What is a provenance in botany?
What is a provenance in botany?
A ‘provenance’ is a plant population containing a local genetic variation. Local provenance plants are grown from seed collected from healthy plants growing near to and in similar environmental conditions as the planting site, which gives new plants the best chance of survival.
What is a provenance trial?
Tree provenance trials consist of a variety of seed sources (or provenances) planted at several test sites across the range of a species. The resulting plantations are typically measured periodically to investigate provenance performance in relation to abiotic conditions, particularly climate.
What is provenance variation?
Variation of the mean percentage of trees bearing buds and flowers among provenances from different latitudinal divisions may indicate variable reproductive output or temporal variation of flowering.
What is elite tree?
Elite tree – A tree that has been shown by progeny testing to produce superior offspring (See plus tree and candidate tree.) Endemic – A plant or animal species or subspecies native to a small region.
Why is plant provenance important?
On a larger scale, restoring native landscapes through planting local provenance plants is vitally important for preserving the biodiversity unique to a given area, and helping to minimise the impacts of climate change.
What is seed provenance?
Over the last decade, decisions surrounding the provenance, or the geographic origin of a seed source, has sparked a debate whether or not to use local native or nonlocal native seed.
Why provenance testing is important in tree breeding?
Provenance Trials: After selection of suitable species it is important that the most suitable seed source for planting site is selected. This is accomplished by selecting suitable provenances. Provenance is the area on which any stand of tree is growing.
What is species trial?
Provenance trials of native tree species are used to determine whether our tree populations differ in terms of adaptive variation and the scale over which these differences operate.
What are plus trees?
A plus tree is one that is distinctly superior both to certain neighboring trees and to the average of the stand. The trees with which the plus tree is compared are the four largest trees of the same species in the immediate neighborhood, that is, within 25 to 50 meters (23 to 46 yards) from the plus tree.
What is ortet and Ramet?
Ramet- A vegetatively reproduced copy of a plant. Each ramet will have almost precisely the same genotype as the original parent tree, known as the ortet. (See clone and ortet.)
Why is it important to plant native species of local provenance on bushlands?
Why is seed provenance important?
The provenance of tree seed describes its geographical origins. When planting trees of any species, selecting an appropriate provenance is an important decision which can influence tree survival, ‘performance’ (for any given objective), longevity and reproductive potential.