scholarly journals Transcriptomic and metabolomic profiling of melatonin treated soybean (Glycine max L.) under drought stress during grain filling period through regulation of secondary metabolite biosynthesis pathways

PLoS ONE ◽  
2020 ◽  
Vol 15 (10) ◽  
pp. e0239701
Author(s):  
Liang Cao ◽  
Xijun Jin ◽  
Yuxian Zhang ◽  
Mingcong Zhang ◽  
Yanhong Wang
Keyword(s):  
Glycine Max ◽  
Drought Stress ◽  
Secondary Metabolite ◽  
Grain Filling ◽  
Metabolomic Profiling ◽  
Secondary Metabolite Biosynthesis ◽  
Glycine Max L ◽  
Grain Filling Period

scholarly journals CONSUMO HÍDRICO DA SOJA NO NORDESTE PARAENSE

Irriga ◽  
2018 ◽  
Vol 1 (01) ◽  
pp. 218
Author(s):  
Paulo Jorge Oliveira Ponte de Souza ◽  
Samuel Ortega-Farias ◽  
Edson Jose Paulino da Rocha ◽  
Adriano Marlisom Leao de Sousa ◽  
Everaldo Barreiros de Souza
Keyword(s):  
Glycine Max ◽  
Water Consumption ◽  
Climatic Factors ◽  
Bowen Ratio ◽  
Grain Filling ◽  
Mean Value ◽  
Stomatal Control ◽  
Available Energy ◽  
Glycine Max L ◽  
Grain Filling Period

CONSUMO HÍDRICO DA SOJA NO NORDESTE PARAENSE*  PAULO JORGE DE OLIVEIRA PONTE DE SOUZA1; SAMUEL ORTEGA-FARIAS2; EDSON JOSE PAULINO DA ROCHA3; ADRIANO MARLISOM LEAO DE SOUSA4 E EVERALDO BARREIROS DE SOUZA5 1Meteorologista, Prof. Dr. Agrometeorologia, Instituto Socioambiental e dos Recursos Hídricos, Universidade Federal Rural da Amazônia, UFRA/ISARH, [email protected] agrônomo, Prof. PHD. Agroclimatologia, Centro de Investigacion y transferência em Riego y agroclimatologia, Universida de Talca, UTALCA/CITRA, [email protected], Prof. Dr. Meteorologia, Instituto de Geociências, Universidade Federal do Pará, UFPA/IG, [email protected], Prof. Dr. Hidrologia, Instituto Socioambiental e dos Recursos Hídricos, Universidade Federal Rural da Amazônia, UFRA/ISARH, [email protected], Prof. Dr. Meteorologia, Instituto de Geociências, Universidade Federal do Pará, UFPA/IG, [email protected]*Extraído da tese de doutorado do primeiro autor  1 RESUMO Diversas pesquisas realizadas no Brasil têm mostrado que o rendimento das culturas é influenciado por fatores climáticos, dentre eles o estresse hídrico. O consumo hídrico da soja varia com o desenvolvimento vegetal e em função das condições ambientais, com impactos relevantes em seu rendimento quando esta demanda não é atendida. Sendo assim, o objetivo deste estudo foi avaliar o consumo hídrico da soja (Glycine Max (L.) Merryl), variedade Tracajá, durante o ciclo cultural de 2007 em uma área experimental dentro de uma fazenda de produção comercial de soja no nordeste Paraense. A evapotranspiração real da cultura foi estimada pelo balanço de energia através da técnica da razão de Bowen. Os resultados permitem inferir que: i) o consumo hídrico da soja acompanhou a tendência do aumento no índice de área foliar (IAF), com máxima evapotranspiração durante o período de enchimento de grãos, cujo valor médio foi de 4,1±0,4 mm.dia-1; ii) baixos valores do fator de desacoplamento durante a fase inicial da cultura indicaram uma importante contribuição da evaporação do solo e maior controle estomático do processo; iii) com o fechamento do dossel houve uma diminuição do controle estomático indicando um aumento da contribuição da transpiração e o desacoplamento do dossel com a atmosfera, sendo a evapotranspiração controlada diretamente pela energia disponível; iv) reduções no conteúdo de água do solo durante a fase reprodutiva sugeriram um importante controle estomático na evapotranspiração da soja; v) o consumo total de água pela soja desde a fase V1 até a colheita foi de 335 mm. Palavras-chave: Fronteira agrícola, Razão de Bowen, Evapotranspiração.  SOUZA, P.J.O.P.; ORTEGA-FARIAS, S.; ROCHA, E.J.P.; SOUSA, A.M.L.; SOUZA, E.B.SOYBEAN WATER REQUIREMENT IN NORTHEAST OF PARÁ STATE   2 ABSTRACT Several studies conducted in Brazil have shown that crop yield is affected by different climatic factors, including water stress. Water consumption of soybean varies with plant development and environmental conditions, with significant impacts on its yield when this demand is not met. Water consumption of soybean crop (Glycine Max (L.) Merryl) grown during the 2007 crop cycle in a soybean production areas in the Amazon was investigated. The soybean water consumption followed the trend of increase in LAI, with maximum evapotranspiration during grain filling period, whose mean value was 4.1±0.4 mm.day-1. Low values of the decoupling factor during the initial phase of the crop indicated a considerable contribution of soil evaporation and a higher stomatal control of the process. After the canopy closure there was a decrease in stomatal control indicating an increment in the transpiration contribution besides a canopy decoupling with the atmosphere, which indicated a direct control of evapotranspiration by the available energy. Slight reductions in soil water content during the reproductive phase suggested a certain importance of stomatal control in soybean evapotranspiration. The total water consumption of soybean from the V1 stage until harvest was 335 mm. Keywords: Agricultural Border in the Amazon, Bowen Ratio, Evapotranspiration. 

