2013
DOI: 10.5433/1679-0359.2013v34n1p147
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Emergência de plântulas e crescimento inicial do pinhão manso exposto a alumínio

Abstract: ResumoO pinhão manso (Jatropha curcas L.) é uma oleaginosa com potencial para a produção de biodiesel com poucas informações a respeito do efeito do alumínio sobre a germinação e crescimento inicial. Objetivou-se avaliar a germinação de sementes e o crescimento inicial do pinhão manso exposto a soluções de alumínio na água de irrigação. No primeiro experimento avaliou-se a emergência das plântulas na presença de cinco concentrações da solução de alumínio hexahidratado (AlCl 3 .6H 2 O) na água de irrigação: 0, … Show more

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Cited by 5 publications
(6 citation statements)
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“…The results observed in this study confirm information observed in the review of Gordin et al (2013) which suggests that the correction of the acidity and fertility of the soil is crucial for success and profitability in this culture, requiring the completion of setting. These authors concluded that toxic effects of aluminum on the growth of the plants of J. curcas are perceived from the levels of 5 mmol L -1 , behavior that corroborates the results observed in this work for growth and metabolism photosynthetic.…”
Section: Discussionsupporting
confidence: 87%
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“…The results observed in this study confirm information observed in the review of Gordin et al (2013) which suggests that the correction of the acidity and fertility of the soil is crucial for success and profitability in this culture, requiring the completion of setting. These authors concluded that toxic effects of aluminum on the growth of the plants of J. curcas are perceived from the levels of 5 mmol L -1 , behavior that corroborates the results observed in this work for growth and metabolism photosynthetic.…”
Section: Discussionsupporting
confidence: 87%
“…crurcas plants to be compared to the witness, showed 26% reduction in the length of the shoot when grown with irrigation water containing 20 mmol L -1 , with values ranged from other levels tested (5, 10:15 mmol L -1 ). The leaf area was only possible be evaluated in plants irrigated with 5mmol L -1 and not varied among plants witness; in higher levels, plants presented symptoms of toxicity in the air, as the winding foliar edges, chlorosis, necrosis and death of some plants (GORDIN et al, 2013). Similar results from reduced height growth and dimming characteristic of aluminum toxicity to the same species were observed by Macedo et al (2011).…”
Section: Discussionmentioning
confidence: 67%
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“…A inibição da elongação radicular é o primeiro e mais significante sintoma da toxicidade do Al, podendo ser detectado dentro de poucos minutos após o contato da raiz com o metal apresentando raízes laterais mais finas (GORDIN et al, 2013;KISNIERIENĖ;LAPEIKAITĖ, 2015). Essa inibição do crescimento das raízes pode ser acompanhada de morte celular programada e perda de integridade da membrana.…”
Section: Resultsunclassified