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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte; Embrapa Semiárido. |
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Data corrente: |
05/07/1996 |
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Data da última atualização: |
06/07/2018 |
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Autoria: |
MORGADO, L. B. |
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Afiliação: |
LUIZ BALBINO MORGADO. |
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Título: |
Effect of high soil phosphorus on tissue phosphorus and zinc in diallel and test crosses of sweet corn (Zea mays L.). |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
Madison: University of Wisconsin, 1977. |
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Páginas: |
64 p. |
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Idioma: |
Inglês |
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Notas: |
M.Sc. Thesis. |
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Conteúdo: |
This research was designed to measure accumulation of tissue phosphorus and zinc in sweet corn inbreds and their hybrid progeny following high rates of phosphorus fertilization. Five lines, crossed in diallel combination including reciprocals, to give 20 hybrids, provided the genetic basis for these studies. Also a sixth line was crossed with each of the five lines to give five test crosses. Response was measured at three levels of phosphorus fertilization. Determinations were made of concentration of kernel phosphorus and zinc, and of ear leaf phosphorus and zinc 20 day after silking. Differences among inbreds were significantly different for kernel zinc. Differences among hybrids were significant for all attributes measured. In general there tended to be anincrease in tissue phosphorus concentration and a decrease in tissue zinc concentration as the rate of phosphorus application was increased, although these differences were not always statistically significant. They were significant for concentration of ear leaf zinc in the inbreds and for concentration of ear leaf phosphorus in the hybrids. General combining ability effects were highly significant for all attributes measured, indicating the importance of additive gene action. Significance of specific combining ability effects for hernel and ear leaf phosphorus and for ear leaf zinc indicated non-additive gene action although all attributes appeared to be affected to a greater extent by additive gene effects. (...). |
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Palavras-Chave: |
Fertility; Sweet corn. |
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Thesagro: |
Fertilidade; Fertilizante Fosfatado; Fósforo; Milho; Milho Doce; Solo; Zea Mays; Zinco. |
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Thesaurus Nal: |
phosphorus; soil; zinc. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02236nam a2200289 a 4500
001 1056908
005 2018-07-06
008 1977 bl uuuu m 00u1 u #d
100 1 $aMORGADO, L. B.
245 $aEffect of high soil phosphorus on tissue phosphorus and zinc in diallel and test crosses of sweet corn (Zea mays L.).
260 $aMadison: University of Wisconsin$c1977
300 $a64 p.
500 $aM.Sc. Thesis.
520 $aThis research was designed to measure accumulation of tissue phosphorus and zinc in sweet corn inbreds and their hybrid progeny following high rates of phosphorus fertilization. Five lines, crossed in diallel combination including reciprocals, to give 20 hybrids, provided the genetic basis for these studies. Also a sixth line was crossed with each of the five lines to give five test crosses. Response was measured at three levels of phosphorus fertilization. Determinations were made of concentration of kernel phosphorus and zinc, and of ear leaf phosphorus and zinc 20 day after silking. Differences among inbreds were significantly different for kernel zinc. Differences among hybrids were significant for all attributes measured. In general there tended to be anincrease in tissue phosphorus concentration and a decrease in tissue zinc concentration as the rate of phosphorus application was increased, although these differences were not always statistically significant. They were significant for concentration of ear leaf zinc in the inbreds and for concentration of ear leaf phosphorus in the hybrids. General combining ability effects were highly significant for all attributes measured, indicating the importance of additive gene action. Significance of specific combining ability effects for hernel and ear leaf phosphorus and for ear leaf zinc indicated non-additive gene action although all attributes appeared to be affected to a greater extent by additive gene effects. (...).
