Zobrazeno 1 - 10
of 214
pro vyhledávání: '"Stephen A. Weller"'
Publikováno v:
PhytoKeys, Vol 247, Iss , Pp 111-121 (2024)
During a survey by the National Tropical Botanical Garden drone team, an enigmatic Schiedea was observed in December 2021on steep, rocky cliff faces of the Waiahulu Valley in the Waimea Canyon of Kaua'i. Subsequently, another survey was conducted in
Externí odkaz:
https://doaj.org/article/23f72a48e78a4f17a5055e5bad374160
Publikováno v:
PhytoKeys, Vol 210, Iss , Pp 135-141 (2022)
In 2016 during a survey for potential fencing of the Ha‘akoa unit on windward Mauna Kea, Hawai‘i Island (Hawaiian Islands) a single plant of the genus Schiedea was discovered. No species of the genus had ever been known to occur in this area, and
Externí odkaz:
https://doaj.org/article/6d976f951612459a9c00cece85c0c224
Autor:
John M. Powers, Roger Seco, Celia L. Faiola, Ann K. Sakai, Stephen G. Weller, Diane R. Campbell, Alex Guenther
Publikováno v:
Frontiers in Plant Science, Vol 11 (2020)
Floral scent often intensifies during periods of pollinator activity, but the degree of this synchrony may vary among scent compounds depending on their function. Related plant species with the same pollinator may exhibit similar timing and compositi
Externí odkaz:
https://doaj.org/article/c861549056a448cb85e4a079e7675c16
Autor:
Diane R. Campbell, Ann K. Sakai, Stephen G. Weller, Theresa M. Culley, Amy K. Dunbar‐Wallis, Allen M. Andres, Tiffany G. Wong, Tam Dang, Bryan Au, Mickey Ku, Andrea R. Marcantonio, Paul J. Ngo, Andrew A. Nguyen, My Hanh Tran, Quoc‐Phong Tran
Publikováno v:
American journal of botany, vol 109, iss 11
PremiseEvolution of separate sexes from hermaphroditism often proceeds through gynodioecy, but genetic constraints on this process are poorly understood. Genetic (co-)variances and between-sex genetic correlations were used to predict evolutionary re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::659303a89de7fe9030e4575dc3bec22c
https://doi.org/10.1002/ajb2.16096
https://doi.org/10.1002/ajb2.16096
Publikováno v:
American journal of botanyREFERENCES. 109(11)
Wild plant species provide excellent examples of qualitative traits that evolve in response to environmental challenges (e.g., flower color, heavy metal tolerance, cyanogenesis, and male sterility). In addition to such discrete characters, a dazzling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::806616b6d3d24384b49b0cbe142c45e9
https://pubmed.ncbi.nlm.nih.gov/36416487
https://pubmed.ncbi.nlm.nih.gov/36416487
Autor:
Patience Mojibade Olorunmaiye, Alfred G.O. Dixon, Friday Ekeleme, Godwin Atser, Stefan Hauser, Adeyemi Olojede, Stephen C. Weller, Sam Korie, David Chikoye
Publikováno v:
Weed Technology. 34:735-747
Weed competition severely constrains cassava root yield in sub-Saharan Africa; thus, good weed control measures, including the use of herbicides, are increasingly important. Herbicide trials were conducted at five locations across eastern, western, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a235d92934f9f4dba9a2f639720309b4
https://doi.org/10.1017/wet.2020.26
https://doi.org/10.1017/wet.2020.26
Publikováno v:
American journal of botanyREFERENCES. 109(2)
Floral scent is a key aspect of plant reproduction, but its intraspecific variation at multiple scales is poorly understood. Sexual dimorphism and temporal regulation of scent can be shaped by evolution, and interpopulation variation may be a bridge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8e30f7e82c79f7533af9f42490b1e16
https://pubmed.ncbi.nlm.nih.gov/35192727
https://pubmed.ncbi.nlm.nih.gov/35192727
Publikováno v:
Weed Science. 67:205-213
Timely results from whole-plant, herbicide-resistant weed screenings are crucial to heighten grower awareness. However, the high degree of physiological dormancy of giant ragweed (Ambrosia trifidaL.) seed exacerbates this process. The most effective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c69af05410413b14433cbe8c77a00d8
https://doi.org/10.1017/wsc.2018.86
https://doi.org/10.1017/wsc.2018.86
Autor:
Jessica Pérez-Alquicira, Olga V. Tsyusko, César A. Domínguez, Francisco Molina-Freaner, Stephen G. Weller
Publikováno v:
Ecology and Evolution. 8:5661-5673
Historical factors such as climatic oscillations during the Pleistocene epoch have dramatically impacted species distributions. Studies of the patterns of genetic structure in angiosperm species using molecular markers with different modes of inherit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6456babf6469317b246d248d1e76a0e6
https://doi.org/10.1002/ece3.4096
https://doi.org/10.1002/ece3.4096
Autor:
Wendy Kishida, David H. Lorence, Stephen G. Weller, Ann K. Sakai, Ken Wood, Michelle Clark, Natalia Tangalin, Timothy Flynn
Publikováno v:
Forest Ecology and Management. 409:518-526
In island ecosystems, where endemic species have long been viewed as competitively inferior and more susceptible to herbivory relative to continental species, the impacts of invasive species may be especially pronounced. The sensitivity of island spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f021da738e81771affc115dc62b8352c
https://doi.org/10.1016/j.foreco.2017.11.023
https://doi.org/10.1016/j.foreco.2017.11.023