Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Frederick J. Ryan"'
Publikováno v:
Biological Invasions. 11:1175-1187
Tumbleweeds (Salsola species, section Kali) are road side and rangeland pest plants throughout the 48 contiguous states in the US. Three described tumbleweed species and two undescribed Salsola taxa occur in California. The known species are Russian
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ef22980cb1fdc4c8379a363f914cc81
https://doi.org/10.1007/s10530-008-9380-5
https://doi.org/10.1007/s10530-008-9380-5
Publikováno v:
Canadian Journal of Botany. 85:224-229
In California, the exotic invasive plant Salsola tragus L. (Russian thistle) has been found to consist of two genetic entities, types A and B. Type A, with chromosome number 2n = 36, was identified as S. tragus s.str., but type B, with 2n = 18, was n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::693e51bd601e178f0ff6cce7b85d82ee
https://doi.org/10.1139/b07-005
https://doi.org/10.1139/b07-005
Publikováno v:
Madroño. 53:244-251
Various Salsola spp. have been introduced to the USA, and some of these are considered noxious or invasive in certain regions. The genus is taxonomically challenging, and recent morphological, cytological, and molecular work has shown that an unknown
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bf573d98f5e7158eb4cbea75e0b5244
https://doi.org/10.3120/0024-9637(2006)53[244:gdosta]2.0.co
https://doi.org/10.3120/0024-9637(2006)53[244:gdosta]2.0.co
Publikováno v:
Biological Control. 30:306-311
Molecular information suggests that Russian thistle ( Salsola tragus L.) in the US may consist of more than one genetic entity. This genetic variation needs to be taken into account when developing agents for biological control of this important weed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5853ca8d305ba0d44d8c063fdea20318
https://doi.org/10.1016/j.biocontrol.2003.12.001
https://doi.org/10.1016/j.biocontrol.2003.12.001
Publikováno v:
Biological Control. 28:222-228
Salsola tragus L. (Russian thistle, Chenopodiaceae), a weed of Central Asian origin, has two biotypes in California, type A and type B. The gall midge Desertovellum stackelbergi Mamaev (Diptera: Cecidomyiidae), which attacks S. tragus in Uzbekistan,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52b97f0388d4e4f1d7b6c555c29d72c4
https://doi.org/10.1016/s1049-9644(03)00068-9
https://doi.org/10.1016/s1049-9644(03)00068-9
Autor:
Debra R. Ayres, Frederick J. Ryan
Publikováno v:
Canadian Journal of Botany. 78:59-67
Genetic variability among accessions of Russian thistle (Salsola tragus L.) from California was investigated using allozymes and DNA-based molecular markers. Aspartate aminotransferase and 6-phosphogluconate dehydrogenase displayed two multienzyme ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e1960eee378cd6a7cfadc89c6d868f0
https://doi.org/10.1139/b99-160
https://doi.org/10.1139/b99-160
Autor:
Frederick J. Ryan, Debra R. Ayres
Publikováno v:
American Journal of Botany. 86:344-353
Wyethia reticulata is an edaphic endemic in the Sierra Nevada foothills. Its sympatric congener, W. bolanderi, is also restricted to the foothills, but has a north‐south range of 275 km, compared to 14 km for W. reticulata. The goals of this study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b215fb576e3d0185f8be074196f1d0e
https://doi.org/10.2307/2656756
https://doi.org/10.2307/2656756
Publikováno v:
Aquatic Botany. 56:203-214
Resource allocation reflects a plant's response to its environment and affects its overall growth and performance in a particular habitat. We measured ash, C, N, and caloric content for various parts of Hydrilla verticillata (L.f.) Royle, Potamogeton
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4aff2ddd63f9f21fa632ab1cd68936f5
https://doi.org/10.1016/s0304-3770(96)01113-8
https://doi.org/10.1016/s0304-3770(96)01113-8
Publikováno v:
Journal of Freshwater Ecology. 8:1-11
Potamogeton pectinatus L., grown in greenhouse cultures, was harvested from three photoperiod treatments (16 h, 10 h, and 16 h switched to 10 h after four weeks) at weekly intervals. Plant weight increased over time, and those plants grown at a 16 h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::973b8126f7fb21dc14b7a0de0db37f4c
https://doi.org/10.1080/02705060.1993.9664718
https://doi.org/10.1080/02705060.1993.9664718
Autor:
David W. Ramming, Frederick J. Ryan
Publikováno v:
HortScience. 40:1069A-1069
The development of grapevines with berries with small seed traces, so-called seedless grapes, is a costly process. Marker assisted selection would save time and money. Adam-Blondin et al. (Vitis 40:147. 2001) demonstrated that a sequence characterize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a40d8b541be69372a06faa70d179bda
https://doi.org/10.21273/hortsci.40.4.1069a
https://doi.org/10.21273/hortsci.40.4.1069a