Catálogo CEIBA de la Biblioteca Central de FAUBA


Sunflower oil yield responses to plant population and row spacing: vegetative and reproductive plasticity (Registro nro. 46080)

000 -CABECERA
campo de control de longitud fija nab a22 7a 4500
999 ## - NÚMEROS DE CONTROL DE SISTEMA (KOHA)
Koha biblionumber 46080
001 - NÚMERO DE CONTROL
campo de control 20181220122050.0
003 - IDENTIFICADOR DEL NÚMERO DE CONTROL
campo de control AR-BaUFA
005 - FECHA Y HORA DE LA ÚLTIMA TRANSACCIÓN
campo de control 20200619202932.0
008 - DATOS DE LONGITUD FIJA--INFORMACIÓN GENERAL
campo de control de longitud fija 181220t2019 ne d||||o|||| 00| | eng d
022 ## - NÚMERO INTERNACIONAL NORMALIZADO PARA PUBLICACIONES SERIADAS
Número Internacional Normalizado para Publicaciones Seriadas 0378-4290
024 ## - OTROS IDENTIFICADORES DOI
NUMERO NORMALIZADO O CODIGO 10.1016/j.fcr.2018.09.014
040 ## - FUENTE DE LA CATALOGACIÓN
Centro catalogador/agencia de origen AR-BaUFA
100 1# - ENTRADA PRINCIPAL--NOMBRE DE PERSONA
9 (RLIN) 7999
Nombre de persona López Pereira, Mónica
Filiación Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal. Cátedra de Cultivos Industriales. Buenos Aires, Argentina.
245 00 - MENCIÓN DE TÍTULO
Título Sunflower oil yield responses to plant population and row spacing: vegetative and reproductive plasticity
520 ## - SUMARIO, ETC
Resumen o abstract Attempts have not been made to increase the potential yield of sunflower via the combined use of high plant populations and crowding-tolerant cultivars, an approach that has been successful in maize -another strong apical dominance crop. This may be due to the negative effects of increased disease pressure and increased susceptibility to lodging at high sunflower plant populations. Information on crop yield responses to plant populations higher than usual recommended commercial plant populations is also limited. Wide inter-row spacing could shift crop water consumption towards later developmental stages with positive effects on yield in seasons of low rainfall, but might also limit crop yields in years with good rainfall. Here we report on studies aimed at examining yield (both oil and total biomass) responses to changes in plant population at two inter-row spacings: 0.7 and 1.4 m, in crops grown without restrictions due to water or nutrients, and protected from insects and diseases. Oil yields in the 0.7m row spacing treatments increased over the whole of the 2.0-14.3 plants m-2 range, reaching values much greater than those obtainable at the current commercial plant population of around 5.1 plants m-2. This increase reflected a continuous increase with increased plant population for total crop biomass, together with an unchanging harvest index. Over the 2-7 plant m-2 range of plant populations shared between the two row spacing treatments yields were not affected by spacing. Vegetative and reproductive plasticities, as reflected in the responses of biomass and plant leaf area at mid-anthesis to ground surface area per plant (vegetative plasticity indicators) and oil yield per plant to ground surface area per plant (reproductive plasticity indicator) did not vary over the 2.0-14.3 plant m-2 plant population range in either row spacing. In the 0.7-m row-spaced crops, reproductive plasticity was less than vegetative plasticity and a similar tendency was observed at the 1.4-m row spacing. Floret number and achene number per plant together with unit achene weight decreased over the 2.0-14.3 plant m-2 range for both row spacings, while fertility ratio over the same range was stable. Over the same range of plant population, achene oil concentration fell slightly, while achene oil content increased slightly and then stabilised. The study of the genetic basis of the plasticities found in this work should contribute to breeding programs aimed at increasing crop tolerance to high plant population densities.
653 ## - TÉRMINO DE INDIZACIÓN--NO CONTROLADO
Término no controlado POTENTIAL OIL YIELD
653 ## - TÉRMINO DE INDIZACIÓN--NO CONTROLADO
Término no controlado PLANT POPULATION
653 ## - TÉRMINO DE INDIZACIÓN--NO CONTROLADO
Término no controlado ROW SPACING
653 ## - TÉRMINO DE INDIZACIÓN--NO CONTROLADO
Término no controlado VEGETATIVE PLASTICITY
653 ## - TÉRMINO DE INDIZACIÓN--NO CONTROLADO
Término no controlado REPRODUCTIVE PLASTICITY
700 1# - ENTRADA SECUNDARIA--NOMBRE DE PERSONA
Nombre de persona Hall, Antonio Juan
Filiación Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
-- CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.
773 0# - ENLACE AL DOCUMENTO FUENTE/ENTRADA DE REGISTRO ANFITRIÓN
Título Field crops research
Número de control del registro (AR-BaUFA)SECS000083
Parte(s) relacionada(s) vol.230 (2019), p.17-30, tbls., grafs.
856 ## - LOCALIZACIÓN Y ACCESO ELECTRÓNICOS
Nombre electrónico 2019lopezpereira
Tipo de formato electrónico application/pdf
Identificador Uniforme del Recurso http://ri.agro.uba.ar/files/intranet/articulo/2019lopezpereira.pdf
856 ## - LOCALIZACIÓN Y ACCESO ELECTRÓNICOS
Nota pública LINK AL EDITOR
Identificador Uniforme del Recurso http://www.elsevier.com
942 0# - ELEMENTOS DE PUNTO DE ACCESO ADICIONAL (KOHA)
Tipo de ítem Koha Artículos y capítulos
942 0# - ELEMENTOS DE PUNTO DE ACCESO ADICIONAL (KOHA)
Tipo de ítem Koha Recurso electrónico
976 ## - ETIQUETA LOCAL
Datos locales AAG
700 1# - ENTRADA SECUNDARIA--NOMBRE DE PERSONA
-- 24024

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