Allelopathy by extracts of Caatinga species on melon seeds
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19827 |
Resumo: | The melon crop is of great socioeconomic importance in Brazil and some species from the Caatinga biome show allelopathic effects on other species. The aim of this study was to assess leaf and seed extracts of cumaru (Amburana cearensis (Allemao) A.C. Sm.), the jujube tree (Zizyphus joazeiro Mart.), Jucá (Caesalpinia ferrea Mart. Ex. Tul. Var. Ferrea) and mulungu (Erythrina velutina Willd.) on the emergence of melon seeds (Cucumis melo L.). Leaves and seeds were used to produce extracts for each species at concentrations of a) 1%, b) 0.5% c) 0.25%, d) 0.125% and e) 0% (control). The experiment was conducted with each extract type and its respective concentrations in a completely randomized design, with four replicates, each of 20 seeds. The percentage emergence and rate index, percentage of abnormal seedlings, seedling dry matter and seedling shoot and root length were assessed. Seed extracts of A. cearensis prevented melon germination, whereas the other extracts had no effect on this variable. Leaf extracts of A. cearensis and leaf and seed extracts of Z. joazeiro, C. ferrea and E. velutina resulted in abnormal melon seedlings. The percentage of abnormal melon seedlings exceeded 30% when treated with C. ferrea seed extract at the highest concentration. Most extracts did not affect seedling dry matter, but E. velutina leaf and seed extract increased the dry matter accumulation of melon seedlings and Z. joazeiro seed extract decreased dry matter accumulation at a concentration of 0.25%. The highest concentrations of mulungu and jucá leaf extracts promoted the shoot growth of melon seedlings. The extract from E. velutina seeds negatively affected root length compared to the control, similar to the effect of C. ferrea and E. velutina leaf extracts at the highest concentrations. Extracts of different organs of Caatinga plants can affect the emergence and characteristics related to seedling growth, depending on the concentration. Most extracts did not affect germination or the emergence rate index, but affected seedling growth. |
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Allelopathy by extracts of Caatinga species on melon seedsAlelopatia de extratos de espécies da caatinga sobre sementes de meloeiroCucumis melo L.Amburana cearensisZiziphus joazeiroCaesalpinia férreaErythrina velutina.Cucumis melo L.Amburana cearensisZiziphus joazeiroCaesalpinia férreaErythrina velutina.The melon crop is of great socioeconomic importance in Brazil and some species from the Caatinga biome show allelopathic effects on other species. The aim of this study was to assess leaf and seed extracts of cumaru (Amburana cearensis (Allemao) A.C. Sm.), the jujube tree (Zizyphus joazeiro Mart.), Jucá (Caesalpinia ferrea Mart. Ex. Tul. Var. Ferrea) and mulungu (Erythrina velutina Willd.) on the emergence of melon seeds (Cucumis melo L.). Leaves and seeds were used to produce extracts for each species at concentrations of a) 1%, b) 0.5% c) 0.25%, d) 0.125% and e) 0% (control). The experiment was conducted with each extract type and its respective concentrations in a completely randomized design, with four replicates, each of 20 seeds. The percentage emergence and rate index, percentage of abnormal seedlings, seedling dry matter and seedling shoot and root length were assessed. Seed extracts of A. cearensis prevented melon germination, whereas the other extracts had no effect on this variable. Leaf extracts of A. cearensis and leaf and seed extracts of Z. joazeiro, C. ferrea and E. velutina resulted in abnormal melon seedlings. The percentage of abnormal melon seedlings exceeded 30% when treated with C. ferrea seed extract at the highest concentration. Most extracts did not affect seedling dry matter, but E. velutina leaf and seed extract increased the dry matter accumulation of melon seedlings and Z. joazeiro seed extract decreased dry matter accumulation at a concentration of 0.25%. The highest concentrations of mulungu and jucá leaf extracts promoted the shoot growth of melon seedlings. The extract from E. velutina seeds negatively affected root length compared to the control, similar to the effect of C. ferrea and E. velutina leaf extracts at the highest concentrations. Extracts of different organs of Caatinga plants can affect the emergence and characteristics related to seedling growth, depending on the concentration. Most extracts did not affect germination or the emergence rate index, but affected seedling growth.A cultura do melão tem grande importância socioeconômica no Brasil. O estudo do efeito alelopático de extratos de espécies da caatinga poderá indicar aqueles que poderiam ser usados no controle de invasoras da cultura, mas os extratos não podem afetar o melão. O objetivo do trabalho foi avaliar os extratos de folhas e sementes de cumaru (Amburana cearenses A.C. Smith), juazeiro (Ziziphus joazeiro Mart.), jucá (Caesalpinia ferrea Mart. ex Tul. var. ferrea) e mulungu (Erythrina velutina Willd.) na emergência de plântulas de melão (Cucumis melo L.). O delineamento experimental foi inteiramente casualizado no esquema fatorial 8x5 (oito tipos de extratos e cinco concentrações) em quatro repetições com 20 sementes. Os tipos de extratos foram: a) extrato de folhas de cumaru, b) extrato de sementes de cumaru, c) extrato de folhas de juazeiro, d) extrato de sementes de juazeiro, e) extrato de folhas de jucá, f) extrato de sementes de jucá, g) extrato de folhas de mulungu, f) extrato de sementes de mulungu e as concentrações de cada extrato foram a) 1%, b) 0,5%, c) 0,25%, d) 0,125% e e) 0%. Foram avaliadas a porcentagem e índice de velocidade de emergência, porcentagem de plântulas anormais, massa seca da