Article

The effect of shading of stock plants on rhizogenesis in stem cuttings of Berberis thunbergii ‘Red Rocket’

Acta Physiologiae Plantarum (impact factor: 1.64). 05/2012; 28(6):567-575. DOI:10.1007/s11738-006-0052-8

ABSTRACT In order to improve vegetative propagation of Berberis thunbergii ‘Red Rocket’, stock plants were subjected to shading and IBA treatment, as well as to the application of two commercially
available rooting powders. Spraying stock plants with IBA 24 hours prior to cutting harvest gave the effect comparable to
the use of rooting powders. Reduction of light intensity by 50% and 96% of ambient prior to harvest of cuttings improved rooting.
Positive effect of shading results in changes in shoot anatomy, i.e. a weaker sclerenchyma development. Enhanced rooting in cuttings from shoots grown under reduced light intensity was accompanied
by a decrease in the concentration of soluble proteins and by an increase in total chlorophyll content while the concentration
of total soluble sugars remained unaffected.

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Keywords

anatomy
 
Berberis thunbergii ‘Red Rocket’
 
decrease
 
effect comparable
 
IBA 24 hours
 
light intensity
 
Positive effect
 
shading results
 
soluble proteins
 
Spraying stock plants
 
total chlorophyll content
 
total soluble sugars
 
unaffected
 
weaker sclerenchyma development