650 $aphosphorus
650 $asoil
650 $azinc
650 $aFertilidade
650 $aFertilizante Fosfatado
650 $aFósforo
650 $aMilho
650 $aMilho Doce
650 $aSolo
650 $aZea Mays
650 $aZinco
653 $aFertility
653 $aSweet corn
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril; Embrapa Algodão. |
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Data corrente: |
15/01/2020 |
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Data da última atualização: |
20/01/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
RODRIGUES, S. M. M.; PITTA, R. M.; SANTOS, N. C. |
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Afiliação: |
SANDRA MARIA MORAIS RODRIGUES, CNPA; RAFAEL MAJOR PITTA, CPAMT; Nubia Carmo Santos, Universidade Federal de Mato Grosso - UFMS/Instituto de Ciências Agrárias e Ambientais. |
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Título: |
Effect of the larval density of Chrysodeixis includens (LEPIDOPTERA, NOCTUIDAE) on cotton yield. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Nativa, v. 7, n. 5, p. 490-493, set./out. 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
EN-US: The cultivation of soybean near to cotton areas has favored the migration of lepidopteran pests between those crops, including the soybean looper, Chrysodeixis includens, which usually attacks soybean leaves but can also attack cotton plants. The objective of this study is to identify the density of C. includens larvae capable of decreasing cotton productivity. Six treatments (0, 2, 4, 6, 8 and 16 larvae.meter-1) with five replications were arranged in a completely randomized block design. Plants of cultivar FM 944GL at stage F2 were protected by PVC cages (length, 1.0 m; width, 1.0 m, height, 1.6 m) covered with organza fabric and infested with third-instar larvae. Crop yield and defoliation data were subjected to analysis of variance using the F-test and regression analysis. The results indicated that the presence of two third-instar larvae.m-1 did not affect cotton yield in the F2 phase whereas four or more third-instar larvae.m-1 decreased cotton yield. The rate of defoliation was 4%, 10%, 6%, 13%, and 24% in the treatments with two, four, six, eight, and sixteen larvae, respectively. | PT-BR: A existência de plantios de soja próximos aos de algodão tem favorecido a migração de espécies de lepidópteros-praga entre essas culturas, como a falsa-medideira, Chrysodeixis includens, praga desfolhadora da soja, mas que está atacando o algodoeiro. O objetivo deste trabalho foi identificar qual a densidade de lagartas de C. includens que causa redução na produtividade do algodoeiro. O delineamento foi em blocos ao acaso com seis tratamentos (0, 2, 4, 6, 8 e 16 lagartas.metro-1) e cinco repetições. As plantas da cultivar FM 944GL, no estádio F2, foram infestadas com lagartas em terceiro instar, protegidas por gaiola de PVC (1,0 m x 1,0 m x 1,6 m (C x L x H)) revestida com organza. Os dados de produção e desfolha foram submetidos à análise de variância pelo teste F e análise de regressão. De acordo com os resultados constatou-se que a presença de duas lagartas.m-1, de terceiro instar, de C. includens não afetou a produtividade do algodoeiro na fase F2; e a partir de quatro lagartas.m-1 de terceiro instar houve redução na produtividade do algodoeiro. Nos tratamentos com duas, quatro, seis, oito e dezesseis lagartas a desfolha foi de 4%, 10%, 6%, 13% e 24%, respectivamente. MenosEN-US: The cultivation of soybean near to cotton areas has favored the migration of lepidopteran pests between those crops, including the soybean looper, Chrysodeixis includens, which usually attacks soybean leaves but can also attack cotton plants. The objective of this study is to identify the density of C. includens larvae capable of decreasing cotton productivity. Six treatments (0, 2, 4, 6, 8 and 16 larvae.meter-1) with five replications were arranged in a completely randomized block design. Plants of cultivar FM 944GL at stage F2 were protected by PVC cages (length, 1.0 m; width, 1.0 m, height, 1.6 m) covered with organza fabric and infested with third-instar larvae. Crop yield and defoliation data were subjected to analysis of variance using the F-test and regression analysis. The results indicated that the presence of two third-instar larvae.m-1 did not affect cotton yield in the F2 phase whereas four or more third-instar larvae.m-1 decreased cotton yield. The rate of defoliation was 4%, 10%, 6%, 13%, and 24% in the treatments with two, four, six, eight, and sixteen larvae, respectively. | PT-BR: A existência de plantios de soja próximos aos de algodão tem favorecido a migração de espécies de lepidópteros-praga entre essas culturas, como a falsa-medideira, Chrysodeixis includens, praga desfolhadora da soja, mas que está atacando o algodoeiro. O objetivo deste trabalho foi identificar qual a densidade de lagartas de C. includens que causa redução na produtividade do a... Mostrar Tudo |
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Palavras-Chave: |
Falsa-medideira; Herbivoria; Herbivory; Management; Soybean looper. |
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Thesagro: |
Gossypium Hirsutum; Manejo. |
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Thesaurus NAL: |
Herbivores; Pseudoplusia includens virus. |
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Categoria do assunto: |
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O Insetos e Entomologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208796/1/Effect-of-the-larval-density.pdf
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Marc: |
LEADER 03064naa a2200253 a 4500
001 2118778
005 2020-01-20
008 2019 bl uuuu u00u1 u #d
100 1 $aRODRIGUES, S. M. M.
