Influencia de la defoliación de un hibrido varietal blanco de maíz (Zea mays L.)

Influencia de la defoliación de un hibrido varietal blanco de maíz (Zea mays L.)

The research was conducted during three semesters (1.97913, 1.98013 and I.981A) at the Experimental Station "Tulio Ospina", located in medium climate of Colombia (1.438 m.a.sJ. with 22°C of average temperature and 1.500 nun of annual rainfall). The objective of this research was to evaluat...

Descripción completa

Detalles Bibliográficos
Autor principal: Díaz Amaris, Carlos
Formato: article
Lenguaje:Español
Publicado: Instituto Colombiano Agropecuario 2019
Materias:
Investigación agropecuaria - A50
Cultivo - F01
Defoliación
Maíz
Transitorios
Acceso en línea:http://hdl.handle.net/20.500.12324/35314
id RepoAGROSAVIA35314
record_format dspace
spelling RepoAGROSAVIA353142022-04-07T19:17:56Z Influencia de la defoliación de un hibrido varietal blanco de maíz (Zea mays L.) Díaz Amaris, Carlos Investigación agropecuaria - A50 Cultivo - F01 Defoliación Maíz Transitorios The research was conducted during three semesters (1.97913, 1.98013 and I.981A) at the Experimental Station "Tulio Ospina", located in medium climate of Colombia (1.438 m.a.sJ. with 22°C of average temperature and 1.500 nun of annual rainfall). The objective of this research was to evaluate the effect of total and partial defoliation during the female flowering period upon grain yield, plant ear number, grain humidity, physiological maturity and grain filling period in the white semident experimental variety hybrid of corn Diacol V.351 x Cinimyt 307. The main conclusions were: I. The best contribution of dry matter to the grain came from leaves of the middle and upper third of the plant (almost 80 per cent of the total contribution). With extreme conditions of total defoliation during the silking period the stem contributed with 5 per cent of photosynthetic material to the graing flung. The dry grain weight and the ear number per plant decreased with total defoliation of the superior third, the middle third or the inferior and middle thirds of the plant or the whole and apparently it was not affected by the absence of the inferior leaves. The grain maturity was anticipated when the loss of the leaves was 66% or 100% and it was not affected with a 33% of defoliation, The grain filling took 76 days and it was reduced in 30 and 40 days when the defoliation was 66 and 100 per cent. Al medir el efecto de la eliminación parcial y total del follaje en el híbrido blanco Diacol V.351 x Cmimyt 307 se obtuvieron los siguientes resultados: - La mayor contribución de materia seca al grano provino de las hojas de los tercios medio y superior (aproximadamente el 80%del total). - En condiciones extremas de pérdida total del follaje, durante la época de floración femenina, el tallo contribuye con un 5%de material fotosintético para el llenado del grano. - El peso seco de los granos por planta y el número de mazorcas por planta disminuyeron con la pérdida durante la floración femenina de todas las hojas de las hojas del tercio superior o del tercio medio del tercio inferior y medio y no se afectaron por la ausencia de las inferiores. - El tiempo requerido por las plantas del hibrido varietal estudiado para llenar los granos fue de 76 días y se redujo en 30 y 40 días con la pérdida del 66%y del 10017 o del follaje, respectivamente. Maíz-Zea mays 2019-08-27T23:20:08Z 2019-08-27T23:20:08Z 1983 article Artículo científico http://purl.org/coar/resource_type/c_2df8fbb1 info:eu-repo/semantics/article https://purl.org/redcol/resource_type/ART http://purl.org/coar/version/c_970fb48d4fbd8a85 0018-8794 http://hdl.handle.net/20.500.12324/35314 1122 reponame:Biblioteca Digital Agropecuaria de Colombia repourl:https://repository.agrosavia.co instname:Corporación colombiana de investigación agropecuaria AGROSAVIA spa Revista ICA 18 1 1 8 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ Acceso a texto completo info:eu-repo/semantics/openAccess application/pdf application/pdf Antioquia Bello Colombia Instituto Colombiano Agropecuario Bogotá (Colombia) Revista ICA; Vol. 18 Núm. 1 (1983): Revista ICA (Marzo); p. 1-8
institution Corporación Colombiana de Investigación Agropecuaria
collection Repositorio AGROSAVIA
language Español
topic Investigación agropecuaria - A50
Cultivo - F01
Defoliación
Maíz
Transitorios
spellingShingle Investigación agropecuaria - A50
Cultivo - F01
Defoliación
Maíz
Transitorios
Díaz Amaris, Carlos
Influencia de la defoliación de un hibrido varietal blanco de maíz (Zea mays L.)
description The research was conducted during three semesters (1.97913, 1.98013 and I.981A) at the Experimental Station "Tulio Ospina", located in medium climate of Colombia (1.438 m.a.sJ. with 22°C of average temperature and 1.500 nun of annual rainfall). The objective of this research was to evaluate the effect of total and partial defoliation during the female flowering period upon grain yield, plant ear number, grain humidity, physiological maturity and grain filling period in the white semident experimental variety hybrid of corn Diacol V.351 x Cinimyt 307. The main conclusions were: I. The best contribution of dry matter to the grain came from leaves of the middle and upper third of the plant (almost 80 per cent of the total contribution). With extreme conditions of total defoliation during the silking period the stem contributed with 5 per cent of photosynthetic material to the graing flung. The dry grain weight and the ear number per plant decreased with total defoliation of the superior third, the middle third or the inferior and middle thirds of the plant or the whole and apparently it was not affected by the absence of the inferior leaves. The grain maturity was anticipated when the loss of the leaves was 66% or 100% and it was not affected with a 33% of defoliation, The grain filling took 76 days and it was reduced in 30 and 40 days when the defoliation was 66 and 100 per cent.
format article
author Díaz Amaris, Carlos
author_facet Díaz Amaris, Carlos
author_sort Díaz Amaris, Carlos
title Influencia de la defoliación de un hibrido varietal blanco de maíz (Zea mays L.)
title_short Influencia de la defoliación de un hibrido varietal blanco de maíz (Zea mays L.)
title_full Influencia de la defoliación de un hibrido varietal blanco de maíz (Zea mays L.)
title_fullStr Influencia de la defoliación de un hibrido varietal blanco de maíz (Zea mays L.)
title_full_unstemmed Influencia de la defoliación de un hibrido varietal blanco de maíz (Zea mays L.)
title_sort influencia de la defoliación de un hibrido varietal blanco de maíz (zea mays l.)
publisher Instituto Colombiano Agropecuario
publishDate 2019
url http://hdl.handle.net/20.500.12324/35314
work_keys_str_mv AT diazamariscarlos influenciadeladefoliaciondeunhibridovarietalblancodemaizzeamaysl
_version_ 1808107605583724544

Ejemplares similares