scholarly journals The Response of Soybean (glycine max (l.) Meer.) Varieties from the Tropical Region to Five Watering Regimes under a Controlled Environment

2018 ◽  
Vol 1 (2) ◽  
Keyword(s):  
Glycine Max ◽  
Drought Stress ◽  
Stomatal Conductance ◽  
Water Supply ◽  
Dry Season ◽  
Plant Response ◽  
Tropical Region ◽  
Transpiration Efficiency ◽  
Wide Range ◽  
Glycine Max L

In some rice dominated tropical regions, such as in Indonesia, soybeans are an increasingly important dry season crop which are often exposed to periods of drought stress. The morphological and physiological responses, which could lead to some tolerance to water stress, may vary between varieties. By better understanding the plant response to drought stress and finding if these responses vary between varieties better dry season production could be achieved. An experiment was conducted to compare the response of four varieties of soybean (glycine max (l.) Meer.) to five watering regimes, with the objective of determining the response of common soybean varieies across a wide range of water supply. Plant response to water supply was measured using gas exchange measurement with the rate of photo synthesis decreasing progressively from well watered to dry conditions across the four varieties. A correlation of stomatal conductance and transpiration rate has a close relationship with photosynthetic rate, where stomatal conductance of Burangrang variety has higher value than other varieties. Varieties Burangrang and Argomulyo stomatal conductances are higher value than those of Anjasmoro and Grobogan varieties. In a deficit of water condition, the Argomulyo varieties have a higher value of transpiration efficiency and significantly different than the other three varieties. The transpiration efficiency significantly declined for treatments watered once every two or three weeks. The transpiration efficiency values of Agromulyo and Burangrang varieties were significantly higher than another varieties.

scholarly journals Recurrent Drought Conditions Enhance the Induction of Drought Stress Memory Genes in Glycine max L.

