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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Influ?ncia dos cultivos de milho e Crotalaria juncea inoculados com fungo micorr?zico arbuscular (FMA) no desempenho agron?mico de batata-doce em sucess?o. / Influence of corn and Crotalaria juncea inoculated with arbuscular mycorrhizal fungi (AMF) on the agronomic performance of sweet potato in succession

Souza, Juscelio Ramos de 16 July 2010 (has links)
Made available in DSpace on 2016-04-28T14:58:31Z (GMT). No. of bitstreams: 1 Juscelio Ramos de Sousa.pdf: 3303104 bytes, checksum: 65b092dbbb35fdbdb8cff8cdfa2dc871 (MD5) Previous issue date: 2010-07-16 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / The study was conducted at the Experimental Field of Embrapa Agrobiologia Serop?dica, with the aim: to evaluate the effects of the corn and Crotalaria juncea inoculated with Glomus clarum on the capacity of multiplication of arbuscular mycorrhizal fungi (AMF) and performance of potato sweet (Ipomoea batatas) in succession. Constituted the treatments: T1 - (Crotalaria + 0 spores FMA/m-1), T 2 - (Crotalaria + 300 spores FMA/m-1), T3-(Crotalaria + 900 spores FMA/m-1); T4 - (Crotalaria + 1800 spores FMA/m-1), T5-( Corn + 0 spores FMA/m-1) T6 - (Corn + 300 spores FMA/m-1) T7 - (Corn + 900 spores FMA/m-1) and T8 - (Corn + 1800 spores FMA/m-1) . Adopted was randomized block design, were estimated the biomass of shoots of each species, the number of spores and total G. clarum, the rate of colonization, the levels and amounts of N, P and K as well as the productivity of sweet potato tubers in commercial value. Pre cultivation of Crotalaria juncea showed higher root yield and part air of sweet potatoes when compared to corn. Inoculation with Glomus clarum allowing higher concentrations and total accumulation of N, P and K in shoots of maize and Crotalaria juncea. Inoculation with G.clarum pre cultivation Crotalaria juncea, allowing higher concentrations and total accumulation of N, P and K in shoots of sweet potatoes when compared to pre-cultivation with corn. The highest level of mycorrhizal colonization of sweet potato, was obtained after pre cultivation maize inoculated with G. clarum. The highest yield of sweet potato was obtained after cultivation of Crotalaria juncea inoculated at a dose of 1050 spores G. clarum per meter. / O estudo foi realizado no Campo Experimental da Embrapa Agrobiologia, Serop?dica, RJ, tendo por objetivo: avaliar os efeitos dos cultivos de milho e Crotalaria juncea inoculados com Glomus clarum, na capacidade de multiplica??o deste fungo micorr?zico arbuscular (FMA) e no desempenho da batata-doce (Ipomoea batatas) em sucess?o. Constitu?ram os tratamentos: T1 (Crotal?ria + 0 esporos de FMA/m-1); T 2- (Crotalaria + 300 esporos de FMA/m-1); T3- (Crotal?ria + 900 esporos de FMA/m-1); T4 (Crotal?ria + 1800 esporos de FMA/m-1); T5- (Milho + 0 esporos de FMA/m-1); T6 (Milho + 300 esporos FMA/m-1); T7 (Milho + 900 esporos FMA/m-1) e T8 (Milho + 1800 esporos FMA/m-1. Adotou-se delineamento experimental de blocos casualizados, estimaram-se as biomassas da parte a?rea de cada esp?cie, o n?mero de esporos de FMA totais e de G. clarum, a taxa de coloniza??o micorr?zica, os teores e quantidades de N, P e K, assim como a produtividade da batata-doce em tub?rculos de padr?o comercial. O pr? cultivo de Crotalaria juncea proporcionou maior produtividade de ra?zes e da parte a?rea de batata doce, quando comparado ao milho. A inocula??o com o FMA G. clarum proporcionou aumento nos teores e acumula??o total de N, P e K na parte a?rea do milho e da Crotalaria juncea. A inocula??o com o FMA Glomus clarum no pr? cultivo de Crotalaria juncea, proporcionou aumento nos teores e acumula??o total de N, P e K na parte a?rea da batata doce, quando comparado ao pr? cultivo com milho. O n?vel mais elevado de coloniza??o micorr?zica da batata doce, foi obtido ap?s o pr? cultivo de milho inoculado com Glomus clarum. A maior produtividade de batata doce foi obtida ap?s o cultivo de Crotalaria juncea inoculado na dose de 1050 esporos de Glomus clarum por metro linear.

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