Qualidade De Óleo De Cultivares De Canola Em Resposta Ao Estresse Hídrico E Aplicação De Polímero Hidroabsorvente

Moghadam, Hamid Reza Tohidi; Zahedi, Hossein; Behjou, Farshad Keivan

doi:10.5216/pat.v41i4.13366

Cited by 22 publications

(13 citation statements)

References 26 publications

(28 reference statements)

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“…Due to the scarcity of water resources, drought is recognized as one of the single most critical threats to world food security (Abolhasani and Saeidi, 2004;Lambers et al, 2008;Farooq et al, 2009Farooq et al, , 2012Moghadam et al, 2011;Monjezi et al, 2013;Pourgholam et al, 2013). It harms plant growth and development and reduces the growth rates of crop and biomass accumulation.…”

Section: Iron and Drought Stressmentioning

confidence: 99%

“…Generally, in crop plants, drought severely affects cell division and expansion, elongation of root, leaf size, proliferation of root, and inhibition of shoot growth (Sharp and Davies, 1989;Spollen et al, 1993;Sharp et al, 2004;Yamaguchi et al, 2010). Furthermore, it hampers all kinds of physiological and biochemical traits such as mineral elements, carbohydrates, ions, hormones, lipids, and nucleic acids (HongBo et al, 2005;Yasar et al, 2006;Moghadam et al, 2011;Pourgholam et al, 2013). The transportation of nutrients from root to shoot are severely affected by drought as the rate of transpiration is reduced.…”

Section: Iron and Drought Stressmentioning

confidence: 99%

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Acquisition and Homeostasis of Iron in Higher Plants and Their Probable Role in Abiotic Stress Tolerance

Tripathi

Singh

Gaur

et al. 2018

Front. Environ. Sci.

141

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Iron (Fe) is a micronutrient that plays an important role in agriculture worldwide because plants require a small amount of iron for its growth and development. All major functions in a plant's life from chlorophyll biosynthesis to energy transfer are performed by Fe (Brumbarova et al., 2008;Gill and Tuteja, 2011). Iron also acts as a major constituent of many plant proteins and enzymes. The acquisition of Fe in plants occurs through two strategies, i.e., strategy I and strategy II (Marschner and Römheld, 1994). Under various stress conditions, Nramp and the YSL gene families help in translocation of Fe, which further acts as a mineral regulatory element and defends plants against stresses. Iron plays an irreplaceable role in alleviating stress imposed by salinity, drought, and heavy metal stress. This is because it activates plant enzymatic antioxidants like catalase (CAT), peroxidase, and an isoform of superoxide dismutase (SOD) that act as a scavenger of reactive oxygen species (ROS) (Hellin et al., 1995). In addition to this, their deficiency as well as their excess amount can disturb the homeostasis of a plant's cell and result in declining of photosynthetic rate, respiration, and increased accumulation of Na + and Ca − ions which culminate in an excessive formation of ROS. The short-range order hydrated Fe oxides and organic functional groups show affinities for metal ions. Iron plaque biofilm matrices could sequester a large amount of metals at the soil-root interface. Hence, it has attracted the attention of plant physiologists and agricultural scientists who are discovering more exciting and hidden applications of Fe and its potential in the development of bio-factories. This review looks into the recent progress made in putting forward the role of Fe in plant growth, development, and acclimation under major abiotic stresses, i.e., salinity, drought, and heavy metals.

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Section: Iron and Drought Stressmentioning

confidence: 99%

Section: Iron and Drought Stressmentioning

confidence: 99%

Acquisition and Homeostasis of Iron in Higher Plants and Their Probable Role in Abiotic Stress Tolerance

Tripathi

Singh

Gaur

et al. 2018

Front. Environ. Sci.

141

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“…Neste cenário, surge como alternativa o uso de hidrorretentores que possuem grande capacidade de retenção e armazenamento dé agua, melhorando a eficiência de absorção de nutrientes [12]. Em pesquisa realizada com hidrorretentores constatou-se o aumento da capacidade de armazenamento deágua no solo, alongando o período vegetativo das plantas, favorecendoà qualidade doóleo [14]. Em trigo, o uso do hidrogel ocasionou o aumento da eficiência de uso do nitrogênio [16].…”

Section: Resultsunclassified

Regressão por Superfície de Resposta pelo Uso Combinado de Nitrogênio e Hidrogel no Sistema Milho/Aveia

Kraisig¹,

Scremin²,

Mantai³

et al. 2018

Proceeding Series of the Brazilian Society of Computational and Applied Mathematics