245 $aEffect of the larval density of Chrysodeixis includens (LEPIDOPTERA, NOCTUIDAE) on cotton yield.$h[electronic resource]
260 $c2019
520 $aEN-US: The cultivation of soybean near to cotton areas has favored the migration of lepidopteran pests between those crops, including the soybean looper, Chrysodeixis includens, which usually attacks soybean leaves but can also attack cotton plants. The objective of this study is to identify the density of C. includens larvae capable of decreasing cotton productivity. Six treatments (0, 2, 4, 6, 8 and 16 larvae.meter-1) with five replications were arranged in a completely randomized block design. Plants of cultivar FM 944GL at stage F2 were protected by PVC cages (length, 1.0 m; width, 1.0 m, height, 1.6 m) covered with organza fabric and infested with third-instar larvae. Crop yield and defoliation data were subjected to analysis of variance using the F-test and regression analysis. The results indicated that the presence of two third-instar larvae.m-1 did not affect cotton yield in the F2 phase whereas four or more third-instar larvae.m-1 decreased cotton yield. The rate of defoliation was 4%, 10%, 6%, 13%, and 24% in the treatments with two, four, six, eight, and sixteen larvae, respectively. | PT-BR: A existência de plantios de soja próximos aos de algodão tem favorecido a migração de espécies de lepidópteros-praga entre essas culturas, como a falsa-medideira, Chrysodeixis includens, praga desfolhadora da soja, mas que está atacando o algodoeiro. O objetivo deste trabalho foi identificar qual a densidade de lagartas de C. includens que causa redução na produtividade do algodoeiro. O delineamento foi em blocos ao acaso com seis tratamentos (0, 2, 4, 6, 8 e 16 lagartas.metro-1) e cinco repetições. As plantas da cultivar FM 944GL, no estádio F2, foram infestadas com lagartas em terceiro instar, protegidas por gaiola de PVC (1,0 m x 1,0 m x 1,6 m (C x L x H)) revestida com organza. Os dados de produção e desfolha foram submetidos à análise de variância pelo teste F e análise de regressão. De acordo com os resultados constatou-se que a presença de duas lagartas.m-1, de terceiro instar, de C. includens não afetou a produtividade do algodoeiro na fase F2; e a partir de quatro lagartas.m-1 de terceiro instar houve redução na produtividade do algodoeiro. Nos tratamentos com duas, quatro, seis, oito e dezesseis lagartas a desfolha foi de 4%, 10%, 6%, 13% e 24%, respectivamente.
650 $aHerbivores
650 $aPseudoplusia includens virus
650 $aGossypium Hirsutum
650 $aManejo
653 $aFalsa-medideira
653 $aHerbivoria
653 $aHerbivory
653 $aManagement
653 $aSoybean looper
700 1 $aPITTA, R. M.
700 1 $aSANTOS, N. C.
773 $tNativa$gv. 7, n. 5, p. 490-493, set./out. 2019.
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Embrapa Algodão (CNPA) |
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