RESUMO
The possibility of using physic nut oil as an alternative energy source indicates that it is necessary to carry out studies concerning the absorption and accumulation of nutrients in the distinct phases of development of the crop for the appropriate management of fertilizer application. Given this information,this study aimed to evaluate the accumulation of nutrients in the shoots of physic nut plants, as well as to identify critical nutrient uptake by this crop. The experiments were set up independently in two different locations, from May 2010 to March 2013, and using the same procedures. The locations were characterized as follows: Rhodic Hapludox in the municipality of Curvelo, MG; Typic Quartzipsamment in the municipality of Diamantina, MG. The experiments were conducted in a randomized block design with three replicates, the treatments being the evaluation times of the physic nut plants in both experiments. The collection times were every 30 days from planting of the seedlings in the field for a period of 1,036 days, corresponding to 36 evaluations. After collection, the samples were prepared and submitted to chemical analysis of the nutrient concentration of the plant material. The concentrations were reported as nutrient content of the leaves, stems and fruit of physic nut plants. According to the results, it can be concluded that nutrient accumulation was higher in the edaphoclimatic conditions of Curvelo compared to the conditions of Diamantina. The concentration of macronutrients was in the following order: K>Ca>N>P>S>Mg in Diamantina and N>Ca>K>P>Mg>S in Curvelo. Accumulation of micronutrients in the shoots at 1036 days after planting physic nut seedlings in the field was in the following order: Mn>B>Fe>Zn>Cu in Diamantina and Mn>Fe>B>Zn>Cu in Curvelo.(AU)
Com a possibilidade de utilização do óleo do pinhão-manso como uma alternativa energética, tem-se a necessidade de realizar estudos referentes à absorção e acúmulo de nutrientes nas diferentes fases de desenvolvimento da cultura para manejo adequado da adubação. Diante do exposto, objetivou-se com esse trabalho avaliar o acúmulo de nutrientes na parte aérea do pinhão-manso, bem como, identificar as fazes críticas de absorção de nutrientes por parte dessa cultura. Os experimentos foram montados independentemente, onde foram utilizados os mesmos procedimentos, no período de maio de 2010 a março de 2013 em locais distintos caracterizados a seguir: Latossolo Vermelho distrófico no município de Curvelo, MG, e o outro, em Neossolo Quartzarênico Órtico típico no município de Diamantina, MG. Os experimentos foram conduzidos em delineamento experimental em blocos casualizados com três repetições, sendo os tratamentos as épocas de avaliação das plantas de pinhão-manso para ambos os experimentos. As épocas de coletas foram a cada 30 dias a partir do plantio das mudas no campo num período de 1.036 dias que corresponderam a 36 avaliações. Após a coleta, as amostras foram preparadas e submetidas às análises químicas do material vegetal dos teores de nutrientes. Os teores foram convertidos em conteúdo de nutrientes nas folhas, caules e frutos das plantas de pinhão-manso. De acordo com os resultados, foi possível concluir que o acúmulo de nutriente foi maior nas condições edafoclimáticas de Curvelo em relação às condições de Diamantina e a sequência de extração para os macronutrientes foi, K>Ca>N>P>S>Mg em Diamantina e N>Ca>K>P>Mg>S em Curvelo. Para os micronutrientes a ordem de acúmulo foi, Mn>B>Fe>Zn>Cu em Diamantina e Mn>Fe>B>Zn>Cu emCurvelo, na parte aérea, aos 1.036 dias após o plantio das mudas de pinhão-manso no campo.(AU)
Assuntos
Jatropha/análise , NutrientesRESUMO
The possibility of using physic nut oil as an alternative energy source indicates that it is necessary to carry out studies concerning the absorption and accumulation of nutrients in the distinct phases of development of the crop for the appropriate management of fertilizer application. Given this information,this study aimed to evaluate the accumulation of nutrients in the shoots of physic nut plants, as well as to identify critical nutrient uptake by this crop. The experiments were set up independently in two different locations, from May 2010 to March 2013, and using the same procedures. The locations were characterized as follows: Rhodic Hapludox in the municipality of Curvelo, MG; Typic Quartzipsamment in the municipality of Diamantina, MG. The experiments were conducted in a randomized block design with three replicates, the treatments being the evaluation times of the physic nut plants in both experiments. The collection times were every 30 days from planting of the seedlings in the field for a period of 1,036 days, corresponding to 36 evaluations. After collection, the samples were prepared and submitted to chemical analysis of the nutrient concentration of the plant material. The concentrations were reported as nutrient content of the leaves, stems and fruit of physic nut plants. According to the results, it can be concluded that nutrient accumulation was higher in the edaphoclimatic conditions of Curvelo compared to the conditions of Diamantina. The concentration of macronutrients was in the following order: K>Ca>N>P>S>Mg in Diamantina and N>Ca>K>P>Mg>S in Curvelo. Accumulation of micronutrients in the shoots at 1036 days after planting physic nut seedlings in the field was in the following order: Mn>B>Fe>Zn>Cu in Diamantina and Mn>Fe>B>Zn>Cu in Curvelo.
