ESTIMATIVA DO COEFICIENTE DE DETERMINAÇÃO GENOTÍPICA EM MAMOEIROS (Carica papaya L.) INOCULADOS COM FUNGO MICORRÍZICO ARBUSCULAR
O trabalho objetivou determinar o coeficiente de determinação genotípica (b) do mamoeiro (Carica papaya L.) quanto à capacidade de se associar e responder ao fungo micorrízico arbuscular (FMA) Gigaspora margarita. O experimento foi instalado em casa de vegetação da Embrapa Mandioca e Fruticultura, u...
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Published in: | Revista Brasileira de fruticultura Vol. 23; no. 3; pp. 607 - 612 |
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01-12-2001
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Abstract | O trabalho objetivou determinar o coeficiente de determinação genotípica (b) do mamoeiro (Carica papaya L.) quanto à capacidade de se associar e responder ao fungo micorrízico arbuscular (FMA) Gigaspora margarita. O experimento foi instalado em casa de vegetação da Embrapa Mandioca e Fruticultura, usando solo com uma dose única de fósforo (20 mg dm-3). Os tratamentos foram representados por quatro genótipos de cada um dos grupos 'Solo' e 'Formosa', mais as variedades 'Improved Sunrise Solo Line 72/12' e 'Tainung Nº 1', submetidas ou não à inoculação do fungo Gigaspora margarita. Foi utilizado um delineamento de blocos casualizados, com 4 repetições. Após a coleta dos dados, estimou-se o coeficiente "b" para os seguintes caracteres: parte aérea, comprimento de raiz, altura de planta, eficiência micorrízica e colonização. Os genótipos testados responderam à inoculação do fungo MA; os genótipos do grupo Formosa apresentaram menor comprimento de raiz; a eficiência micorrízica e a colonização radicular média para os dois grupos de plantas foram similares, situando-se em 60% e 50%, respectivamente; a inoculação aumentou a absorção de P, K e Cu, sendo esse efeito maior na variedade representante de cada grupo; o coeficiente "b" demonstrou que o melhoramento de plantas pode modular a produção de parte aérea, comprimento de raízes, altura de plantas e a eficiência micorrízica do grupo Formosa; para o grupo Solo este efeito mostrou-se mais provável para colonização radicular e menos provável para produção de parte aérea, eficiência micorrízica, comprimento de raízes e altura de plantas.
An experiment was conducted at the Embrapa -- Cassava and Tropical Fruit Crops with the aim of estimating the genotypic determination coefficient (b) of papaya for its capacity of associate and response to arbuscular mycorrhizal fungi (AMF). Four genotypes and one variety of both "Solo"and "Formosa" groups were tested, inoculated or not with Gigaspora margarita in a soil which received 30 mg dm-3 of phosphorus. Data of shoot dry weight (SDW), mycorrhizal efficiency and colonization were statistically analized to generate the coefficient. All genotypes responded significantly to AMF but plants from "Formosa" group showed lower root length; mycorrhiza efficiency and colonization were similar for both groups, but there was no correlation between these characteristics; inoculation increased P, K and Cu absorption with higher values for the variety of each group. Coefficient "b" showed that for "Formosa" group, plant breeding may modulate shoot plant production, root length, plant heigth and mycorrhizal effeciency; for "Solo"group this effect showed to be more probable for root colonization than to mycorrhizal efficiency. |
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AbstractList | O trabalho objetivou determinar o coeficiente de determinação genotípica (b) do mamoeiro (Carica papaya L.) quanto à capacidade de se associar e responder ao fungo micorrízico arbuscular (FMA) Gigaspora margarita. O experimento foi instalado em casa de vegetação da Embrapa Mandioca e Fruticultura, usando solo com uma dose única de fósforo (20 mg dm-3). Os tratamentos foram representados por quatro genótipos de cada um dos grupos 'Solo' e 'Formosa', mais as variedades 'Improved Sunrise Solo Line 72/12' e 'Tainung Nº 1', submetidas ou não à inoculação do fungo Gigaspora margarita. Foi utilizado um delineamento de blocos casualizados, com 4 repetições. Após a coleta dos dados, estimou-se o coeficiente "b" para os seguintes caracteres: parte aérea, comprimento de raiz, altura de planta, eficiência micorrízica e colonização. Os genótipos testados responderam à inoculação do fungo MA; os genótipos do grupo Formosa apresentaram menor comprimento de raiz; a eficiência micorrízica e a colonização radicular média para os dois grupos de plantas foram similares, situando-se em 60% e 50%, respectivamente; a inoculação aumentou a absorção de P, K e Cu, sendo esse efeito maior na variedade representante de cada grupo; o coeficiente "b" demonstrou que o melhoramento de plantas pode modular a produção de parte aérea, comprimento de raízes, altura de plantas e a eficiência micorrízica do grupo Formosa; para o grupo Solo este efeito mostrou-se mais provável para colonização radicular e menos provável para produção de parte aérea, eficiência micorrízica, comprimento de raízes e altura de plantas.
