Ctenarytaina spatulata, Taylor: soil water, mineral nutrients and their relations to eucalyptus dieback
Autor(a) principal: | |
---|---|
Data de Publicação: | 2003 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Florestal Brasileira (Online) |
Texto Completo: | https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1618 |
Resumo: | To develop this study it was used Eucalyptus grandis seedlings planted in three-liter pots, filled with soil collected on areas where dieback occurred (Arapoti, PR). The experiment consisted of six soil water level treatments, with and without insects. The experimental design was randomized blocks with 6 replications, arranged in six cages inside a green house. Three cages received insects and other three, not. The experiment consisted of the following treatments: 1. Sat. - soil water content maintained on the saturated conditions; 2. CC – soil water content maintained on field capacity; 3. 60 - humidity of the soil to 60% of the field capacity; 4. 30 - humidity of the soil to 30% of the field capacity; 5. A7 – soil water content maintained 7 days on the saturated condition and 7 days on 60% of the field capacity; 6. A15 - being 15 days in the saturation point and 15 days 30%da field capacity. The biomass accumulation (leaf, stem, branches and total), increased with the increase of the water supply on the soil. Same behavior was observed for the insect population. Plants infested with Ctenarytaina spatulata Taylor, 1997 presented a smaller biomass accumulation on average, except for the treatment with water stress alternation. The largest seedling growth and leaf production induced the dilution effect of some nutrients. The water stress, decreasing water supply did not enhance the C. spatulata Taylor, 1997 population growth. Even on presence of large N contents, due to the nutrient concentration effect for the smallest growth, possibly there was a decrease of the amount of appropriate insect food. |
id |
EMBRAPA-5_69b48505776ed0c77ca50583aad2d2aa |
---|---|
oai_identifier_str |
oai:pfb.cnpf.embrapa.br/pfb:article/1618 |
network_acronym_str |
EMBRAPA-5 |
network_name_str |
Pesquisa Florestal Brasileira (Online) |
repository_id_str |
|
spelling |
Ctenarytaina spatulata, Taylor: soil water, mineral nutrients and their relations to eucalyptus diebackCtenarytaina spatulata, Taylor: água no solo, nutrientes minerais e suas interações com a seca dos ponteiros do eucaliptoEstresse hídricoPragas do eucaliptoPsyllidaeEntomologiaWater stressDiebackEucalyptus pestsPsyllidaeTo develop this study it was used Eucalyptus grandis seedlings planted in three-liter pots, filled with soil collected on areas where dieback occurred (Arapoti, PR). The experiment consisted of six soil water level treatments, with and without insects. The experimental design was randomized blocks with 6 replications, arranged in six cages inside a green house. Three cages received insects and other three, not. The experiment consisted of the following treatments: 1. Sat. - soil water content maintained on the saturated conditions; 2. CC – soil water content maintained on field capacity; 3. 60 - humidity of the soil to 60% of the field capacity; 4. 30 - humidity of the soil to 30% of the field capacity; 5. A7 – soil water content maintained 7 days on the saturated condition and 7 days on 60% of the field capacity; 6. A15 - being 15 days in the saturation point and 15 days 30%da field capacity. The biomass accumulation (leaf, stem, branches and total), increased with the increase of the water supply on the soil. Same behavior was observed for the insect population. Plants infested with Ctenarytaina spatulata Taylor, 1997 presented a smaller biomass accumulation on average, except for the treatment with water stress alternation. The largest seedling growth and leaf production induced the dilution effect of some nutrients. The water stress, decreasing water supply did not enhance the C. spatulata Taylor, 1997 population growth. Even on presence of large N contents, due to the nutrient concentration effect for the smallest growth, possibly there was a decrease of the amount of appropriate insect food.Para o desenvolvimento deste trabalho foram utilizadas mudas de Eucalyptus grandis (Hill., ex-Maiden), plantadas em vasos de três litros, preenchidos com terra proveniente de um dos locais de ocorrência de seca dos ponteiros (Arapoti, PR). O experimento constou de seis tratamentos com variação do teor de umidade do solo, com e sem insetos, em parcelas de seis plantas, distribuídas em seis gaiolas em casa de vegetação. Três gaiolas receberam insetos e outras três, não. O experimento constou dos seguintes tratamentos: 1. PS – umidade do solo mantida no ponto de saturação; 2. CC – umidade do solo mantida na capacidade de campo; 3. 60 - umidade do solo a 60% da capacidade de campo; 4. 