The Genus Salix (Salicaceae) in the Southeastern United States

Argus, George W.

doi:10.2307/25027618

Cited by 84 publications

(66 citation statements)

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“…Natural history of study organisms Willows: S. eriocephala and S. sericea are shrubs that occur in swampy habitats and along streams in the eastern US and Canada (Argus, 1986). These two species differ in various traits that can potentially affect resistance to herbivores.…”

Section: Methodsmentioning

confidence: 99%

“…S. sericea has leaves that are densely covered with trichomes on the lower surface and contain high concentrations of phenolic glycosides (especially salicortin) and low concentrations of condensed tannins (Orians and Fritz, 1995). Throughout their geographic range, S. eriocephala and S. sericea hybridise and co-occur with their hybrids (Argus 1974(Argus , 1986Mosseler and Papadopol, 1989). F 1 hybrids have leaves with a dense covering of trichomes on the lower surface (S. sericea trait) and concentrations of condensed tannins and phenolic glycosides that are intermediate between the concentrations of the two parental species (Orians and Fritz, 1995).…”

Section: Methodsmentioning

confidence: 99%

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Genetic architecture of resistance to aphids and mites in a willow hybrid system

et al. 2004

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Genetic architecture of resistance to aphids and mites in a willow hybrid system

et al. 2004

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“…Alternatively, if some rust pathotypes were specialized on hybrids, then hybrid susceptibility might result because a greater diversity of rust pathotypes could attack hybrid genotypes. Since hybrids of Salix are common in the field in Europe and North America (Argus 1986) it is possible that some Melampsora may specialize on hybrid plants.…”

Section: Discussionmentioning

confidence: 99%

Susceptibility of pure and hybrid willows to isolates ofMelampsora epitea rust

Fritz

Johansson²,

Åström

et al. 1996

Eur J Plant Pathol

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Pure species and F1 hybrid families of Salix viminalis and S. dasyclados were tested for resistance to four single uredinium isolates of Melampsora rust in laboratory experiments using excised leaves. Rust isolates were derived from: S. viminalis, S. dasyclados, a S. viminalis x triandra hybrid, and S. daphnoides. Incidence of infection, number of uredinia per leaf, and numbers of spores per uredinium were measured. As expected, the isolate from S. daphnoides did not infect any of the willow species or hybrids tested. For the other three rust isolates that were tested, the parent from which the isolate was derived was susceptible, the other parent was resistant, and hybrids were intermediate in resistance for incidence and uredinia per leaf. These patterns indicate additive inheritance of 'these resistance traits in hybrids. Numbers of spores per uredinium were similar on the hybrids and the susceptible parent for one rust isolate, suggesting dominant inheritance of this trait in the hybrids.

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“…The common ecological restriction of willows to wetlands and floodplains reflects the critical requirement of moist conditions for seed germination because seeds of many species are viable for only a few weeks. After seedling establishment, constant moisture is not as important to survival for many species (McLeod and McPherson 1973;Argus 1986;Skvortsov 1968Skvortsov , 1999.…”

Section: Ecophysiologymentioning

confidence: 99%