plântula, comprimento da parte aérea e da raiz da plântula. Os extratos de sementes de cumaru impediram a germinação de melão e os extratos de sementes de mulungu não afetaram a germinação. Os extratos de folhas de cumaru, de juazeiro e sementes de jucá causaram maior porcentagem de plântulas anormais de melão, as quais apresentaram ausência de pelos absorventes na raiz, raízes necrosados, escurecimento e endurecimento do ápice radicular, geotropismo negativo e raízes deformadas. Os extratos de mulungu podem ser usados na cultura do melão para controlar invasoras, mas os extratos de folhas de cumaru, de juazeiro e de sementes de jucá podem ser usados na cultura do melão apenas após a emergênciaUEL2016-04-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionExperimentosapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1982710.5433/1679-0359.2016v37n2p557Semina: Ciências Agrárias; Vol. 37 No. 2 (2016); 557-566Semina: Ciências Agrárias; v. 37 n. 2 (2016); 557-5661679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19827/18577http://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessOliveira, Andreya Kalyana deCoelho, Maria de Fatima BarbosaTorres, Salvador BarrosDiógenes, Francisco Ésio Porto2022-12-01T15:58:52Zoai:ojs.pkp.sfu.ca:article/19827Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-12-01T15:58:52Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Allelopathy by extracts of Caatinga species on melon seeds Alelopatia de extratos de espécies da caatinga sobre sementes de meloeiro |
title |
Allelopathy by extracts of Caatinga species on melon seeds |
spellingShingle |
Allelopathy by extracts of Caatinga species on melon seeds Oliveira, Andreya Kalyana de Cucumis melo L. Amburana cearensis Ziziphus joazeiro Caesalpinia férrea Erythrina velutina. Cucumis melo L. Amburana cearensis Ziziphus joazeiro Caesalpinia férrea Erythrina velutina. |
title_short |
Allelopathy by extracts of Caatinga species on melon seeds |
title_full |
Allelopathy by extracts of Caatinga species on melon seeds |
title_fullStr |
Allelopathy by extracts of Caatinga species on melon seeds |
title_full_unstemmed |
Allelopathy by extracts of Caatinga species on melon seeds |
title_sort |
Allelopathy by extracts of Caatinga species on melon seeds |
author |
Oliveira, Andreya Kalyana de |
author_facet |
Oliveira, Andreya Kalyana de Coelho, Maria de Fatima Barbosa Torres, Salvador Barros Diógenes, Francisco Ésio Porto |
author_role |
author |
author2 |
Coelho, Maria de Fatima Barbosa Torres, Salvador Barros Diógenes, Francisco Ésio Porto |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Oliveira, Andreya Kalyana de Coelho, Maria de Fatima Barbosa Torres, Salvador Barros Diógenes, Francisco Ésio Porto |
dc.subject.por.fl_str_mv |
Cucumis melo L. Amburana cearensis Ziziphus joazeiro Caesalpinia férrea Erythrina velutina. Cucumis melo L. Amburana cearensis Ziziphus joazeiro Caesalpinia férrea Erythrina velutina. |
topic |
Cucumis melo L. Amburana cearensis Ziziphus joazeiro Caesalpinia férrea Erythrina velutina. Cucumis melo L. Amburana cearensis Ziziphus joazeiro Caesalpinia férrea Erythrina velutina. |
description |
The melon crop is of great socioeconomic importance in Brazil and some species from the Caatinga biome show allelopathic effects on other species. The aim of this study was to assess leaf and seed extracts of cumaru (Amburana cearensis (Allemao) A.C. Sm.), the jujube tree (Zizyphus joazeiro Mart.), Jucá (Caesalpinia ferrea Mart. Ex. Tul. Var. Ferrea) and mulungu (Erythrina velutina Willd.) on the emergence of melon seeds (Cucumis melo L.). Leaves and seeds were used to produce extracts for each species at concentrations of a) 1%, b) 0.5% c) 0.25%, d) 0.125% and e) 0% (control). The experiment was conducted with each extract type and its respective concentrations in a completely randomized design, with four replicates, each of 20 seeds. The percentage emergence and rate index, percentage of abnormal seedlings, seedling dry matter and seedling shoot and root length were assessed. Seed extracts of A. cearensis prevented melon germination, whereas the other extracts had no effect on this variable. Leaf extracts of A. cearensis and leaf and seed extracts of Z. joazeiro, C. ferrea and E. velutina resulted in abnormal melon seedlings. The percentage of abnormal melon seedlings exceeded 30% when treated with C. ferrea seed extract at the highest concentration. Most extracts did not affect seedling dry matter, but E. velutina leaf and seed extract increased the dry matter accumulation of melon seedlings and Z. joazeiro seed extract decreased dry matter accumulation at a concentration of 0.25%. The highest concentrations of mulungu and jucá leaf extracts promoted the shoot growth of melon seedlings. The extract from E. velutina seeds negatively affected root length compared to the control, similar to the effect of C. ferrea and E. velutina leaf extracts at the highest concentrations. Extracts of different organs of Caatinga plants can affect the emergence and characteristics related to seedling growth, depending on the concentration. Most extracts did not affect germination or the emergence rate index, but affected seedling growth. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-04-26 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Experimentos |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19827 10.5433/1679-0359.2016v37n2p557 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19827 |
identifier_str_mv |
10.5433/1679-0359.2016v37n2p557 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/19827/18577 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 37 No. 2 (2016); 557-566 Semina: Ciências Agrárias; v. 37 n. 2 (2016); 557-566 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306072817664000 |