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Living Carbon, an American biotechnology company founded in 2019, has developed genetically engineered hybrid poplar trees aimed at enhancing carbon sequestration. These trees have been modified to improve photosynthetic efficiency, enabling them to capture more carbon dioxide (CO₂) and produce greater woody biomass than conventional trees.
Populus × canescens, the grey poplar, is a hybrid between Populus alba (white poplar) and P. tremula (common aspen). It is intermediate between its parents, with a thin grey downy coating on the leaves , which are much less deeply lobed than the leaves of P. alba .
The selection of increasingly fast-growing cultivars has at least halved the revolution in poplar plantations.. Transgenic poplars are being or have been tested, in North America and in France in particular, with poplars intended for energy production and poplars potentially destined for the paper industry, [3] [4] as well as with short rotation coppice or very short rotation coppice, with ...
The hybrid with Populus alba (white poplar), known as grey poplar, Populus × canescens, is widely found in Europe and central Asia. Hybrids with several other aspens have also been bred at forestry research institutes in order to find trees with greater timber production and disease resistance (e.g. P. tremula × P. tremuloides , bred in ...
Many of the cottonwoods grown commercially are the hybrid of eastern cottonwood and black poplar, Populus × canadensis (hybrid black poplar or Carolina poplar). Cottonwood bark is often a favorite medium for artisans. The bark, which is usually harvested in the fall after a tree's death, is generally very soft and easy to carve.
Several hybrids between balsam poplars (particularly western balsam poplar) and the cottonwoods have also been developed for lumber production or for use as shade trees. These hybrids are selected for exceptionally fast growth and disease resistance. Poplars are also of potential use for biofuels because of their fast growth
Populus is a genus of 25–30 species of deciduous flowering plants in the family Salicaceae, native to most of the Northern Hemisphere.English names variously applied to different species include poplar (/ ˈ p ɒ p l ər /), aspen, and cottonwood.
Populus × jackii (balm-of-Gilead, [1] bam bud, [2] bom-a-gilly [2]) is the hybrid between balsam poplar, Populus balsamifera, and the eastern cottonwood, Populus deltoides, occurring occasionally where the two parental species' ranges overlap.