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Resumo. Na agricultura, o desenvolvimento de modelos matemáticos tem contribuído para o conhecimento fisiológico das culturas, na busca de inovação e validação de novas tecnologias. O cultivo da aveia brancaé muito comum na região sul do país e sua produtividadé e fortemente dependente do uso de nitrogênio, que se perde facilmente no ambiente. O emprego de hidrorretentores deágua no solo pode ser uma alternativa inovadora buscando melhorar a eficiência do nitrogênio. Dessa forma, o uso da modelagem matemática pode melhorar o entendimento das variáveis de produtividade da aveia e suas relações com o clima e o manejo do nitrogênio e hidrogel. Nesse contexto, o objetivo de estudoé o uso de regressão por superfície de resposta na otimização da combinação ideal de nitrogênio e hidrogel sobre a maior produtividade de grãos de aveia no sistema de sucessão milho/aveia. O uso de distintas doses do hidrorretentor associadasà adubação nitrogenada em cobertura influência positivamente na produtividade de grãos de aveia. A dose ajustada de hidrogel e nitrogênioà máxima produtividade de grãos no sistema milho/aveiaé ao redor de 60 e 100 kg ha −1 , respectivamente.Palavras-chave. Avena Sativa, nitrogênio, hidrogel, superfície de resposta, sistema milho/aveia. 1

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“…In one experiment, the reaction to drought stress was investigated of the oil fatty acid profile of different species in the Brassica genus and it was found that linoleic acid levels decreased significantly under stress conditions (Enjalbert et al, 2013). It has also been reported that drought stress at the flowering stage of canola reduced the amount of unsaturated fatty acids of seed oil, such as linoleic acid, linolenic acid and gadoleic acid, by 16%, 7% and 4%, respectively, compared to non-stress conditions (Tohidi Moghaddam et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…According to Jabbari et al, (2017), a high seed oil percentage is an important factor in the profitability of rapeseed production. The seed oil content is affected by drought stress (Aslam et al, 2009;Tohidi Moghaddam et al, 2011) and temperature (Aslam et al, 2009) during the grain-filling period. Reduced seed oil content and oil yield of rapeseed varieties have been reported under drought stress conditions during the flowering stage, which could be due to the oxidation of some unsaturated fatty acids and reduced ability to convert carbohydrates into oils under stress conditions (Jabbari et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Influence of drought stress and application of ammonium sulfate on quality of rapeseed oil

2020

ANRES

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Nowadays, drought stress is one of the most highlighted consequences of global warming, resulting in various environmental and economic drawbacks in the planting systems of important oil seed crops, particularly rapeseed. In the present study, an experiment was performed to assess the influence of drought stress and the application of ammonium sulfate on the quality of rapeseed oil during 2015-2016 and 2016-2017. This study was designed using a factorial split-plot based on complete randomized blocks with three replicates. Irrigation factors consisted of two levels (normal and irrigation interruption at the pod formation stage and at the elongation stage) and ammonium sulfate was included at two levels (0 kg/ha and 150 kg/ha), as a factorial set in the main plots (in factorial status in main plots) and cultivars (in subplots). The results showed the highest amount of grain oil (45.5%) was obtained in the second year of the experiment and under normal irrigation. The amount of oil increased by 2.5% using ammonium sulfate compared with the normal condition. The highest amounts of palmitic acid (5.2%) and oleic acid (65.5%) were obtained using the BAL128 line under normal irrigation, while the least palmitic acid (4.3%) and oleic acid (63.8%) were obtained using the Nima cultivar under irrigation interruption. The BAL128 line had the highest percentage of grain oil. Under normal irrigation, the use of ammonium sulfate decreased the amount of glucosinolate to 22.9%. The overall results of this study suggested that the BAL128 line was superior to the other genotypes in terms of the yield and quality of fatty acids; therefore this line might be applicable for farming or as a parent or both to increase the yield and quality in future breeding systems.

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Qualidade De Óleo De Cultivares De Canola Em Resposta Ao Estresse Hídrico E Aplicação De Polímero Hidroabsorvente

Cited by 22 publications

References 26 publications

Acquisition and Homeostasis of Iron in Higher Plants and Their Probable Role in Abiotic Stress Tolerance

Acquisition and Homeostasis of Iron in Higher Plants and Their Probable Role in Abiotic Stress Tolerance

Regressão por Superfície de Resposta pelo Uso Combinado de Nitrogênio e Hidrogel no Sistema Milho/Aveia

Influence of drought stress and application of ammonium sulfate on quality of rapeseed oil

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