Com a possibilidade de utilização do óleo do pinhão-manso como uma alternativa energética, tem-se a necessidade de realizar estudos referentes à absorção e acúmulo de nutrientes nas diferentes fases de desenvolvimento da cultura para manejo adequado da adubação. Diante do exposto, objetivou-se com esse trabalho avaliar o acúmulo de nutrientes na parte aérea do pinhão-manso, bem como, identificar as fazes críticas de absorção de nutrientes por parte dessa cultura. Os experimentos foram montados independentemente, onde foram utilizados os mesmos procedimentos, no período de maio de 2010 a março de 2013 em locais distintos caracterizados a seguir: Latossolo Vermelho distrófico no município de Curvelo, MG, e o outro, em Neossolo Quartzarênico Órtico típico no município de Diamantina, MG. Os experimentos foram conduzidos em delineamento experimental em blocos casualizados com três repetições, sendo os tratamentos as épocas de avaliação das plantas de pinhão-manso para ambos os experimentos. As épocas de coletas foram a cada 30 dias a partir do plantio das mudas no campo num período de 1.036 dias que corresponderam a 36 avaliações. Após a coleta, as amostras foram preparadas e submetidas às análises químicas do material vegetal dos teores de nutrientes. Os teores foram convertidos em conteúdo de nutrientes nas folhas, caules e frutos das plantas de pinhão-manso. De acordo com os resultados, foi possível concluir que o acúmulo de nutriente foi maior nas condições edafoclimáticas de Curvelo em relação às condições de Diamantina e a sequência de extração para os macronutrientes foi, K>Ca>N>P>S>Mg em Diamantina e N>Ca>K>P>Mg>S em Curvelo. Para os micronutrientes a ordem de acúmulo foi, Mn>B>Fe>Zn>Cu em Diamantina e Mn>Fe>B>Zn>Cu emCurvelo, na parte aérea, aos 1.036 dias após o plantio das mudas de pinhão-manso no campo.
Assuntos
Jatropha/análise , NutrientesRESUMO
The meal of Jatropha curcas (JCM) seed is a by-product of the biofuel industry and may potentially to be used as animal feed. However, its toxicity has prevented its utilization in animal nutrition mainly due to its high concentration of phorbol esters. This study was conducted to evaluate the effects of the dietary inclusion of JCM on the growth performance, feed digestibility and internal organs development of broilers. Thirty two 48-d-old Ross 308 broiler chickens housed in 16 pens (2 birds/pen) were used in this study. Birds were randomly allocated to dietary treatments comprising four JCM levels (negative control, 25, 50, or 100 g JCM/kg of diet) for four weeks. Results showed that increasing levels of JCM had a negative impact on broiler performance, reducing live weight, weight gain, and feed intake. Treatments led to a decrease of the relative weight of testis and spleen, and to an increase in heart relative weight. In broilers fed diets containing JCM, the testis were atrophic, presenting reduced size of the seminiferous tubule, which were small and lined within active sertoli cells and rare spermatogonia. This study illustrates the negative impact of diets containing JCM on broiler performance and JCM pathological effects on several organs.
