Efeitos do cádmio no arroz (Oryza sativa L.) e no feijoeiro (Phaseolus vulgaris L.) cultivados em soluções nutritivas
Autor(a) principal: | |
---|---|
Data de Publicação: | 1989 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da USP |
Texto Completo: | https://teses.usp.br/teses/disponiveis/11/11140/tde-20191108-114000/ |
Resumo: | Several experiments were carried out in order to study the effects of Cd supply on growth, symptomatology, and mineral composition of rice ( Oryza sativa L., cv IAC 4440) and bean ( Phaseolus vulgaris L., cv Carioca 80) plants. Cd was supplied at the levels of 0.00, 0.05, 0.50 and 5.00 ppm for rice and 0.0000, 0.0025, 0.0050, 0.0500, and 0.5000 for the bean plants, based on preliminar experiments. Rice plants were collected for growth and mineral analysis at maximum tillering and panicle formation, whereas bean plants were harvested both at flowering and pod formation. Chief conclusions are as follows: 1) Increasing levels of Cd in the nutrient solution affected the growth both of tops and roots. 2) The most conspicuous symptom of toxicity was the presence of reddish brown specks on leaves, petioles and stems of the bean plant, and on rice leaves. 3) Cd concentrations lower or equal to 0.05 ppm had a beneficiaI effect on the growth of rice, as well as on the content of all nutrients which were analysed (N, P, K, Ca, Mg, Cu, Fe, Mn, Zn). Higher concentrations, however, had the opposite effect on mineral composition, exception made for the elements Cu, Fe, and Mn. 4) In a genera1 way, Cd had a depressive effect on the growth of bean plants, as well as in the accumulation of N, K, Ca, Mg and Zn. 5) The largest proportion of Cd taken up by both species was concentrated in the root system. 6) Relatively speaking, a more pronounced inhibition on the long distance transport of Cd was observed in beans. 7) Bean plants were much more sensitive to Cd toxicity than rice. |
id |
USP_2b5ae56182d60f9ee7ad402e6312fe44 |
---|---|
oai_identifier_str |
oai:teses.usp.br:tde-20191108-114000 |
network_acronym_str |
USP |
network_name_str |
Biblioteca Digital de Teses e Dissertações da USP |
repository_id_str |
2721 |
spelling |
Efeitos do cádmio no arroz (Oryza sativa L.) e no feijoeiro (Phaseolus vulgaris L.) cultivados em soluções nutritivasEffects of cadmium on rice ( Oryza sativa L.) and bean ( Phaseolus vulgaris L.) grown in nutrient solutionsARROZCÁDMIOCOMPOSIÇÃO MINERALCRESCIMENTOFEIJÃOSOLUÇÃO NUTRITIVASeveral experiments were carried out in order to study the effects of Cd supply on growth, symptomatology, and mineral composition of rice ( Oryza sativa L., cv IAC 4440) and bean ( Phaseolus vulgaris L., cv Carioca 80) plants. Cd was supplied at the levels of 0.00, 0.05, 0.50 and 5.00 ppm for rice and 0.0000, 0.0025, 0.0050, 0.0500, and 0.5000 for the bean plants, based on preliminar experiments. Rice plants were collected for growth and mineral analysis at maximum tillering and panicle formation, whereas bean plants were harvested both at flowering and pod formation. Chief conclusions are as follows: 1) Increasing levels of Cd in the nutrient solution affected the growth both of tops and roots. 2) The most conspicuous symptom of toxicity was the presence of reddish brown specks on leaves, petioles and stems of the bean plant, and on rice leaves. 3) Cd concentrations lower or equal to 0.05 ppm had a beneficiaI effect on the growth of rice, as well as on the content of all nutrients which were analysed (N, P, K, Ca, Mg, Cu, Fe, Mn, Zn). Higher concentrations, however, had the opposite effect on mineral composition, exception made for the elements Cu, Fe, and Mn. 4) In a genera1 way, Cd had a depressive effect on the growth of bean plants, as well as in the accumulation of N, K, Ca, Mg and Zn. 5) The largest proportion of Cd taken up by both species was concentrated in the root system. 6) Relatively speaking, a more pronounced inhibition on the long distance transport of Cd was observed in beans. 7) Bean plants were much more sensitive to Cd toxicity than rice.Several experiments were carried out in order to study the effects of Cd supply on growth, symptomatology, and mineral composition of rice ( Oryza sativa L., cv IAC 4440) and bean ( Phaseolus vulgaris L., cv Carioca 80) plants. Cd was supplied at the levels of 0.00, 0.05, 0.50 and 5.00 ppm for rice and 0.0000, 0.0025, 0.0050, 0.0500, and 0.5000 for the bean plants, based on preliminar experiments. Rice plants were collected for growth and mineral analysis at maximum tillering and panicle formation, whereas bean plants were harvested both at flowering and pod formation. Chief conclusions are as follows: 1) Increasing levels of Cd in the nutrient solution affected the growth both of tops and roots. 2) The most conspicuous symptom of toxicity was the presence of reddish brown specks on leaves, petioles and stems of the bean plant, and on rice leaves. 3) Cd concentrations lower or equal to 0.05 ppm had a beneficiaI effect on the growth of rice, as well as on the content of all nutrients which were analysed (N, P, K, Ca, Mg, Cu, Fe, Mn, Zn). Higher concentrations, however, had the opposite effect on mineral composition, exception made for the elements Cu, Fe, and Mn. 4) In a genera1 way, Cd had a depressive effect on the growth of bean plants, as well as in the accumulation of N, K, Ca, Mg and Zn. 5) The largest proportion of Cd taken up by both species was concentrated in the root system. 