Preliminary study of water requirements in onion (Allium cepa L.) cv. Valcatorce in relation to seed production

The effect of water stress applied in different periods of the life cycle of onion (Allium cepa L.) (cv. Valcatorce) on seed production of crops managed by the "seed-bulb-seed" technique was evaluated. Drought effects were obtained by interruption of irrigation during the following phenolo...

Descripción completa

Detalles Bibliográficos
Autores principales: Borgo, R., Stahlschmidt, O. M., Tizio, R. M.
Formato: Artículo revista
Lenguaje:Español
Publicado: Facultad de Ciencias Agropecuarias 1993
Materias:
orion
seed
yield
water stress
critical periods
phenelogical phases
irrigation
cebolla
semilla
rendimiento
estrés hídrico
periodos críticos
fases fenológicas
riesgo
Acceso en línea:https://revistas.unc.edu.ar/index.php/agris/article/view/2422
Aporte de:
AgriScientia de Universidad Nacional de Córdoba
id I10-R352-article-2422
record_format ojs
spelling I10-R352-article-24222024-10-09T13:15:16Z Preliminary study of water requirements in onion (Allium cepa L.) cv. Valcatorce in relation to seed production Estudio preliminar de requerimientos hídricos en cebolla (Allium cepa L.) cv. Valcatorce en relación a la producción de semilla Borgo, R. Stahlschmidt, O. M. Tizio, R. M. orion seed yield water stress critical periods phenelogical phases irrigation cebolla semilla rendimiento estrés hídrico periodos críticos fases fenológicas riesgo The effect of water stress applied in different periods of the life cycle of onion (Allium cepa L.) (cv. Valcatorce) on seed production of crops managed by the "seed-bulb-seed" technique was evaluated. Drought effects were obtained by interruption of irrigation during the following phenological phases: 1) Vegetative, from plant emergence to just prior elongation of flower stalks; 2) Flower stalk growth; 3) Fruit growth and 4) Control, normally irrigated according to the technique used in the region of La Consulta, Mendoza, Argentina. The following parameters were evaluated: a. Umbels per plant; b. Flowers per umbel; c. Seed number per umbel; d. Foliage dry weight; e. Weight of 1000 seeds. Seed yield per hectare and seed number per flower were also calculated. Water potentials (in MPa) reached by plants at the end of each treatment were: in 1) -1.26; in 2) -0.9; in 3) -1.02 and in 4) -0.28 to -0.60 MPa. The results show that drought during the vegetative period and growth of flower stalks drastically affected seed yield and its components. Se evaluó el efecto de déficit hídricos impuestos en distintos periodos del ciclo vegetativo de la cebolla (Allium cepa L.) cv Valcatorce, en relación al rendimiento en semilla obtenida por el método "semilla-bulbo-semilla". Los déficits hídricos se impusieron por suspensión del riego durante los siguientes períodos fenológicos: 1) Vegetativo, desde la emergencia de las plantas hasta el inicio de alargamiento del escapo floral; 2) Crecimiento del escapo floral; 3) "Llenado" de semillas y 4) Testigo regado a un umbral de, aproximadamente, el 60 % de agua disponible en el suelo. Se determinó: a. número de umbelas/planta; b. flores/umbela; c. semillas/umbela; d. peso seco de follaje/planta; e. peso de mil semillas y T50; se calculó: rendimiento por hectárea, porcentaje de cuaje, número de flores/planta y número de semillas/flor. Los potenciales de agua alcanzados al final de los tratamientos fueron: en 1) -1,26 MPa; 2) -0,9 MPa y 3) -1,02 MPa. El testigo osciló entre -0,23 y -0,6 MPa. Los resultados muestran que la sequía durante el crecimiento vegetativo y de los escapos florales afectó severamente el rendimiento en semilla y sus componentes.  Facultad de Ciencias Agropecuarias 1993-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/2422 10.31047/1668.298x.v10.n0.2422 AgriScientia; Vol. 10 (1993); 3-9 AgriScientia; Vol. 10 (1993); 3-9 1668-298X 10.31047/1668.298x.v10.n0 spa https://revistas.unc.edu.ar/index.php/agris/article/view/2422/1369 Derechos de autor 1993 R. Borgo, O. M. Stahlschmidt, R. M. Tizio https://creativecommons.org/licenses/by-sa/4.0
