Articles
ROOTING SUCCESS OF ROSE CUTTINGS REDUCED BY INFECTION WITH APPLE MOSAIC VIRUS AND PRUNUS NECROTIC RINGSPOT VIRUS
Article number
751_27
Pages
225 – 228
Language
English
Abstract
The ability of rose cuttings from virus-infected stock to root was studied in Rosa hybrida Dr.
Huey, a commonly used rootstock variety.
Stock was infected with Apple mosaic virus (ApMV), Prunus necrotic ringspot virus (PNRSV) and a mixed infection of both ApMV and PNRSV; stock which has indexed negative for virus was used as the control.
Virus infection reduced total percent rooting by an average of 35% as compared to healthy.
Root vigor was also negatively affected by virus infection.
The diameters of the cuttings from one virus treatment consisting of a mixed infection of ApMV + PNRSV were significantly smaller than healthy, but not in the other two virus treatments.
It is possible that in some cases, rooting reduction is an indirect effect, due mainly to a decrease in stem diameter, stored carbohydrates and vigor.
Huey, a commonly used rootstock variety.
Stock was infected with Apple mosaic virus (ApMV), Prunus necrotic ringspot virus (PNRSV) and a mixed infection of both ApMV and PNRSV; stock which has indexed negative for virus was used as the control.
Virus infection reduced total percent rooting by an average of 35% as compared to healthy.
Root vigor was also negatively affected by virus infection.
The diameters of the cuttings from one virus treatment consisting of a mixed infection of ApMV + PNRSV were significantly smaller than healthy, but not in the other two virus treatments.
It is possible that in some cases, rooting reduction is an indirect effect, due mainly to a decrease in stem diameter, stored carbohydrates and vigor.
Authors
D.A. Golino, S.T. Sim, N. Salem, A. Rowhani
Keywords
rootstock, virus effects, ‘Dr. Huey’, rose mosaic
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