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Prunus Cultivar: Nemaguard

Cultivar Name: Nemaguard
Type Peach Rootstock
Synonyms FV 234-1
Patent Not Patented
Parentage chance seedling (P. persica x P. davidiana)
Species Prunus persica x P. davidiana
Usage Rootstock
Seed Available Seed available from Foundation Plant Services
Scion Vigor Influence Standard
Soil Adaptation Excellent for well-drained soils. In poorly-drained soil, plant on a hill - very susceptible to wet feet. Poor tolerance to calcareous soil.
Climatic Adaptation fair
Resistance Traits Resistant or tolerant to root-knot nematode. Partly resistant to Lesion nematode. Susceptible to Ring Nematode, Bacterial Canker, Armillaria, and Verticillium wilt. Partly resistant to crown gall.
Graft Compatibility peach, nectarines, apricots, plums, prunes, almonds
Propagation Notes seed, FPS Recommended Method: 36-48 hour soak in water, 90 day stratification in inert damp mix of 50% perlite/50% vermiculite.
Propagation Method Seed
Anchorage Good
Suckering Low
Description Origin USDA in 1959. Selected from seedlings from a seedlot received in 1949 by the US Department of Agriculture (USDA), which was labelled P. davidiana and was eventually released as 'FV 234-1' in 1959 (Brooks and Olmo, 1961). - Refer to link in DESCRIPTION field. Precocious. In NC-140 Trials: 1984, 2001. Main rootstock used in California because it is resistant to root-knot nematode and is compatible with peach, nectarine and plum. It makes a vigorous, productive tree with good fruit size. However, it does not tolerate waterlogged or calcareous soils and is susceptible to many soil pests including ring nematode, verticillium wilt, bacterial canker and armillaria.
References