Effect of calcium and magnesium silicate on the growth of the castor oil plant subjected to salinity levels
Efeito de silicato de cálcio e magnésio sobre o crescimento de plantas de mamoneira submetidas a níveis de salinidade

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ID: 89087
2012
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Abstract
Salt stress decreases the osmotic potential of soil solution causing water stress, causing toxic effects in the plants resulting in injuries on the metabolism and nutritional disorders, thus compromising the plant growth, resulting in lower production. The calcium silicate and magnesium can perform the same function as limestone, besides providing silicon to plants, may also contribute to the resistance of plants to salt stress. Thus, the objective of this study was to evaluate the effect of calcium and magnesium silicate on the growth of the castor oil plant BRS Energia cultivated under saline conditions. This study evaluated plant height, stem diameter, number of leaves, leaf area, dry weight of shoot and root, and soil chemical characteristics. There was no interaction between factors of salinity level and of silicate level regarding the evaluated variables. There was a direct relationship between salinity levels and plant growth in height and stem diameter. The K concentration in soil were affected by salinity levels.

O estresse salino diminui o potencial osmótico da solução do solo causando estresse hídrico, provocando efeitos tóxicos nas plantas que resultam em injúrias no metabolismo e desordens nutricionais, comprometendo assim o crescimento das plantas, resultando em menor produção. O silicato de cálcio e magnésio pode desempenhar a mesma função do calcário, além de fornecer silício para as plantas, podendo ainda, contribuir para a resistência de plantas ao estresse salino. Nesse sentido, objetivou-se com esse trabalho avaliar o efeito do silicato de cálcio e magnésio no crescimento da mamoneira BRS Energia cultivada sob condições salinas. Avaliou-se a altura da planta, diâmetro do caule, número de folhas, área foliar, massa seca da parte aérea e da raiz e as características químicas do solo. Não houve interação entre os fatores níveis de salinidade e silicato sobre as variáveis analisadas. Houve relação direta entre os níveis de salinidade e o crescimento da planta em altura e diâmetro do caule. Os teores de K no solo foram influenciados pelos níveis de salinidade.

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neto2012effectsemina Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Neto, José Félix Brito;Beltrão, Napoleão de Esberard Macêdo;Rigon, João Paulo Gonsiorkiewicz;Capuani, Silvia;
Journal semina: ciências agrárias
Year 2012
DOI
DOI not found
URL
http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/10398
Keywords
chemistry Biology (General) Botany Engineering (General). Civil engineering (General) Technology Agriculture (General) physics agriculture mining engineering. metallurgy

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