Breeding Peaches for Root-knot Nematode Resistance1

Sharpe, R. G.; Hesse, C. O.; Lownsberry, B. F.; Hansen, C

doi:10.21273/jashs.94.3.209

Cited by 45 publications

(7 citation statements)

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“…Considerable success has been achieved in breeding and selecting for resistance to root knot nematodes [Meloidogyne incognita (Kofoid and White) Chitwood and M. javanica (Treub) Chitwood], as recently reviewed by Sharpe et al (20). Resistance to root lesion nematode [Pratylenchus penetrans (Cobb) Filip.…”

Section: Pest Resistancementioning

confidence: 99%

“…Resistance to root lesion nematode should be investigated because it is one of the most important components of the peach replant complex at least in Ontario and perhaps in neighbouring states as well. Techniques that have been successfully used in breeding for resistance to root knot nematodes should have application in testing for resistance to root lesion nematode (20).…”

Section: Pest Resistancementioning

confidence: 99%

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Breeding Peach Rootstocks for Canada and the Northern United States

Layne

1974

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Peach seedling rootstocks [Prunus persica (L.) Batsch] have been and continue to be the most important roostocks used for peaches in North America. In the North Central Region of the United States, Simons and Carlson (21) surveyed commercial nurseries in 1966 and 1967 and reported that 97.7% of the peaches were propagated on peach seedling understock. The principal seedling rootstock cultivars were ‘Lovell’, ‘Halford’, ‘Red Leaf and ‘Suncling’, accounting for 95.8% of the propagated trees. The remaining 2.3% of the trees were propagated on P. armeniaca L., P. tomentosa Thunb., P. besseyi Bailey, P. hortulana Bailey, and P. insititia L. cv. St. Julian A. Of these, 1.2% of the trees were on P. besseyi which was used for its dwarfing ability.

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Section: Pest Resistancementioning

confidence: 99%

Section: Pest Resistancementioning

confidence: 99%

Breeding Peach Rootstocks for Canada and the Northern United States

Layne

1974

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“…large size, and red-blushed exocarp has led to the intensive use of relatively few culti vars and a restriction in the germplasm base (24). Peach genotypes with resistance to nematodes (25), brown rot (10), gummosis (19), peach tree borer (4) leaf curl (1), and aphids (15) and exhibiting significantly higher levels of cold hardiness in terms of rapid defoliation in the fall, flower bud and xylem midwinter hardiness, and delayed bloom in the spring have been identified. In general, these genotypes produce fruit of commer cially unacceptable quality.…”

Section: Characteristics Of Fruit From Highand Low-quality Peach Cult...mentioning

confidence: 99%

Characteristics of Fruit from High- and Low-quality Peach Cultivars

Robertson

Meredith

Scorza

1988

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The chemical composition and sensory acceptability of two low-quality (‘Bailey’ and ‘Boone County’) and two high-quality (‘Jefferson’ and Selection B612615) peach genotypes were compared. The high-quality fruit were firmer and much larger than low-quality fruit. The most striking difference between high- and low-quality peaches was that the low-quality fruit contained about seven times more total phenolics. Glucose and sorbitol were at higher levels in low-quality fruit, whereas fructose was higher in the high-quality genotypes. Sensory data substantiated the classification of the cultivars into high- and low-quality fruit. ‘Jefferson’ and B612615 peaches were rated between acceptable and good after ripening, whereas ‘Bailey’ and ‘Boone County’ were rated unacceptable. The flavor of the low-quality cultivars was described as bitter and astringent with a strong aftertaste. The high polyphenolic content, which has been associated with the astringent flavor of fresh peaches, may partially explain the poor flavor of the low-quality fruit.

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“…Root-knot nematode resistance has been the most extensively researched problem of rootstocks in southern U.S. (10,25,28). A comparison of growth and fruiting on resistant and susceptible stocks with and without preplant fumigation emphasized the need for a resistant stock (6).…”

Section: Disease and Nematode Resistancementioning

confidence: 99%

“…In Florida, perhaps because of fewer winter-kill problems, 'Nemaguard' has performed well and is still currently recommended. We have progressed well in finding peaches resistant to the nematode reported attacking 'Nemaguard' (25). Selected seedlings are in the third or fourth generation from crosses involving 'Okinawa' or 'Shau Thai' (P.I.…”

Section: Disease and Nematode Resistancementioning

confidence: 99%