Barium extraction potential by mustard, sunflower and castor bean

Coscione, Aline Renée; Berton, Ronaldo Severiano

doi:10.1590/s0103-90162009000100008

Cited by 48 publications

(35 citation statements)

References 11 publications

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“…A mamoneira (Ricinus communis L.) ou carrapateira, é uma oleaginosa de elevado valor socioeconômico para o semiárido; trata-se de uma planta rústica, que consegue alcançar elevada produção de biomassa em lugares de baixa precipitação pluvial (Coscione & Berton, 2009).…”

Section: Introductionunclassified

Rendimento e correlações da mamoneira consorciada com feijão-caupi e gergelim no semiárido paraibano

Furtado¹,

Souza²,

Júnior³

et al. 2014

Rev. bras. eng. agríc. ambient.

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R E S U M OCultivos consorciados representam benefícios econômicos e ambientais, por diversificar a produção na propriedade rural. Propôs-se, então, avaliar o rendimento e o grau de relacionamento entre características agronômicas da mamoneira em cultivo isolado e consorciado com feijão-caupi e gergelim. O experimento foi desenvolvido no período de março a novembro de 2011 em condições de campo, em Pombal, PB. Foram utilizados o delineamento em blocos casualizados em esquema fatorial 2 x 3 + 2, sendo 2 cultivares de mamona (IAC 2028 e BRS Nordestina), 3 sistemas de cultivo (monocultivo e consórcio com feijão-caupi ou gergelim) mais 2 tratamentos adicionais (feijão-caupi e gergelim em monocultivo) com 4 repetições. Avaliaram-se, também, as seguintes características: produção de grãos por planta (g), rendimento relativo (%), contribuição relativa das ordens dos racemos na produtividade total e estudo de correlações. Ocorreu em média maior contribuição de racemos secundários na produtividade total. O comprimento do racemo e o número de frutos por racemo são características altamente correlacionadas; dentre as culturas avaliadas a melhor opção de cultura companheira para o cultivo consorciado da mamoneira na região é o feijão-caupi.Yield and correlations of castor bean intercropped with cowpea and sesame in semiarid region of Paraíba A B S T R A C TIntercropping represents environmental and economic benefits due to production diversity on the farm. This study aimed to evaluate the yield and the degree of relationship between agronomic characteristics of two cultivars of castor bean as isolated crop and intercropped with cowpea and sesame. The experiment was carried out from March to November 2011 under field conditions at Pombal, in the State of Paraíba. The experimental design was a randomized block in factorial 2 x 3 + 2, using 2 castor bean cultivars (IAC 2028 and BRS Nordestina), 3 cropping systems (monoculture and intercropping with cowpea or sesame) plus 2 additional treatments (cowpea and sesame monoculture) with 4 replications. The following characteristics were evaluated: grain yield per plant (g), relative yield (%), the relative contribution of the orders of clusters in total productivity. On average there was a greater contribution of secondary clusters in total productivity. The length of the cluster and number of fruits in cluster are highly correlated. Between the intercrops evaluated the best choice of companion crops for intercropping of castor bean in the region is the cowpea. Palavras-chave:Ricinus communis L. sistema de manejo sequeiro

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Section: Introductionunclassified

Rendimento e correlações da mamoneira consorciada com feijão-caupi e gergelim no semiárido paraibano

Furtado¹,

Souza²,

Júnior³

et al. 2014

Rev. bras. eng. agríc. ambient.

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“…Among the few studies available in Brazil, many have been restricted to academics (Carneiro et al, 2001;Coscione and Berton, 2009;Gabos et al, 2009;Marques et al, 2000;Pereira et al, 2007;Romeiro et al, 2006;Santos et al, 2007;Zeittouni et al, 2007). In spite of that, promising species well known in Brazilian agriculture due to its robustness, good climate adaptation, deep root system and good biomass production have not been evaluated.…”

Section: Introductionmentioning

confidence: 99%

Vegetable species for phytoextraction of boron, copper, lead, manganese and zinc from contaminated soil

Santos

Rodella²,

Abreu

et al. 2010

Sci. agric. (Piracicaba, Braz.)

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Phytoremediation is an attractive option to remove metal from contaminated soil since it is a simple, low-cost, and environmentally friendly procedure. To better examine the phytoremediation potential of kenaf (Hybiscus canabinnus), mustard (Brassica juncea), turnip (Raphunus sativus) and amaranth (Amaranthus crentus) plants, a greenhouse experiment was performed in which these species were grown on a soil contaminated with Zn, Cu, Mn, Pb and B. The translocation, the bioconcentration and the removal index, the transference factor and the time to reach 50% of element removal from soil, among other indicators, were used in order to identify a hyperaccumulator. Kenaf plants were more tolerant to the conditions tested, with the highest dry matter production and no visual toxicity symptoms. Amaranth would be the species chosen to remediate the soil under field conditions as it presented the higher indexes for decontamination of Zn and Mn and was also able to remove B. Turnip showed the best results for Pb removal. All species tested were able to remove B from soil. In spite, none of the plant species tested could be characterized as a hyperaccumulator.

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“…This may be due to the fact that the Ba concentration in solutions was not high enough to affect Ba uptake in reeds. According to Coscione and Berton [34], the difference of Ba contents in sunfl ower grown in artifi cial Ba-contaminated soils was not signifi cant, until up to the dose of 300 mg/ kg Ba. Different from the roots, the Ba level in shoots of reeds was not affected by the concentration of Ba in solutions at all (Fig.…”

Section: Resultsmentioning

confidence: 99%