30 – umidade do solo a 30% da capacidade de campo; 5. A7 – alternância da umidade do solo, sendo 7 dias no ponto de saturação e 7 dias a 60% da capacidade de campo; 6. A15 – alternância de umidade do solo, sendo 15 dias no ponto de saturação e 15 dias a 30% da capacidade de campo. O acúmulo de biomassa na folha, caule, ramos e total, foi mais alto nos tratamentos com maior suprimento de água. A população de insetos também foi maior nestes tratamentos. Plantas infestadas com Ctenarytaina spatulata Taylor, 1997 apresentaram em média um menor acúmulo de biomassa, exceto para o tratamento com alternância de estresse hídrico. Um maior crescimento e produção de folhas provocaram diluição de alguns nutrientes. O estresse simplesmente pela diminuição do suprimento de água não favoreceu a população de C. spatulata, pois apesar de apresentar maiores teores de N devido ao efeito de concentração de nutrientes, pelo menor crescimento, possivelmente houve uma diminuição da quantidade de alimento adequado ao inseto.Embrapa Florestas2003-06-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1618Pesquisa Florestal Brasileira; n. 46 (2003): jan./jun.; 57-67Pesquisa Florestal Brasileira; No. 46 (2003): jan./jun.; 57-671983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1618/626Santana, Dalva Luiz de QueirozBellote, Antonio Francisco JuradoDedecek, Renato Antonioinfo:eu-repo/semantics/openAccess2018-03-22T17:49:20Zoai:pfb.cnpf.embrapa.br/pfb:article/1618Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2018-03-22T17:49:20Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Ctenarytaina spatulata, Taylor: soil water, mineral nutrients and their relations to eucalyptus dieback Ctenarytaina spatulata, Taylor: água no solo, nutrientes minerais e suas interações com a seca dos ponteiros do eucalipto |
title |
Ctenarytaina spatulata, Taylor: soil water, mineral nutrients and their relations to eucalyptus dieback |
spellingShingle |
Ctenarytaina spatulata, Taylor: soil water, mineral nutrients and their relations to eucalyptus dieback Santana, Dalva Luiz de Queiroz Estresse hídrico Pragas do eucalipto Psyllidae Entomologia Water stress Dieback Eucalyptus pests Psyllidae |
title_short |
Ctenarytaina spatulata, Taylor: soil water, mineral nutrients and their relations to eucalyptus dieback |
title_full |
Ctenarytaina spatulata, Taylor: soil water, mineral nutrients and their relations to eucalyptus dieback |
title_fullStr |
Ctenarytaina spatulata, Taylor: soil water, mineral nutrients and their relations to eucalyptus dieback |
title_full_unstemmed |
Ctenarytaina spatulata, Taylor: soil water, mineral nutrients and their relations to eucalyptus dieback |
title_sort |
Ctenarytaina spatulata, Taylor: soil water, mineral nutrients and their relations to eucalyptus dieback |
author |
Santana, Dalva Luiz de Queiroz |
author_facet |
Santana, Dalva Luiz de Queiroz Bellote, Antonio Francisco Jurado Dedecek, Renato Antonio |
author_role |
author |
author2 |
Bellote, Antonio Francisco Jurado Dedecek, Renato Antonio |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Santana, Dalva Luiz de Queiroz Bellote, Antonio Francisco Jurado Dedecek, Renato Antonio |
dc.subject.por.fl_str_mv |
Estresse hídrico Pragas do eucalipto Psyllidae Entomologia Water stress Dieback Eucalyptus pests Psyllidae |
topic |
Estresse hídrico Pragas do eucalipto Psyllidae Entomologia Water stress Dieback Eucalyptus pests Psyllidae |
description |
To develop this study it was used Eucalyptus grandis seedlings planted in three-liter pots, filled with soil collected on areas where dieback occurred (Arapoti, PR). The experiment consisted of six soil water level treatments, with and without insects. The experimental design was randomized blocks with 6 replications, arranged in six cages inside a green house. Three cages received insects and other three, not. The experiment consisted of the following treatments: 1. Sat. - soil water content maintained on the saturated conditions; 2. CC – soil water content maintained on field capacity; 3. 60 - humidity of the soil to 60% of the field capacity; 4. 30 - humidity of the soil to 30% of the field capacity; 5. A7 – soil water content maintained 7 days on the saturated condition and 7 days on 60% of the field capacity; 6. A15 - being 15 days in the saturation point and 15 days 30%da field capacity. The biomass accumulation (leaf, stem, branches and total), increased with the increase of the water supply on the soil. Same behavior was observed for the insect population. Plants infested with Ctenarytaina spatulata Taylor, 1997 presented a smaller biomass accumulation on average, except for the treatment with water stress alternation. The largest seedling growth and leaf production induced the dilution effect of some nutrients. The water stress, decreasing water supply did not enhance the C. spatulata Taylor, 1997 population growth. Even on presence of large N contents, due to the nutrient concentration effect for the smallest growth, possibly there was a decrease of the amount of appropriate insect food. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-06-30 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1618 |
url |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1618 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1618/626 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Embrapa Florestas |
publisher.none.fl_str_mv |
Embrapa Florestas |
dc.source.none.fl_str_mv |
Pesquisa Florestal Brasileira; n. 46 (2003): jan./jun.; 57-67 Pesquisa Florestal Brasileira; No. 46 (2003): jan./jun.; 57-67 1983-2605 1809-3647 reponame:Pesquisa Florestal Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Florestal Brasileira (Online) |
collection |
Pesquisa Florestal Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br |
_version_ |
1783370936742838272 |