Assuntos
Animais , Galinhas/anatomia & histologia , Galinhas/lesões , Jatropha/análise , Jatropha/provisão & distribuiçãoRESUMO
The meal of Jatropha curcas (JCM) seed is a by-product of the biofuel industry and may potentially to be used as animal feed. However, its toxicity has prevented its utilization in animal nutrition mainly due to its high concentration of phorbol esters. This study was conducted to evaluate the effects of the dietary inclusion of JCM on the growth performance, feed digestibility and internal organs development of broilers. Thirty two 48-d-old Ross 308 broiler chickens housed in 16 pens (2 birds/pen) were used in this study. Birds were randomly allocated to dietary treatments comprising four JCM levels (negative control, 25, 50, or 100 g JCM/kg of diet) for four weeks. Results showed that increasing levels of JCM had a negative impact on broiler performance, reducing live weight, weight gain, and feed intake. Treatments led to a decrease of the relative weight of testis and spleen, and to an increase in heart relative weight. In broilers fed diets containing JCM, the testis were atrophic, presenting reduced size of the seminiferous tubule, which were small and lined within active sertoli cells and rare spermatogonia. This study illustrates the negative impact of diets containing JCM on broiler performance and JCM pathological effects on several organs.(AU)
Assuntos
Animais , Jatropha/análise , Jatropha/provisão & distribuição , Galinhas/anatomia & histologia , Galinhas/lesõesRESUMO
Neosilba spp. is firstly reported in physic nut fruits (Jatropha curcas), in Rio Largo, State of Alagoas, Brazil. A total of 438 specimens were found on 1,000 fruits between May and July 2010. Five species were recorded in the State of Alagoas: Neosilba zadolicha McAlpine & Steyskal 1982, Neosilba glaberrima (Wiedemann, 1830), Neosilba certa (Walker, 1850), Neosilba pendula (Bezzi) and Neosilba bella Strikis & Prado 2008. This is the first record of J. curcas as host plant of Neosilba in Brazil. (AU)
PRIMEIRO REGISTRO DE NEOSILBA(DIPTERA: LONCHAEIDAE) EM JATROPHA CURCASL. NO BRASIL. Relata-se pela primeira vez a ocorrência de Neosilba (Diptera: Lonchaeidae) em frutos de pinhão manso (Jatropha curcas) no Município de Rio Largo, AL, Brasil. O total de 438 exemplares foi obtido de 1.000 frutos entre os meses de maio a julho de 2010. Cinco espécies foram registradas: Neosilba zadolicha McAlpine & Steyskal, 1982 Neosilba glaberrima (Wiedemann, 1830), Neosilba certa (Walker, 1850), Neosilba pendula (Bezzi) e Neosilba bella Strikis & Prado, 2008. Este é o primeiro registro de J. curcas como planta hospedeira de Neosilba no Brasil. (AU)
Assuntos
Animais , Jatropha/análise , Dípteros/classificaçãoRESUMO
Neosilba spp. is firstly reported in physic nut fruits (Jatropha curcas), in Rio Largo, State of Alagoas, Brazil. A total of 438 specimens were found on 1,000 fruits between May and July 2010. Five species were recorded in the State of Alagoas: Neosilba zadolicha McAlpine & Steyskal 1982, Neosilba glaberrima (Wiedemann, 1830), Neosilba certa (Walker, 1850), Neosilba pendula (Bezzi) and Neosilba bella Strikis & Prado 2008. This is the first record of J. curcas as host plant of Neosilba in Brazil.
PRIMEIRO REGISTRO DE NEOSILBA(DIPTERA: LONCHAEIDAE) EM JATROPHA CURCASL. NO BRASIL. Relata-se pela primeira vez a ocorrência de Neosilba (Diptera: Lonchaeidae) em frutos de pinhão manso (Jatropha curcas) no Município de Rio Largo, AL, Brasil. O total de 438 exemplares foi obtido de 1.000 frutos entre os meses de maio a julho de 2010. Cinco espécies foram registradas: Neosilba zadolicha McAlpine & Steyskal, 1982 Neosilba glaberrima (Wiedemann, 1830), Neosilba certa (Walker, 1850), Neosilba pendula (Bezzi) e Neosilba bella Strikis & Prado, 2008. Este é o primeiro registro de J. curcas como planta hospedeira de Neosilba no Brasil.