Effects associated with graft-transmissible agents found in the peach variety 'Ta Tao 5'
Abstract
The peach variety ‘Ta Tao 5’ is host to at least three graft-transmissible agents. Extraction and characterization of these agents indicates that they are variants of Peach latent mosaic viroid (PLMVd), Apple chlorotic leaf spot virus (ACLSV) and a previously uncharacterized Foveavirus referred to as Asian prunus virus 1 (APV1). Each of these agents are utilized separately, in defined combinations and in concert in a field study designed to identify their grafttransmissibility and consequent contribution to phenological changes in the peach varieties ‘Springprince’ and ‘Juneprince.’ Field data record variations in bloom date, vegetative growth, and fruiting in both varieties tested. Further, such phenological variation associated with ‘Ta Tao 5’ differs significantly from artificial combinations of inoculants. The use of ‘Ta Tao 5’ as an inoculant source to manipulate growth and development of peach trees is unique when compared with other sources.Keywords: Prunus persica, stone fruit, bloom delay, CGRMV, RT-PCR, trichovirus
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2010-09-30
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