2020 ◽  
Vol 11 ◽  
Author(s):  
Yeon-Ki Kim ◽  
Songhwa Chae ◽  
Nam-Iee Oh ◽  
Nguyen Hoai Nguyen ◽  
Jong-Joo Cheong
Keyword(s):  
Glycine Max ◽  
Drought Stress ◽  
Stress Memory ◽  
Drought Conditions ◽  
Glycine Max L

scholarly journals Effects of Drought Stress on Some Agronomic and Morpho-Physiological Traits in Durum Wheat Genotypes

2020 ◽  
Vol 12 (14) ◽  
pp. 5610
Author(s):  
Alireza Pour-Aboughadareh ◽  
Reza Mohammadi ◽  
Alireza Etminan ◽  
Lia Shooshtari ◽  
Neda Maleki-Tabrizi ◽  
...  
Keyword(s):  
Drought Stress ◽  
Grain Yield ◽  
Durum Wheat ◽  
Harvest Index ◽  
Plant Biomass ◽  
Geometric Mean ◽  
Grain Filling ◽  
Tolerance Index ◽  
Wheat Genotypes ◽  
Grain Filling Period

Durum wheat performance in the Mediterranean climate is limited when water scarcity occurs before and during anthesis. The present research was performed to determine the effect of drought stress on several physiological and agro-morphological traits in 17 durum wheat genotypes under two conditions (control and drought) over two years. The results of analysis of variance indicated that the various durum wheat genotypes responded differently to drought stress. Drought stress significantly reduced the grain filling period, plant height, peduncle length, number of spikes per plot, number of grains per spike, thousand grains weight, grain yield, biomass, and harvest index in all genotypes compared to the control condition. The heatmap-based correlation analysis indicated that grain yield was positively and significantly associated with phenological characters (days to heading, days to physiological maturity, and grain filling period), as well as number of spikes per plant, biomass, and harvest index under drought conditions. The yield-based drought and susceptible indices revealed that stress tolerance index (STI), geometric mean productivity (GMP), mean productivity (MP), and harmonic mean (HM) were positively and significantly correlated with grain yields in both conditions. Based on the average of the sum of ranks across all indices and a three-dimensional plot, two genotypes (G9 and G12) along with the control variety (G1) were identified as the most tolerant genotypes. Among the investigated genotypes, the new breeding genotype G12 showed a high drought tolerance and yield performance under both conditions. Hence, this genotype can be a candidate for further multi-years and locations test as recommended for cultivation under rainfed conditions in arid and semi-arid regions.

scholarly journals Prolongation of soybean (Glycine max (L.) Merr.) nodule lifespan under drought stress

2007 ◽  
Vol 73 (2) ◽  
pp. 335
Author(s):  
U. Schlüter ◽  
A. Mashamba ◽  
K.J. Kunert
Keyword(s):  
Glycine Max ◽  
Drought Stress ◽  
Glycine Max L

The Role of Fertilizer Management in the Development and Expression of Crop Drought Stress in Cereals under Mediterranean Environmental Conditions

1985 ◽  
Vol 21 (3) ◽  
pp. 209-222 ◽  
Author(s):  
J. D. H. Keatinge ◽  
P. J. H. Neate ◽  
K. D. Shepherd
Keyword(s):  
Drought Stress ◽  
Environmental Conditions ◽  
Crop Yields ◽  
Grain Filling ◽  
Fertilizer Management ◽  
Fertilizer N ◽  
Kernel Weights ◽  
Grain Filling Period ◽  
Heavy Nitrogen

SUMMARYThe development and influence of crop drought stress was examined in winter-planted small-grain cereals under Mediterranean environmental conditions. In two average or wetter than average years crop drought stress in the grain-filling period was greatly exacerbated by the addition of fertilizer (N and P) and this usually resulted in significantly lower kernel weights. Yet this reduction was not so substantial as to seriously affect crop yields. Total grain yields were largest in treatments receiving fertilizer, due to greater spike numbers and numbers of kernels per spike. But heavy nitrogen applications may promote the risk of a large proportion of small or shrivelled grains in a dry year.

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