis hypogaea L.)

Momento de Irrigar a Cultura de Amendoim Utilizando a Termometria a Infravermelho

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