Biomass accumulation in an ornamental Cactaceae (Mammillaria elongata subsp. echinaria) in response to a single 6-benzylaminopurine (BAP) spray

In ornamental plants growing in pots, root restriction would be presumably related to an endogenous long-distance cytokinin signal from roots. In this context, it has been recently indicated that, in potted ornamental plants, a single 6-benzylaminopurine (BAP) spray can be used to increase biomass a...

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Detalles Bibliográficos
Autor principal: Lozano Miglioli, Jorge
Otros Autores: Giardina, Ernesto Benito, Di Benedetto, Adalberto Hugo
Formato: Artículo
Lenguaje:Inglés
Materias:
CACTUS GROWTH
CYTOKININ
PHOTOASSIMILATE PARTITIONING
Acceso en línea:http://ri.agro.uba.ar/files/download/articulo/2019lozanomiglioli.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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100 1 |9 73436  |a Lozano Miglioli, Jorge  |u Scientific Research Committee of the Province of Buenos Aires (CIC). La Plata, Buenos Aires, Argentina. 
245 0 |a Biomass accumulation in an ornamental Cactaceae (Mammillaria elongata subsp. echinaria) in response to a single 6-benzylaminopurine (BAP) spray 
520 |a In ornamental plants growing in pots, root restriction would be presumably related to an endogenous long-distance cytokinin signal from roots. In this context, it has been recently indicated that, in potted ornamental plants, a single 6-benzylaminopurine (BAP) spray can be used to increase biomass accumulation. Although cytokinin sprays and cytokinin-containing substances have been previously used to improve growth in cacti, the physiological mechanism involved has not been elucidated. Thus, this work aimed to evaluate the effect of a single BAP spray on the growth of the vegetative axillary stems of the cactus Mammillaria elongata subsp. echinaria. To achieve this general objective, M. elongata subsp. echinaria plants were sprayed with 0, 5, 50, 100 or 200 mg L-1 BAP solutions (40 plants per treatment) and grown for 210 days under greenhouse conditions. The results showed that a single BAP spray increased both fresh and dry weights, photosynthetic stem area, root length and a number of axillary stems at 90 days after the beginning of the experiment. The higher biomass accumulation was related to a higher rate of stem area expansion (RSAE), relative growth rate (RGR), net assimilation rate (NAR) and partitioning of hotoassimilates into stems. This results indicate that M. elongata subsp. echinaria biomass accumulation can be increased by a single BAP spray of 5 mg L-1, although the highest response was found with a 200 mg L-1 BAP spray. 
650 |2 Agrovoc  |9 26 
653 |a CACTUS GROWTH 
653 |a CYTOKININ 
653 |a PHOTOASSIMILATE PARTITIONING 
700 1 |9 44390  |a Giardina, Ernesto Benito  |u Universidad de Buenos Aires. Facultad de Agronomía. Buenos Aires, Argentina. 
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 Agrarias. Balcarce. Buenos Aires, Argentina. 
773 |t Journal of the Professional Association for Cactus Development  |g Vol.21 (2019), p.43-56, tbls., grafs., fot. 
856 |f 2019lozanomiglioli  |i En internet  |q application/pdf  |u http://ri.agro.uba.ar/files/download/articulo/2019lozanomiglioli.pdf  |x ARTI202204 
856 |u https://www.jpacd.org/jpacd/  |z LINK AL EDITOR 
942 |c ARTICULO 
942 |c ENLINEA 
976 |a AAG 

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