An experiment was conducted at the Embrapa -- Cassava and Tropical Fruit Crops with the aim of estimating the genotypic determination coefficient (b) of papaya for its capacity of associate and response to arbuscular mycorrhizal fungi (AMF). Four genotypes and one variety of both "Solo"and "Formosa" groups were tested, inoculated or not with Gigaspora margarita in a soil which received 30 mg dm-3 of phosphorus. Data of shoot dry weight (SDW), mycorrhizal efficiency and colonization were statistically analized to generate the coefficient. All genotypes responded significantly to AMF but plants from "Formosa" group showed lower root length; mycorrhiza efficiency and colonization were similar for both groups, but there was no correlation between these characteristics; inoculation increased P, K and Cu absorption with higher values for the variety of each group. Coefficient "b" showed that for "Formosa" group, plant breeding may modulate shoot plant production, root length, plant heigth and mycorrhizal effeciency; for "Solo"group this effect showed to be more probable for root colonization than to mycorrhizal efficiency. |
Author | MAIA, ISABEL CRISTINA SILVA TRINDADE, ALDO VILAR ALMEIDA, FLORÍCIO PINTO DE DANTAS, JORGE LUIZ LOYOLA |
Author_xml | – sequence: 1 givenname: ALDO VILAR surname: TRINDADE fullname: TRINDADE, ALDO VILAR organization: Pesquisador da Embrapa Mandioca e Fruticultura – sequence: 2 givenname: JORGE LUIZ LOYOLA surname: DANTAS fullname: DANTAS, JORGE LUIZ LOYOLA organization: Pesquisador da Embrapa Mandioca e Fruticultura – sequence: 3 givenname: FLORÍCIO PINTO DE surname: ALMEIDA fullname: ALMEIDA, FLORÍCIO PINTO DE organization: Empresa Baiana de Desenvolvimento Agrícola – sequence: 4 givenname: ISABEL CRISTINA SILVA surname: MAIA fullname: MAIA, ISABEL CRISTINA SILVA organization: Pesquisador da Embrapa Mandioca e Fruticultura |
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Cites_doi | 10.1007/BF02185031 10.1080/01904169509364963 10.1046/j.1469-8137.1997.00729.x 10.1111/j.1469-8137.1988.tb04189.x 10.1007/BF00017688 10.2307/2401670 10.4141/cjps80-125 10.1111/j.1469-8137.1993.tb03739.x 10.1007/BF00012037 10.17660/ActaHortic.1987.196.5 10.1139/b91-089 10.1111/j.1469-8137.1991.tb00001.x 10.2136/sssaj1977.03615995004100030026x 10.1146/annurev.py.11.090173.001131 |
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References | AMIJEE F. (ref2) 1993; 123 LACKIE S.M. (ref12) 1988; 108 KRISHNA K.R. (ref11) 1985; 86 MOSSE B. (ref14) 1973; 11 ONKARAYA H. (ref17) 1993; 3 BOLAN N. S. (ref3) 1987; 134 DECLERCK S. (ref4) 1995; 176 O'BANNON J. H. (ref16) 1980; 60 JOHNSON N.C. (ref8) 1997; 135 KOIDE J.T. (ref10) 1991; 117 GIACOMETTI D.C. (ref7) 1987 MANJUNATH A. (ref13) 1991; 69 TRINDADE A .V. (ref19) 1998 AMBLER J.R. (ref1) 1977; 4 GERDEMANN J. W. (ref6) 1975 NEWMAN E. I (ref15) 1966; 3 SMITH S.E. (ref18) 1993 FALCONER D.S. (ref5) 1987 KHANIZADEH S. (ref9) 1995; 18 |
References_xml | – volume: 86 start-page: 113 issn: 0032-079X issue: 1 year: 1985 ident: ref11 article-title: Genotype dependent variation in mycorrhizal colonization and response to inoculation of pearl millet publication-title: Plant and Soil doi: 10.1007/BF02185031 contributor: fullname: KRISHNA K.R. – year: 1987 ident: ref5 contributor: fullname: FALCONER D.S. – volume: 18 start-page: 1073 issue: 6 year: 1995 ident: ref9 article-title: Effects of three vesicular-arbuscular mycorrhizae species and phosphorus on reproductive and vegetative growth of three strawberry cultivars publication-title: Journal of Plant Nutrition doi: 10.1080/01904169509364963 contributor: fullname: KHANIZADEH S. – volume: 135 start-page: 575 issue: 4 year: 1997 ident: ref8 article-title: Functioning of mycorrhizal associations along the mutualism-parasitism continum publication-title: The New Phytologist doi: 10.1046/j.1469-8137.1997.00729.x contributor: fullname: JOHNSON N.C. – start-page: 575 