6) Relatively speaking, a more pronounced inhibition on the long distance transport of Cd was observed in beans. 7) Bean plants were much more sensitive to Cd toxicity than rice.Biblioteca Digitais de Teses e Dissertações da USPMalavolta, E.Gaona Jurado, Santiago1989-05-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttps://teses.usp.br/teses/disponiveis/11/11140/tde-20191108-114000/reponame:Biblioteca Digital de Teses e Dissertações da USPinstname:Universidade de São Paulo (USP)instacron:USPLiberar o conteúdo para acesso público.info:eu-repo/semantics/openAccesspor2019-11-08T23:45:07Zoai:teses.usp.br:tde-20191108-114000Biblioteca Digital de Teses e Dissertaçõeshttp://www.teses.usp.br/PUBhttp://www.teses.usp.br/cgi-bin/mtd2br.plvirginia@if.usp.br|| atendimento@aguia.usp.br||virginia@if.usp.bropendoar:27212019-11-08T23:45:07Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Efeitos do cádmio no arroz (Oryza sativa L.) e no feijoeiro (Phaseolus vulgaris L.) cultivados em soluções nutritivas Effects of cadmium on rice ( Oryza sativa L.) and bean ( Phaseolus vulgaris L.) grown in nutrient solutions |
title |
Efeitos do cádmio no arroz (Oryza sativa L.) e no feijoeiro (Phaseolus vulgaris L.) cultivados em soluções nutritivas |
spellingShingle |
Efeitos do cádmio no arroz (Oryza sativa L.) e no feijoeiro (Phaseolus vulgaris L.) cultivados em soluções nutritivas Gaona Jurado, Santiago ARROZ CÁDMIO COMPOSIÇÃO MINERAL CRESCIMENTO FEIJÃO SOLUÇÃO NUTRITIVA |
title_short |
Efeitos do cádmio no arroz (Oryza sativa L.) e no feijoeiro (Phaseolus vulgaris L.) cultivados em soluções nutritivas |
title_full |
Efeitos do cádmio no arroz (Oryza sativa L.) e no feijoeiro (Phaseolus vulgaris L.) cultivados em soluções nutritivas |
title_fullStr |
Efeitos do cádmio no arroz (Oryza sativa L.) e no feijoeiro (Phaseolus vulgaris L.) cultivados em soluções nutritivas |
title_full_unstemmed |
Efeitos do cádmio no arroz (Oryza sativa L.) e no feijoeiro (Phaseolus vulgaris L.) cultivados em soluções nutritivas |
title_sort |
Efeitos do cádmio no arroz (Oryza sativa L.) e no feijoeiro (Phaseolus vulgaris L.) cultivados em soluções nutritivas |
author |
Gaona Jurado, Santiago |
author_facet |
Gaona Jurado, Santiago |
author_role |
author |
dc.contributor.none.fl_str_mv |
Malavolta, E. |
dc.contributor.author.fl_str_mv |
Gaona Jurado, Santiago |
dc.subject.por.fl_str_mv |
ARROZ CÁDMIO COMPOSIÇÃO MINERAL CRESCIMENTO FEIJÃO SOLUÇÃO NUTRITIVA |
topic |
ARROZ CÁDMIO COMPOSIÇÃO MINERAL CRESCIMENTO FEIJÃO SOLUÇÃO NUTRITIVA |
description |
Several experiments were carried out in order to study the effects of Cd supply on growth, symptomatology, and mineral composition of rice ( Oryza sativa L., cv IAC 4440) and bean ( Phaseolus vulgaris L., cv Carioca 80) plants. Cd was supplied at the levels of 0.00, 0.05, 0.50 and 5.00 ppm for rice and 0.0000, 0.0025, 0.0050, 0.0500, and 0.5000 for the bean plants, based on preliminar experiments. Rice plants were collected for growth and mineral analysis at maximum tillering and panicle formation, whereas bean plants were harvested both at flowering and pod formation. Chief conclusions are as follows: 1) Increasing levels of Cd in the nutrient solution affected the growth both of tops and roots. 2) The most conspicuous symptom of toxicity was the presence of reddish brown specks on leaves, petioles and stems of the bean plant, and on rice leaves. 3) Cd concentrations lower or equal to 0.05 ppm had a beneficiaI effect on the growth of rice, as well as on the content of all nutrients which were analysed (N, P, K, Ca, Mg, Cu, Fe, Mn, Zn). Higher concentrations, however, had the opposite effect on mineral composition, exception made for the elements Cu, Fe, and Mn. 4) In a genera1 way, Cd had a depressive effect on the growth of bean plants, as well as in the accumulation of N, K, Ca, Mg and Zn. 5) The largest proportion of Cd taken up by both species was concentrated in the root system. 6) Relatively speaking, a more pronounced inhibition on the long distance transport of Cd was observed in beans. 7) Bean plants were much more sensitive to Cd toxicity than rice. |
publishDate |
1989 |
dc.date.none.fl_str_mv |
1989-05-03 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://teses.usp.br/teses/disponiveis/11/11140/tde-20191108-114000/ |
url |
https://teses.usp.br/teses/disponiveis/11/11140/tde-20191108-114000/ |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
|
dc.rights.driver.fl_str_mv |
Liberar o conteúdo para acesso público. info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Liberar o conteúdo para acesso público. |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
|
dc.publisher.none.fl_str_mv |
Biblioteca Digitais de Teses e Dissertações da USP |
publisher.none.fl_str_mv |
Biblioteca Digitais de Teses e Dissertações da USP |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações da USP instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Biblioteca Digital de Teses e Dissertações da USP |
collection |
Biblioteca Digital de Teses e Dissertações da USP |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações da USP - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
virginia@if.usp.br|| atendimento@aguia.usp.br||virginia@if.usp.br |
_version_ |
1809090912176832512 |