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Prunus Cultivar: Flordaguard

Cultivar Name: Flordaguard
Type Peach Rootstock
Synonyms Fla. 14-11
Patent Not Patented
Parentage Complex parentage of Florida selections tracing to P. davidiana and Okinawa. (see 'Cultivar Description for Public Sites' above).
Species Prunus persica
Usage Rootstock
Seed Available Seed available from Foundation Plant Services
Chill Requirement 300 chill hours required
Climatic Adaptation Flordaguard’ is recommended for low-chill peach, nectarine, and plum production in nonalkaline soils infested with peach root-knot nematodes as well as other types of nematodes
Resistance Traits root-knot nematode Meloidogyne javanica and M. incognita races 1 and 3.
Graft Compatibility peach and nectarine buds show very satisfactory growth
Propagation Notes This rootstock is typically propagated by seed; although outcrosses (with reduced intensity red leaf color in the shoot tips) must be rogued out to ensure peach root-knot nematode tolerance. Flordaguard also can be propagated by softwood cuttings or tissue culture of seed source trees.
Propagation Method Seed
Description Orig. at Agr. Expt. Sta., Univ. of Florida, Gainesville, and introduced in 1990 by W.B. Sherman, P.M. Lyrene, and R.H. Sharpe. Selected in 1976 and tested as Fla. 14-11 Tree: blooms with Flordagold and requires » 300 chill units; long whippy growth; high flower bud set. Leaves: homozygous for red-leaf; reniform petiolar glands. Flowers deep pink and showy. Fruit: flesh yellow; deep red at cavity and on pits; freestone; ripens » 130 days from bloom. Flordaguard originated from six generations from Chico 11 X P. davidiana (Carr.) Franch, C- 26712. Chico 11 was a seedling of Shau Thai, PI 65821 (Sharpe et al. 1969). H91 was homozygous recessive for double petals and red flowers, but its progeny, Fla. 12-9, was single-petaled and pinkflowered, and thus was an outcross rather than self. The red leaf gene was introduced in the fourth generation open-pollination. The red leaf pollen parent was from either (N.J. 5106137 X Okinawa) op or (Okinawa X Rancho 23/32) op
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