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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
21/09/1995 |
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Data da última atualização: |
21/09/1995 |
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Autoria: |
WEIR, R. G.; LETHAM, D. B.; BROADBENT, P.; NICHOLLS, P. J. |
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Afiliação: |
Biological and Chemical Research Institute, NSW Department of Agriculture, Rydalmere, NSW 2116, Australia. |
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Título: |
The effect of phosphorus and vesicular-arbuscular mycorrhizal development on growth of citrus in a sandmount series soil. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Proc. Int. Soc. Citriculture, p.288-292, 1978. |
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Idioma: |
Inglês |
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Conteúdo: |
The death of seedlings of Citrus jambhiri grown from seed in steam-air treated (60grausC/30 min) or unheated Sandmount sand decreased with increasing phosphorus rate from 21.9% at O microg P/g soil to 3.1% at 42 nicrog P/g soil. Seedling growth increased with each phosphorus increment in both heated and unheated soil. Growth in unheated soil was much greater than in heated soil at low phosphorus rates, but not at the highest rate. The relative response to phosphorus was 20-fold in heated soil and 6-fold in unheated soil. Growth in the unhated soil was positively correlated with the percentage of vesicular-arbuscular mycorrhizal infection (mean 76%) while infection was absent in roots from heated soil. Fumigation of Sandmount sand with chloropicrin, Di-Trapex or Basamid reduced growth and mycorrhizal infection. Root samples from 5-year-old stunted and normal Valencia trees, growing on a range of rootstocks in Sandmount sand in an orchard irrigated using the drag hose system, showed stunted trees had on average only half the mycorrhizal infection of normal trees. In comparison, trees grown with trickle irrigation were all normal and had high levels of mycorrhizal infection. |
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Palavras-Chave: |
Citros; Citrus spp. |
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Thesagro: |
Citrus Sinensis; Irrigação; Poncirus Trifoliata. |
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Thesaurus Nal: |
Citrus jambhiri. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01850naa a2200229 a 4500
001 1647168
005 1995-09-21
008 1978 bl --- 0-- u #d
100 1 $aWEIR, R. G.
245 $aThe effect of phosphorus and vesicular-arbuscular mycorrhizal development on growth of citrus in a sandmount series soil.
260 $c1978
520 $aThe death of seedlings of Citrus jambhiri grown from seed in steam-air treated (60grausC/30 min) or unheated Sandmount sand decreased with increasing phosphorus rate from 21.9% at O microg P/g soil to 3.1% at 42 nicrog P/g soil. Seedling growth increased with each phosphorus increment in both heated and unheated soil. Growth in unheated soil was much greater than in heated soil at low phosphorus rates, but not at the highest rate. The relative response to phosphorus was 20-fold in heated soil and 6-fold in unheated soil. Growth in the unhated soil was positively correlated with the percentage of vesicular-arbuscular mycorrhizal infection (mean 76%) while infection was absent in roots from heated soil. Fumigation of Sandmount sand with chloropicrin, Di-Trapex or Basamid reduced growth and mycorrhizal infection. Root samples from 5-year-old stunted and normal Valencia trees, growing on a range of rootstocks in Sandmount sand in an orchard irrigated using the drag hose system, showed stunted trees had on average only half the mycorrhizal infection of normal trees. In comparison, trees grown with trickle irrigation were all normal and had high levels of mycorrhizal infection.
650 $aCitrus jambhiri
650 $aCitrus Sinensis
650 $aIrrigação
650 $aPoncirus Trifoliata
653 $aCitros
653 $aCitrus spp
700 1 $aLETHAM, D. B.
700 1 $aBROADBENT, P.
700 1 $aNICHOLLS, P. J.
773 $tProc. Int. Soc. Citriculture, p.288-292, 1978.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
16/02/2009 |
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Data da última atualização: |
27/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
SAGRILO, E.; VIDIGAL FILHO, P. S.; PEQUENO, M. G.; VIDIGAL, M. C. G.; KVITSCHAL, M. V. |
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Afiliação: |
Edvaldo Sagrilo, Embrapa Meio-Norte; Pedro Soares Vidigal Filho, Universidade Estadual de Maringá; Manoel Genildo Pequeno, Universidade Estadual de Maringá; Maria Celeste Gonçalves-Vidigal, Universidade Estadual de Maringá; Marcus Vinícius Kvitschal, Universidade Estadual de Maringá. |
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Título: |
Dry matter production and distribution in three cassava (Manihot esculenta Crantz) cultivars during the second vegetative plant cycle. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Brazilian Archives of Biology and Technology, Curitiba, v. 51, n. 6, p. 1079-1087, nov./dec. 2008. |
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ISSN: |
1516-8913 |
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Idioma: |
Inglês |
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Conteúdo: |
A study was carried out in Araruna County, State of Paraná, to understand the relationship between the total dry matter yield and its proportion allocated to the storage roots of cassava (Manihot esculenta Crantz) plants in the second vegetative cycle. The experimental design was a randomized complete block in split-plot scheme with four replications. The plots consisted of the Mico, IAC 13 and IAC 14 cultivars and the monthly harvesting dates were assessed in the sub-plots. The results showed that the Mico and IAC 13 cultivars were more efficient in allocating dry matter to the storage roots. The IAC 14 cultivar allocated a higher proportion of assimilates to stems compared with the other two cultivars. With regard to the influence of harvesting time, the lowest harvest indexes were observed in the periods of more intense vegetative growth. However, the highest carbohydrate proportions were allocated to the storage roots during periods of low vegetative growth. |
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Palavras-Chave: |
Dry matter allocation; Harvesting time. |
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Thesaurus NAL: |
harvest index. |
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Categoria do assunto: |
-- |
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URL: |
https://www.scielo.br/pdf/babt/v51n6/01.pdf
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Marc: |
LEADER 01692naa a2200217 a 4500
001 1070513
005 2022-06-27
008 2008 bl uuuu u00u1 u #d
022 $a1516-8913
100 1 $aSAGRILO, E.
245 $aDry matter production and distribution in three cassava (Manihot esculenta Crantz) cultivars during the second vegetative plant cycle.
260 $c2008
520 $aA study was carried out in Araruna County, State of Paraná, to understand the relationship between the total dry matter yield and its proportion allocated to the storage roots of cassava (Manihot esculenta Crantz) plants in the second vegetative cycle. The experimental design was a randomized complete block in split-plot scheme with four replications. The plots consisted of the Mico, IAC 13 and IAC 14 cultivars and the monthly harvesting dates were assessed in the sub-plots. The results showed that the Mico and IAC 13 cultivars were more efficient in allocating dry matter to the storage roots. The IAC 14 cultivar allocated a higher proportion of assimilates to stems compared with the other two cultivars. With regard to the influence of harvesting time, the lowest harvest indexes were observed in the periods of more intense vegetative growth. However, the highest carbohydrate proportions were allocated to the storage roots during periods of low vegetative growth.
650 $aharvest index
653 $aDry matter allocation
653 $aHarvesting time
700 1 $aVIDIGAL FILHO, P. S.
700 1 $aPEQUENO, M. G.
700 1 $aVIDIGAL, M. C. G.
700 1 $aKVITSCHAL, M. V.
773 $tBrazilian Archives of Biology and Technology, Curitiba$gv. 51, n. 6, p. 1079-1087, nov./dec. 2008.
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Embrapa Meio-Norte (CPAMN) |
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