Root-shoot growth and time to transplant of different lettuce genotypes during nursery

Although vegetable nursery growers decide on plug sizes based on the types, production time and schedule of the crops to grow, they usually choose individual small cell sizes because these allow short plant-raising periods and reduced costs. However, larger plugs produce a finished plant after tran...

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Autores principales: Di Benedetto, Adalberto, Carnelos, Danilo, Lozano Miglioli, Jorge, Fujinuma, Pablo, Giardina, Ernesto
Formato: Artículo revista
Lenguaje:Inglés
Publicado: Facultad de Ciencias Agrarias-UNCuyo 2021
Materias:
Citocininas
partición de fotoasimilados
tamaño de celda
restricción radical
hortalizas
synthetic cytokinin
photo-assimilate partitioning
plug tray
root restriction
vegetables
Acceso en línea:https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3688
Aporte de:
Revista de la Facultad de Ciencias Agrarias UNCuyo de Universidad Nacional de Cuyo
id I11-R107article-3688
record_format ojs
institution Universidad Nacional de Cuyo
institution_str I-11
repository_str R-107
container_title_str Revista de la Facultad de Ciencias Agrarias UNCuyo
language Inglés
format Artículo revista
topic Citocininas
partición de fotoasimilados
tamaño de celda
restricción radical
hortalizas
synthetic cytokinin
photo-assimilate partitioning
plug tray
root restriction
vegetables
spellingShingle Citocininas
partición de fotoasimilados
tamaño de celda
restricción radical
hortalizas
synthetic cytokinin
photo-assimilate partitioning
plug tray
root restriction
vegetables
Di Benedetto, Adalberto
Carnelos, Danilo
Lozano Miglioli, Jorge
Fujinuma, Pablo
Giardina, Ernesto
Root-shoot growth and time to transplant of different lettuce genotypes during nursery
topic_facet Citocininas
partición de fotoasimilados
tamaño de celda
restricción radical
hortalizas
synthetic cytokinin
photo-assimilate partitioning
plug tray
root restriction
vegetables
author Di Benedetto, Adalberto
Carnelos, Danilo
Lozano Miglioli, Jorge
Fujinuma, Pablo
Giardina, Ernesto
author_facet Di Benedetto, Adalberto
Carnelos, Danilo
Lozano Miglioli, Jorge
Fujinuma, Pablo
Giardina, Ernesto
author_sort Di Benedetto, Adalberto
title Root-shoot growth and time to transplant of different lettuce genotypes during nursery
title_short Root-shoot growth and time to transplant of different lettuce genotypes during nursery
title_full Root-shoot growth and time to transplant of different lettuce genotypes during nursery
title_fullStr Root-shoot growth and time to transplant of different lettuce genotypes during nursery
title_full_unstemmed Root-shoot growth and time to transplant of different lettuce genotypes during nursery
title_sort root-shoot growth and time to transplant of different lettuce genotypes during nursery
description Although vegetable nursery growers decide on plug sizes based on the types, production time and schedule of the crops to grow, they usually choose individual small cell sizes because these allow short plant-raising periods and reduced costs. However, larger plugs produce a finished plant after transplant in a shorter period of time than smaller plugs. Nursery growers end the propagation period when roots take up the plug cell and plantlets can be removed from the plug tray without damage. Thus, this study aimed to investigate the effect of three plug-cell sizes and a single BAP application (100 mg L-1) on the shoot and root growth and time to transplant of different lettuce genotypes. Nursery decreased as plug cell volume increased and with the single BAP spray. A novelty result was that the transplant dates were assigned when the marginal root dry weight accumulation decreased, i.e., based on objective rather than on subjective observations. The significant leaf area and dry weight accumulation found could be explained by growth parameters such as the rate of leaf appearance, the relative rate of leaf area expansion, the relative growth rate, the net assimilation rate and the partition coefficient from root: shoot allometries. Highlights Root restriction due to small plugs in transplant trays delay lettuce transplant. Exogenous cytokinin (BAP) overcame root restriction and decreased time to transplant. Time to transplant can be addressed on an objective basis: it were assigned when the marginal root dry weight accumulation decreased.
publisher Facultad de Ciencias Agrarias-UNCuyo
publishDate 2021
url https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/3688
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first_indexed 2022-06-20T13:53:29Z
last_indexed 2022-06-20T13:53:29Z
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