Data/hora: 16/06/2024 08:24:10

Biblioteca(s): | Epagri-Sede.
Data corrente: | 03/09/2014
Data da última atualização: | 03/09/2014
Autoria: | FISCHER, D. L. O.; PIANA, C. F. B.; PASA, M. S.; LIMA, C. J. D.; FERNANDES, G. W.; BORGES, E. A.
Título: | Rooting of bluberry hardwood cuttings as affected by irrigation water pH and IBA.
Ano de publicação: | 2014
Fonte/Imprenta: | In: INTERNATIONAL HORTICULTURAL CONGRESS, 29., 2014, Brisbane. Abstract book... Brisbane: IHC, 2014.
Idioma: | Português

Conteúdo:

The  propagation  by  cuttings  is  the  most  used  method  to  propagate  blueberries,
providing different results according the cultivar, physical-chemical characteristics of
the  substrate  and  concentration  of  plant  hormones.  The  aim  of  this  study  was,
therefore, to evaluate the effect of indolebutyric acid (IBA) and irrigation water pH in
the  rooting  of  blueberry  hardwood  cuttings.  The  experiment  was  arranged  in  a
randomized complete block split-plot design with four replications. The treatments
consisted of three factors: Cultivar (?Delite? and ?Briteblue?), IBA (0 and 2.000 mg. L -1 )
and irrigation water pH (4.5, 5.5, 6.0 and 6.9 as control). The factor pH was assigned
to main plots and the combination of IBA levels and cultivar to the split-plots (18
cuttings each). The cuttings consisted of segments of primary shoots, with four buds.
Cuttings were treated with IBA and placed for rooting in trays containing fine grain
size Vermiculita ® as substrate, and kept under manual irrigation; supply water had
pH 6.9 and it was corrected with Quimifol P 30®. After 170 days, the cuttings were
assessed for percentage of survival, rooting, with callus formation, number of roots,
number  of  shoots,  and  length  of  the  longest  root.  The  means  observed  for  the
percentage of rooting and number of roots were, respectively, 24.5% and 2.67 cm,
for  ?Briteblue?;  and  10.9%  and  1.82  cm,  for  ?Delite?.  However,  it  was  noticed
significant effect of pH and cultivar for the percentage of cuttings with callus and of
triple interaction for the number of shoots.

Palavras-Chave: | clone; indolebutyric acid; nursery; propagation; seedling quality; Vaccinium ashei.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_34699.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (96590-1) - UPC - PL - DD -  -  -  - DIS