GROWTH AND YIELD OF THE COMMON BEAN IN RESPONSE TO COMBINED APPLICATION OF NITROGEN AND PACLOBUTRAZOL

Nitrogen fertilization is a common practice used to increase the yield of winter bean crops. However, this practice leads to excessively tall and prostrate plants that have too many leaves, resulting in self - shading, and low yield and grain quality. The use of growth regulators could minimize the...

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Main Authors: OLIVIA MACHADO DE ALMEIDA, HYRANDIR CABRAL DE MELO, TOMÁS DE AQUINO PORTES
Format: Article
Language:English
Published: Universidade Federal Rural do Semi-Árido 2016-01-01
Series:Revista Caatinga
Online Access:http://www.redalyc.org/articulo.oa?id=237144625015
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author OLIVIA MACHADO DE ALMEIDA
HYRANDIR CABRAL DE MELO
TOMÁS DE AQUINO PORTES
author_facet OLIVIA MACHADO DE ALMEIDA
HYRANDIR CABRAL DE MELO
TOMÁS DE AQUINO PORTES
author_sort OLIVIA MACHADO DE ALMEIDA
collection DOAJ
description Nitrogen fertilization is a common practice used to increase the yield of winter bean crops. However, this practice leads to excessively tall and prostrate plants that have too many leaves, resulting in self - shading, and low yield and grain quality. The use of growth regulators could minimize the undesired effects of nitrogen fertilization. This study aims to determine the optimal concentration of paclobutrazol (PBZ) for inhibiting bean growth using the cultivars BRS Pontal and BRS Supremo. The plants were treated with PBZ at different concentrations, and also in combination with ammonium sulfate ten days after fertilization. The height and yield of plants were evaluated. It was observed that PBZ at 8 mg L - 1 effectively inhibits the growth of bean plants, and increases the number of pods and grains. Higher concentrations of PBZ proved to be phytotoxic. Additionally, the application of PBZ ten days after fertilization with ammonium sulfate did not suppress the overgrowth of bean plants, and did not affect their yield.
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spelling doaj.art-fe718a31ea0e4ca9a3afcb4e4e6b19af2022-12-21T23:47:43ZengUniversidade Federal Rural do Semi-ÁridoRevista Caatinga0100-316X1983-21252016-01-01291127132GROWTH AND YIELD OF THE COMMON BEAN IN RESPONSE TO COMBINED APPLICATION OF NITROGEN AND PACLOBUTRAZOLOLIVIA MACHADO DE ALMEIDAHYRANDIR CABRAL DE MELOTOMÁS DE AQUINO PORTESNitrogen fertilization is a common practice used to increase the yield of winter bean crops. However, this practice leads to excessively tall and prostrate plants that have too many leaves, resulting in self - shading, and low yield and grain quality. The use of growth regulators could minimize the undesired effects of nitrogen fertilization. This study aims to determine the optimal concentration of paclobutrazol (PBZ) for inhibiting bean growth using the cultivars BRS Pontal and BRS Supremo. The plants were treated with PBZ at different concentrations, and also in combination with ammonium sulfate ten days after fertilization. The height and yield of plants were evaluated. It was observed that PBZ at 8 mg L - 1 effectively inhibits the growth of bean plants, and increases the number of pods and grains. Higher concentrations of PBZ proved to be phytotoxic. Additionally, the application of PBZ ten days after fertilization with ammonium sulfate did not suppress the overgrowth of bean plants, and did not affect their yield.http://www.redalyc.org/articulo.oa?id=237144625015
spellingShingle OLIVIA MACHADO DE ALMEIDA
HYRANDIR CABRAL DE MELO
TOMÁS DE AQUINO PORTES
GROWTH AND YIELD OF THE COMMON BEAN IN RESPONSE TO COMBINED APPLICATION OF NITROGEN AND PACLOBUTRAZOL
Revista Caatinga
title GROWTH AND YIELD OF THE COMMON BEAN IN RESPONSE TO COMBINED APPLICATION OF NITROGEN AND PACLOBUTRAZOL
title_full GROWTH AND YIELD OF THE COMMON BEAN IN RESPONSE TO COMBINED APPLICATION OF NITROGEN AND PACLOBUTRAZOL
title_fullStr GROWTH AND YIELD OF THE COMMON BEAN IN RESPONSE TO COMBINED APPLICATION OF NITROGEN AND PACLOBUTRAZOL
title_full_unstemmed GROWTH AND YIELD OF THE COMMON BEAN IN RESPONSE TO COMBINED APPLICATION OF NITROGEN AND PACLOBUTRAZOL
title_short GROWTH AND YIELD OF THE COMMON BEAN IN RESPONSE TO COMBINED APPLICATION OF NITROGEN AND PACLOBUTRAZOL
title_sort growth and yield of the common bean in response to combined application of nitrogen and paclobutrazol
url http://www.redalyc.org/articulo.oa?id=237144625015
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AT tomasdeaquinoportes growthandyieldofthecommonbeaninresponsetocombinedapplicationofnitrogenandpaclobutrazol