volume-title: Vesicular-arbuscular mycorrhizae year: 1975 ident: ref6 contributor: fullname: GERDEMANN J. W. – volume: 108 start-page: 477 issue: 4 year: 1988 ident: ref12 article-title: Comparison of colonization among half-sib families of Medicago sativa L. by Glomus versiforme (Daniels and Trappe) Berch publication-title: The New Phytologist doi: 10.1111/j.1469-8137.1988.tb04189.x contributor: fullname: LACKIE S.M. – volume: 176 start-page: 183 issn: 0032-079X issue: 2 year: 1995 ident: ref4 article-title: Mycorrhizal dependency of banana (Musa acuminata, AAA group) cultivar publication-title: Plant and Soil doi: 10.1007/BF00017688 contributor: fullname: DECLERCK S. – volume: 3 start-page: 139 issn: 0021-8901 issue: 2 year: 1966 ident: ref15 article-title: A method of estimating the total length of root in a sample publication-title: Journal of Applied Ecology doi: 10.2307/2401670 contributor: fullname: NEWMAN E. I – volume: 60 start-page: 859 issn: 0008-4220 issue: 3 year: 1980 ident: ref16 article-title: Alfafa varietal response to seven isolates of vesicular-arbuscular mycorrhizal fungi publication-title: Canadian Journal of Plant Science doi: 10.4141/cjps80-125 contributor: fullname: O'BANNON J. H. – volume: 123 start-page: 297 issue: 2 year: 1993 ident: ref2 article-title: The development of endomycorhizal root systems: effects of soil phosphorus and fungal colonization on the concentration of soluble carbohydrates in roots publication-title: The New Phytologist doi: 10.1111/j.1469-8137.1993.tb03739.x contributor: fullname: AMIJEE F. – volume: 134 start-page: 189 issn: 0032-079X issue: 2 year: 1987 ident: ref3 article-title: A critical review on the role of mycorrhizal fungi in the uptake of phosphorus by plants publication-title: Plant and Soil doi: 10.1007/BF00012037 contributor: fullname: BOLAN N. S. – volume: 3 start-page: 81 issue: 1 year: 1993 ident: ref17 article-title: Studies on dependency of citrus rootstocks to VAM inoculation in Alfisol soil publication-title: Advances in Horticulture and Forestry contributor: fullname: ONKARAYA H. – year: 1998 ident: ref19 contributor: fullname: TRINDADE A .V. – start-page: 53 issue: 196 year: 1987 ident: ref7 article-title: Papaya breeding publication-title: Acta Horticulturae doi: 10.17660/ActaHortic.1987.196.5 contributor: fullname: GIACOMETTI D.C. – volume: 69 start-page: 671 issn: 0008-4026 issue: 5 year: 1991 ident: ref13 article-title: Root morphological characteristics of host species having distinct mycorrhizal dependence publication-title: Canadian Journal of Botany doi: 10.1139/b91-089 contributor: fullname: MANJUNATH A. – volume: 117 start-page: 365 issue: 3 year: 1991 ident: ref10 article-title: Nutrient supply, nutrient demand and plant response to mycorrhizal infection publication-title: The New Phytologist doi: 10.1111/j.1469-8137.1991.tb00001.x contributor: fullname: KOIDE J.T. – volume: 4 start-page: 551 issue: 3 year: 1977 ident: ref1 article-title: Techniques for determining root length infected by vesicular-arbuscular mycorrhizae publication-title: Soil Science Society of American Journal doi: 10.2136/sssaj1977.03615995004100030026x contributor: fullname: AMBLER J.R. – start-page: 221 volume-title: The involvement of mycorrhizas in assessment of genetically dependent efficiency of nutrient uptake and use year: 1993 ident: ref18 contributor: fullname: SMITH S.E. – volume: 11 start-page: 171 issn: 0066-4286 issue: 1 year: 1973 ident: ref14 article-title: Advances in the study of vesicular-arbuscular mycorrhiza publication-title: Annual Review of Phytopathology doi: 10.1146/annurev.py.11.090173.001131 contributor: fullname: MOSSE B. |
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Title | ESTIMATIVA DO COEFICIENTE DE DETERMINAÇÃO GENOTÍPICA EM MAMOEIROS (Carica papaya L.) INOCULADOS COM FUNGO MICORRÍZICO ARBUSCULAR |
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