tree analysis News
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Frankincense tree has not regenerated for the last half century
Frankincense is a resin that is tapped from a dry forest tree in the Horn of Africa, the Arabian peninsula and India. The European market is dominated by frankincense from Ethiopia. But the tree populations are under threat. “We found no frankincense trees younger than half a century”, says Motuma Tolera Feyissa, who defended his PhD thesis on this subject yesterday. Frans Bongers is ...
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Conserving the genetic diversity of Europe’s forests
Conserving genetic diversity is vital to allow populations to adapt in the face of changing conditions. A new study, assessing the conservation of genetic diversity of trees across Europe, has identified areas for improvement that could help maintain the genetic diversity of Europe’s forests. Without a diverse gene pool, whole populations of animals and plants may be unable to adapt to new ...
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Agdia Releases New Molecular Test for Avocado Sunblotch Viroid
Agdia, Inc. (Elkhart, IN) has commercialized a Nucleic Acid Hybridization Assay for Avocado sunblotch viroid (ASBVd). ASBVd is found in avocado growing regions worldwide. Trees that are infected with ASBVd can result in a loss of yield and / or production of unmarketable fruit. However, symptoms are not always present making pro-active testing a critical disease control measure. Agdia's ...
By Agdia, Inc.
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Three new ornamental dogwoods introduced
In the nursery and landscape industries, flowering dogwood (Cornus florida), kousa dogwood (Cornus kousa), and their hybrids are the most popular and economically significant members of the genus Cornus. The deciduous trees are highly valued for their spring display of pink, red, or white bracts, brilliant red fall foliage, and exfoliating bark. In the United States alone, retail and wholesale ...
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Root hydraulic conductance linked to trees` post-transplant recovery
Survival of field-grown trees grown for transplanting into landscapes depends on many factors, such as transplant timing and tree size. Species-specific characteristics also contribute to trees' ability to withstand and survive environmental stresses. In a newly published study researchers report on the relationship between tree roots' hydraulic conductance -- the roots' ability to take up water ...
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Polluted urban soil damages lime trees
The impact of polluted urban soil on trees is highlighted in a recent study from Latvia. The researchers found that high salt levels from de-icing chemicals and nutrient imbalance in soil damaged lime trees growing in the city of Riga. Trees planted in cities are an important part of the urban landscape, providing a range of benefits, from enhancing biodiversity to promoting a feeling of ...
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