نتایج جستجو برای: plant collections
تعداد نتایج: 426356 فیلتر نتایج به سال:
We investigated the individual and combined effects of elevated CO2 concentration and fertilization on aboveground growth of three poplar species (Populus alba L. Clone 2AS-11, P. nigra L. Clone Jean Pourtet and P. x euramericana Clone I-214) growing in a short-rotation coppice culture for two growing seasons after coppicing. Free-air carbon dioxide enrichment (FACE) stimulated the number of sh...
Amazonia is the most biodiverse rainforest on Earth, and the debate over how many tree species grow there remains contentious. Here we provide a checklist of all tree species collected to date, and describe spatial and temporal trends in data accumulation. We report 530,025 unique collections of trees in Amazonia, dating between 1707 and 2015, for a total of 11,676 species in 1225 genera and 14...
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The New Zealand Institute for Plant and Food Research Limited (PFR) supports a large kiwifruit breeding program that includes more than twenty Actinidia species. Almost all the accessions are held as field collections across range of locations, though not plants at multiple locations. An in vitro collection was established upon arrival Pseudomonas syringae pv. Actinadiae-biovar 3 2010. value an...
With the threat of new plant diseases on the increase, plant disease epidemiology requires research on pathogen vector movement. Here, releases were performed in planted potato fields of different ages and canopy structures, located in the Texas Panhandle, to evaluate the range of movement of the potato psyllid Bactericera cockerelli (Sulc.). This insect is a known causative agent of psyllid ye...
Editor's Note: This research report is presented here with the author’s permission but should not be cited or quoted without the author’s consent. Rockefeller Archive Center Research Reports Online is a periodic publication of the Rockefeller Archive Center. Edited by Ken Rose and Erwin Levold under the general direction of the Center's Executive Director, Darwin H. Stapleton, Research Reports ...
The Florida harvester ant, Pogonomyrmex badius collects the seeds of many plant species and stores them in underground nest chambers for later consumption. Seeds taken from multiple nests in 1989, 2014 and 2015 were separated by size and species and identified through published keys, comparison with herbarium specimens and with identified seed collections. Harvester ants stored at least 58 spec...
Reliable prediction of orthology is central to comparative genomics. Approaches based on phylogenetic analyses closely resemble the original definition of orthology and paralogy and are known to be highly accurate. However, the large computational cost associated to these analyses is a limiting factor that often prevents its use at genomic scales. Recently, several projects have addressed the r...
The German Federal ex situ Genebank of Agricultural and Horticultural Crop Species is the largest collection of its kind in the countries of the European Union and amongst the 10 largest collections worldwide. Beside its enormous scientific value as a safeguard of plant biodiversity, the plant genetic resources maintained are also of high importance for breeders to provide new impulses. The com...
PROBLEM: The use of eelgrass (Zostera marina) seeds is increasingly being recognized as a viable option for both smalland large-scale restoration projects. Although methods for handcollecting, processing and storing eelgrass seeds have advanced to match the scale of collections, the number of seeds collected has limited the scale of restoration efforts, as well as the scale of ecologically rele...
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