Initial vegetative growth of coffee plants submitted to foliar spraying of Paclobutrazol
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Publication Date: | 2017 |
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Format: | Article |
Language: | eng por |
Source: | Coffee Science (Online) |
Download full: | https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311 |
Summary: | The objective of this study was evaluate the initial vegetative growth of plants cv. CatuaíVermelho IAC 144 submitted to foliar spraying of four solutions concentrations (250, 500, 750 and 1000 mg L-1) of pacloblutrazol (PBZ) and a control. The plants were cultivated in a greenhouse, in a randomized blocks experimental design, with five treatments and four replicates, evaluated at 120 days after PBZ application. The data were subjected to general and regression analysis of variance. All of morphological characteristics were affected by PBZ, with growth reduction of the coffee crown and lifting the root dry weight in comparison to the control plants. PBZ results in elevation of the SPAD index, xylem water potential, net photosynthesis rate and carboxylation efficiency of coffee plants. Net photosynthesis rate was affected by carboxylation efficiency, and transpiration was associated with greater water availability. The PBZ changes the relationship between the shoot and root growth, increasing the growth of roots and optimizes the relations of leaf gas exchange, due to elevation of plant water status.PBZ effects in morphological characteristics in initial growth of coffee plants are more evident in comparison to physiological alterations. |
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Initial vegetative growth of coffee plants submitted to foliar spraying of PaclobutrazolMorfofisiologia do crescimento vegetativo inicial de cafeeiros arabica submetidos a aplicação via foliar de PaclobutrazolCoffea arabicagrowth retardantstriazoleCoffea arabicaregulador de crescimentotriazolThe objective of this study was evaluate the initial vegetative growth of plants cv. CatuaíVermelho IAC 144 submitted to foliar spraying of four solutions concentrations (250, 500, 750 and 1000 mg L-1) of pacloblutrazol (PBZ) and a control. The plants were cultivated in a greenhouse, in a randomized blocks experimental design, with five treatments and four replicates, evaluated at 120 days after PBZ application. The data were subjected to general and regression analysis of variance. All of morphological characteristics were affected by PBZ, with growth reduction of the coffee crown and lifting the root dry weight in comparison to the control plants. PBZ results in elevation of the SPAD index, xylem water potential, net photosynthesis rate and carboxylation efficiency of coffee plants. Net photosynthesis rate was affected by carboxylation efficiency, and transpiration was associated with greater water availability. The PBZ changes the relationship between the shoot and root growth, increasing the growth of roots and optimizes the relations of leaf gas exchange, due to elevation of plant water status.PBZ effects in morphological characteristics in initial growth of coffee plants are more evident in comparison to physiological alterations.Objetivou-se com o presente estudo avaliar respostas morfológicas e fisiológicas durante o crescimento vegetativo inicial de plantas cv. Catuaí Vermelho IAC 144 submetidas à aplicação via foliar de quatro concentrações (250, 500, 750 e 1000 mg L-1) de pacloblutrazol (PBZ) e uma testemunha. O experimento foi conduzido em casa de vegetação com uma planta por vaso, em blocos ao acaso. Avaliaram-se o diâmetro do caule, número de folhas, massas fresca e seca da planta, índice SPAD, área foliar, potencial hídrico foliar e trocas gasosas. Os dados foram submetidos à análise de variância geral e da regressão. As características morfológicas foram afetadas pelo PBZ, ocorrendo redução do crescimento da parte aérea e elevação do peso de massa seca de raízes quando comparada à testemunha. Para os parâmetros fisiológicos o PBZ resultou em impactos positivos como a elevação do índice SPAD, do potencial hídrico foliar antemanhã, da fotossíntese líquida e da eficiência de carboxilação. A taxa de fotossíntese líquida potencial foi afetada pela eficiência da carboxilação, e a transpiração foi associada à maior disponibilidade hídrica da planta. O PBZ alterou a relação entre parte aérea e raiz, favorecendo o crescimento das raízes e otimizando as relações de trocas gasosas, devido à elevação do status hídrico da planta. Os efeitos do PBZ foram mais evidentes na morfologia do crescimento inicial dos cafeeiros quando comparados às alterações fisiológicas.Editora UFLA2017-11-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfimage/jpegimage/jpegapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/pdfimage/jpegimage/jpegimage/jpegapplication/vnd.openxmlformats-officedocument.wordprocessingml.documenthttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311Coffee Science - ISSN 1984-3909; Vol. 12 No. 4 (2017); 451 - 462Coffee Science; Vol. 12 Núm. 4 (2017); 451 - 462Coffee Science; v. 12 n. 4 (2017); 451 - 4621984-3909reponame:Coffee Science (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAengporhttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/PDF1311https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1775https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1776https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1777https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1778https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1779https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1780https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1781https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1782https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1783Copyright (c) 2017 Coffee Scienceinfo:eu-repo/semantics/openAccessd’Arêde, Lucialdo OliveiraMatsumoto, Sylvana NaomiSantos, Jerffson LucasViana, Anselmo Eloy SilveiraRamos, Paula Acássia Silva2019-04-22T01:58:07Zoai:coffeescience.ufla.br:article/1311Revistahttps://coffeescience.ufla.br/index.php/CoffeesciencePUBhttps://coffeescience.ufla.br/index.php/Coffeescience/oaicoffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com1984-39091809-6875opendoar:2024-05-21T19:54:02.272563Coffee Science (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
