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Lojo, J. M. de; Gandolfo, J. E.; Feuring, V.; Giardina, E. B.; Boschi, C. L.; & Di Benedetto, A. H. (2021)"Garden post - transplant effects of pre - transplant plug cell volume and growing medium quality (as abiotic stresses) in Impatiens walleriana". Ornamental Horticulture,27, (3),p.320-333

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Documento:
Artículo
Título en español:
Desenvolvimento pós - plantio de Impatiens walleriana influenciada pelo volume de recipiente, qualidade do substrato e aplicação de citocinina na fase de produção da muda
Título en inglés:
Garden post - transplant effects of pre - transplant plug cell volume and growing medium quality (as abiotic stresses) in Impatiens walleriana
Autor/es:
Lojo, Juan María de; Gandolfo, Juan Esteban; Feuring, Verónica; Giardina, Ernesto Benito; Boschi, Carlos Luis; Di Benedetto, Adalberto Hugo
Filiación:
Lojo, Juan María de. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.
Gandolfo, Juan Esteban. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.
Feuring, Verónica. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.
Giardina, Ernesto Benito. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.
Boschi, Carlos Luis. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.
Di Benedetto, Adalberto Hugo. Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.
Di Benedetto, Adalberto Hugo. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrícolas. Balcarce, Buenos Aires, Argentina.
Año:
2021
Título revista:
Ornamental Horticulture
ISSN:
2447-536X
Volumen:
27
Número:
3
Páginas:
320-333
Temas:
BEDDING PLANTS; FIELD PERFORMANCE; GROWTH ANALYSIS; NURSERY PLANTAS ANUAIS; PERFORMANCE DE CAMPO; ANALISE DE CRESCIMENTO; VIVEIRO
Idioma:
Inglés

Resumen:

Although much is known about the production of bedding plants, including Impatiens walleriana, little has been documented on their post-production performance. Thus, the aim of this work was to understand how pre-transplant crop management related to root restrictions imposed by plug cell volume and substrate quality affects the post-production performance related to biomass accumulation. To this end, we tested four plug cell volumes, as well as four growing media with significantly different physical and chemical properties, during nursery and pot culture. We also evaluated the difference between use and nonuse of synthetic cytokinin spray (benzyl aminopurine, BAP), a proven stress alleviator. Our novelty data validated the previous hypothesis and showed that plant quality and garden performance are dependent on these potential stress sources. The physiological mechanisms involved included differences in leaf area expansion (estimated mainly by relative leaf area expansion rate) and differences in CO2 fixation capacity (estimated by net assimilation rate). The sum of these responses determined significant differences in total fresh and dry weight during pot culture, which were amplified when plants were transplanted to a field bed. Spraying plants with synthetic cytokinin early during nursery allowed overriding of most root restriction abiotic stresses related to plug cell volume and growing media; therefore, synthetic cytokinin constitutes a tool to improve the yield of bedding plants (at the grower’s level) and garden performance.

Citación:

---------- APA ----------

Lojo, J. M. de; Gandolfo, J. E.; Feuring, V.; Giardina, E. B.; Boschi, C. L.; & Di Benedetto, A. H. (2021). Garden post - transplant effects of pre - transplant plug cell volume and growing medium quality (as abiotic stresses) in Impatiens walleriana. Ornamental Horticulture,27, (3),p.320-333
10.1590/2447-536X.v27i3.2295

---------- CHICAGO ----------

Lojo, Juan María de, Gandolfo, Juan Esteban, Feuring, Verónica, Giardina, Ernesto Benito, Boschi, Carlos Luis, Di Benedetto, Adalberto Hugo. 2021. "Garden post - transplant effects of pre - transplant plug cell volume and growing medium quality (as abiotic stresses) in Impatiens walleriana". Ornamental Horticulture 27, no.3:320-333.
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http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2021delojo