Caracterização de sintomas visuais de deficiências de macronutrientes e boro em plantas de gengibre ornamental

Coelho, Viviane Amaral Toledo; Rodas, Cleber Lázaro; Coelho, Lívia Cristina; Carvalho, Janice Guedes de; Almeida, Elka Fabiana Aparecida; Figueiredo, Madeleine Alves de

doi:10.14295/rbho.v18i1.692

Cited by 9 publications

(8 citation statements)

References 7 publications

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“…Reduction nearly 60% in the number of emitted shoots, 66% in the average leaf dry mass production, and 50% in the underground dry mass, 35% in leaf number and 27% in leaf area were observed, when compared to growth indicators of the complete treatment (Table 1). Similar decreases in growth were also observed in other ornamental Zingiberales, as Zingiber spectabilis, in macronutrients deficiency experiment (COELHO et al, 2012). Nitrogen omission caused decrease in the concentration of this nutrient in the evaluated organs, in both phases, when compared to the complete treatment.…”

Section: Resultssupporting

confidence: 78%

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Macronutrients deficiency inHeliconia psittacorumxHeliconia spathocircinata‘Golden Torch’

Castro

Willadino

Loges

et al. 2015

Revista Ciência Agronômica

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Section: Resultssupporting

confidence: 78%

“…Antagonistic results were observed in other Zingiberales ornamental as Etlingera elatior and Zingiber spectabilis, planted by seed and subjected to nutritional stress, while growth compromised (COELHO et al, 2012;FRAZÃO et al, 2010).…”

Section: Resultsmentioning

confidence: 77%

Macronutrients deficiency inHeliconia psittacorumxHeliconia spathocircinata‘Golden Torch’

Castro

Willadino

Loges

et al. 2015

Revista Ciência Agronômica

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“…Para Fernandes (2006), esse sintoma é devido o elemento K ser bastante móvel no floema. Sintomas semelhantes de deficiência de K foram também descritos por Coelho et al (2012), estudando deficiências nutricionais nesta mesma espécie.…”

Section: Sintomas De Deficiência De Kunclassified

Potássio e sódio na composição mineral e crescimento em plantas de Zingiber spectabile

Coelho

Dias

Ferreira

et al. 2017

Agraria

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RESUMOPara plantas ornamentais tropicais não há informações na literatura referentes à interação do sódio (Na) com outros nutrientes, principalmente o potássio (K). Diante do exposto, o objetivo desse trabalho foi avaliar os sintomas de deficiências nutricionais, crescimento e composição mineral em plantas de Zingiber spectabile submetidas a relações K:Na, em solução nutritiva. Os tratamentos com diferentes relações K: Na (mmol L -1 ) foram: 6K:0Na, 5K:1Na, 4K:2Na, 3K:3Na, 2K:4Na, 1K:5Na e 0K:6Na. Utilizou-se o delineamento experimental em blocos casualizados com quatro repetições, sendo a parcela experimental composta por uma planta por vaso. Após 180 dias, as plantas foram colhidas, sendo os índices biométricos e massas secas das diferentes partes das plantas avaliadas, e posteriormente realizada a análise química dos tecidos vegetais. O Na mostrou ser elemento benéfico para o crescimento inicial de Zingiber spectabile. O Na a partir de 2 mmol L -1 pode substituir em parte o K no cultivo inicial de Zingiber spectabile em solução nutritiva.Palavras-chave: gengibre ornamental; nutrientes; plantas ornamentais tropicais Potassium and sodium mineral composition and growth in Zingiber spectabile plant ABSTRACTFor tropical ornamental plants there is no information in the literature regarding the interaction of sodium (Na) with other nutrients, especially potassium (K). Given the above, the objective of this study was to evaluate the symptoms of nutritional deficiencies, growth and mineral composition of plants Zingiber spectabile subjected to K relations: In in nutrient solution. Treatments with different relationships K: Na (mmol L -1 ) were: 6K:0Na, 5K:1Na, 4K:2Na, 3K:3Na, 2K:4Na, 1K:5Na and 0K:6Na. We used the experimental randomized block design with four replications, and the experimental plot was composed of one plant per pot. After 180 days, the plants were harvested, and the biometric indexes and dry weight of different parts of the plants evaluated, and thereafter performed chemical analysis of the plant tissues. Sodium proved beneficial element for the initial growth of Zingiber spectabile. Sodium from 2 mmol L -1 can partly replace potassium in the initial culture of Zingiber spectabile in nutrient solution.

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“…Large amount of these elements are required for plants to develop and meet its physiological activity. The macronutrients play a vital role in plant structure [8].…”

Section: Macronutrientsmentioning

confidence: 99%

Tolerance of Plants to Toxicity Induced by Micronutrients

Lobato¹,

Lima²,

Lobato³

et al. 2016

Abiotic and Biotic Stress in Plants - Recent Advances and Future Perspectives

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Micronutrient elements such as zinc, boron copper, iron, manganese, molybdenum, and chlorine are frequently responsible by the regulatory activity of the cell organelles, being nutrients that are absorbed and found in lower concentrations in plant tissues, they also contribute to supply the nutritional exigency of the plant. Study with Zea mays plants exposed to Zn toxicity + Si presented significant increases in stomatal conductance, net photosynthetic rate, transpiration rate, and water use efficiency, respectively, in comparison with treatment only with Zn. In relation to chlorophylls a, b and total and carotenoids presented non-significant increases, when compared to plants exposed to Zn toxicity. This study revealed the positive contribution of the Si on gas exchange and reduction of the negative effects provoked on chlorophylls and carotenoids in maize plants under Zn toxicity. Other results described that prolonged exposure to excessive Cu resulted in serious toxic effects on the rice seedlings. In contrast, Tre pretreatment has been shown to be beneficial in alleviating Cu toxicity, which was mainly attributed to the ability of Tre to restrict Cu uptake and accumulation to maintain Cu homeostasis, and to induce production of antioxidant and Gly enzymes to alleviate excessive Cu-triggered oxidative stress. Stress caused by the excessive supply of micronutrients to plants frequently promotes repercussions on oxidant system, inducing the overproduction of reactive oxygen species. The oxidative damage is a situation characterized by the large ROS accumulation and insufficient detoxification promoted by antioxidant enzymes, such as catalase and glutathione peroxidase. Different mechanisms have been proposed to explain the tolerance of plants to toxicity induced by micronutrients, as uses of other elements and substances, in which it can positively act with specific transporters, metal ion homeostasis and compartmentalization of micronutrients into the vacuole. Keywords: gas exchange, antioxidant metabolism, metals, photosynthetic pigments © 2016 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. . IntroductionLarge amounts of minerals and organic materials can be found in soil [ ] and some of these materials have great significance in the anatomical development and plant morphology. The soil fertility is an important factor of agronomic order. It is related to provision of essential elements in the soil, where the plant will absorb adequate levels of important substances to work with its metabolism [ ]. The nutrients are arranged in ionic form, which can interact with the root system of plants via three mechanisms interception root, diffusion, or mass flow [ ].The plants require basic conditions to develop and supply the essential elements to aid with the metabolism ...

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Caracterização de sintomas visuais de deficiências de macronutrientes e boro em plantas de gengibre ornamental

Cited by 9 publications

References 7 publications

Macronutrients deficiency inHeliconia psittacorumxHeliconia spathocircinata‘Golden Torch’

Macronutrients deficiency inHeliconia psittacorumxHeliconia spathocircinata‘Golden Torch’

Potássio e sódio na composição mineral e crescimento em plantas de Zingiber spectabile

Tolerance of Plants to Toxicity Induced by Micronutrients

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