Initial vegetative growth of coffee plants submitted to foliar spraying of Paclobutrazol Morfofisiologia do crescimento vegetativo inicial de cafeeiros arabica submetidos a aplicação via foliar de Paclobutrazol |
title |
Initial vegetative growth of coffee plants submitted to foliar spraying of Paclobutrazol |
spellingShingle |
Initial vegetative growth of coffee plants submitted to foliar spraying of Paclobutrazol d’Arêde, Lucialdo Oliveira Coffea arabica growth retardants triazole Coffea arabica regulador de crescimento triazol |
title_short |
Initial vegetative growth of coffee plants submitted to foliar spraying of Paclobutrazol |
title_full |
Initial vegetative growth of coffee plants submitted to foliar spraying of Paclobutrazol |
title_fullStr |
Initial vegetative growth of coffee plants submitted to foliar spraying of Paclobutrazol |
title_full_unstemmed |
Initial vegetative growth of coffee plants submitted to foliar spraying of Paclobutrazol |
title_sort |
Initial vegetative growth of coffee plants submitted to foliar spraying of Paclobutrazol |
author |
d’Arêde, Lucialdo Oliveira |
author_facet |
d’Arêde, Lucialdo Oliveira Matsumoto, Sylvana Naomi Santos, Jerffson Lucas Viana, Anselmo Eloy Silveira Ramos, Paula Acássia Silva |
author_role |
author |
author2 |
Matsumoto, Sylvana Naomi Santos, Jerffson Lucas Viana, Anselmo Eloy Silveira Ramos, Paula Acássia Silva |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
d’Arêde, Lucialdo Oliveira Matsumoto, Sylvana Naomi Santos, Jerffson Lucas Viana, Anselmo Eloy Silveira Ramos, Paula Acássia Silva |
dc.subject.por.fl_str_mv |
Coffea arabica growth retardants triazole Coffea arabica regulador de crescimento triazol |
topic |
Coffea arabica growth retardants triazole Coffea arabica regulador de crescimento triazol |
description |
The objective of this study was evaluate the initial vegetative growth of plants cv. CatuaíVermelho IAC 144 submitted to foliar spraying of four solutions concentrations (250, 500, 750 and 1000 mg L-1) of pacloblutrazol (PBZ) and a control. The plants were cultivated in a greenhouse, in a randomized blocks experimental design, with five treatments and four replicates, evaluated at 120 days after PBZ application. The data were subjected to general and regression analysis of variance. All of morphological characteristics were affected by PBZ, with growth reduction of the coffee crown and lifting the root dry weight in comparison to the control plants. PBZ results in elevation of the SPAD index, xylem water potential, net photosynthesis rate and carboxylation efficiency of coffee plants. Net photosynthesis rate was affected by carboxylation efficiency, and transpiration was associated with greater water availability. The PBZ changes the relationship between the shoot and root growth, increasing the growth of roots and optimizes the relations of leaf gas exchange, due to elevation of plant water status.PBZ effects in morphological characteristics in initial growth of coffee plants are more evident in comparison to physiological alterations. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-11-28 |
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://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311 |
url |
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/PDF1311 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1775 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1776 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1777 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1778 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1779 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1780 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1781 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1782 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1311/1783 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Coffee Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Coffee Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf image/jpeg image/jpeg application/vnd.openxmlformats-officedocument.wordprocessingml.document application/vnd.openxmlformats-officedocument.wordprocessingml.document application/pdf image/jpeg image/jpeg image/jpeg application/vnd.openxmlformats-officedocument.wordprocessingml.document |
dc.publisher.none.fl_str_mv |
Editora UFLA |
publisher.none.fl_str_mv |
Editora UFLA |
dc.source.none.fl_str_mv |
Coffee Science - ISSN 1984-3909; Vol. 12 No. 4 (2017); 451 - 462 Coffee Science; Vol. 12 Núm. 4 (2017); 451 - 462 Coffee Science; v. 12 n. 4 (2017); 451 - 462 1984-3909 reponame:Coffee Science (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Coffee Science (Online) |
collection |
Coffee Science (Online) |
repository.name.fl_str_mv |
Coffee Science (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
coffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com |
_version_ |
1799874921063514112 |