Garden post - transplant effects of pre - transplant plug cell volume and growing medium quality (as abiotic stresses) in Impatiens walleriana

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...

Descripción completa

Detalles Bibliográficos
Otros Autores: Lojo, Juan María de, Gandolfo, Juan Esteban, Feuring, Verónica, Giardina, Ernesto Benito, Boschi, Carlos Luis, Di Benedetto, Adalberto Hugo
Formato: Artículo
Lenguaje:Inglés
Materias:
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2021delojo.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
LEADER 03815cab a22004577a 4500
001 20220916134847.0
003 AR-BaUFA
005 20241106124949.0
008 220916t2021 bl d||||o|||| 00| 0 eng d
999 |c 54970  |d 54970 
999 |d 54970 
999 |d 54970 
999 |d 54970 
999 |d 54970 
999 |d 54970 
022 |a 2447-536X 
024 |a 10.1590/2447-536X.v27i3.2295 
040 |a AR-BaUFA  |c AR-BaUFA 
245 1 0 |a Garden post - transplant effects of pre - transplant plug cell volume and growing medium quality (as abiotic stresses) in Impatiens walleriana 
246 0 0 |a Desenvolvimento pós - plantio de Impatiens walleriana influenciada pelo volume de recipiente, qualidade do substrato e aplicação de citocinina na fase de produção da muda 
520 |a 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. 
650 |2 Agrovoc  |9 26 
653 |a BEDDING PLANTS 
653 |a FIELD PERFORMANCE 
653 |a GROWTH ANALYSIS 
653 |a NURSERY PLANTAS ANUAIS 
653 |a PERFORMANCE DE CAMPO 
653 |a ANALISE DE CRESCIMENTO 
653 |a VIVEIRO 
700 1 |a Lojo, Juan María de  |u Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.  |9 74050 
700 1 |a Gandolfo, Juan Esteban  |u Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.  |9 27040 
700 1 |a Feuring, Verónica  |u Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.  |9 72677 
700 1 |a Giardina, Ernesto Benito  |u Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.  |9 44390 
700 1 |a Boschi, Carlos Luis  |u Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.  |9 26643 
700 1 |9 698  |a Di Benedetto, Adalberto Hugo  |u Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina.  |u Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrícolas. Balcarce, Buenos Aires, Argentina. 
773 |t Ornamental horticulture  |g Vol.27, no.3 (2021), p.320-333, tbls., grafs. 
856 |f 2021delojo  |i En reservorio  |q application/pdf  |u http://ri.agro.uba.ar/files/intranet/articulo/2021delojo.pdf  |x ARTI202210 
856 |u https://www.ornamentalhorticulture.com.br  |z LINK AL EDITOR 
942 |c ARTICULO 
942 |c ENLINEA 
976 |a AAG