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-352
container_title_str AgriScientia
language Español
format Artículo revista
topic orion
seed
yield
water stress
critical periods
phenelogical phases
irrigation
cebolla
semilla
rendimiento
estrés hídrico
periodos críticos
fases fenológicas
riesgo
spellingShingle orion
seed
yield
water stress
critical periods
phenelogical phases
irrigation
cebolla
semilla
rendimiento
estrés hídrico
periodos críticos
fases fenológicas
riesgo
Borgo, R.
Stahlschmidt, O. M.
Tizio, R. M.
Preliminary study of water requirements in onion (Allium cepa L.) cv. Valcatorce in relation to seed production
topic_facet orion
seed
yield
water stress
critical periods
phenelogical phases
irrigation
cebolla
semilla
rendimiento
estrés hídrico
periodos críticos
fases fenológicas
riesgo
author Borgo, R.
Stahlschmidt, O. M.
Tizio, R. M.
author_facet Borgo, R.
Stahlschmidt, O. M.
Tizio, R. M.
author_sort Borgo, R.
title Preliminary study of water requirements in onion (Allium cepa L.) cv. Valcatorce in relation to seed production
title_short Preliminary study of water requirements in onion (Allium cepa L.) cv. Valcatorce in relation to seed production
title_full Preliminary study of water requirements in onion (Allium cepa L.) cv. Valcatorce in relation to seed production
title_fullStr Preliminary study of water requirements in onion (Allium cepa L.) cv. Valcatorce in relation to seed production
title_full_unstemmed Preliminary study of water requirements in onion (Allium cepa L.) cv. Valcatorce in relation to seed production
title_sort preliminary study of water requirements in onion (allium cepa l.) cv. valcatorce in relation to seed production
description The effect of water stress applied in different periods of the life cycle of onion (Allium cepa L.) (cv. Valcatorce) on seed production of crops managed by the "seed-bulb-seed" technique was evaluated. Drought effects were obtained by interruption of irrigation during the following phenological phases: 1) Vegetative, from plant emergence to just prior elongation of flower stalks; 2) Flower stalk growth; 3) Fruit growth and 4) Control, normally irrigated according to the technique used in the region of La Consulta, Mendoza, Argentina. The following parameters were evaluated: a. Umbels per plant; b. Flowers per umbel; c. Seed number per umbel; d. Foliage dry weight; e. Weight of 1000 seeds. Seed yield per hectare and seed number per flower were also calculated. Water potentials (in MPa) reached by plants at the end of each treatment were: in 1) -1.26; in 2) -0.9; in 3) -1.02 and in 4) -0.28 to -0.60 MPa. The results show that drought during the vegetative period and growth of flower stalks drastically affected seed yield and its components.
publisher Facultad de Ciencias Agropecuarias
publishDate 1993
url https://revistas.unc.edu.ar/index.php/agris/article/view/2422
work_keys_str_mv AT borgor preliminarystudyofwaterrequirementsinonionalliumcepalcvvalcatorceinrelationtoseedproduction
AT stahlschmidtom preliminarystudyofwaterrequirementsinonionalliumcepalcvvalcatorceinrelationtoseedproduction
AT tiziorm preliminarystudyofwaterrequirementsinonionalliumcepalcvvalcatorceinrelationtoseedproduction
AT borgor estudiopreliminarderequerimientoshidricosencebollaalliumcepalcvvalcatorceenrelacionalaproducciondesemilla
AT stahlschmidtom estudiopreliminarderequerimientoshidricosencebollaalliumcepalcvvalcatorceenrelacionalaproducciondesemilla
AT tiziorm estudiopreliminarderequerimientoshidricosencebollaalliumcepalcvvalcatorceenrelacionalaproducciondesemilla
first_indexed 2024-09-03T22:15:04Z
last_indexed 2025-02-05T22:11:55Z
_version_ 1823257149803855872

Ejemplares similares