ABBOTTS . The ovary (with ovules) grows and develops into fruit The stigma and style dry and fall off. The fruit protects the seed. SEED DISTRIBUTION. EXTRA STUFF. Fruit fall down, burst open and seeds are released. Seeds are distributed by: Wind Insects/other animals Water Humans
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Kew millenium seed bank at Wakehurst Place, Sussex.
Seed collections arrive by courier from around the world
The largest seed in the collection is the coco de mer seed and the smallest is a Chilean orchid – there are about 1m seeds in the vial
The seeds, together with pressed plant specimens and vital field data, are brought back to seed banks around the world for processing, research and long-term storage
Cleaning acer seeds. Once at the seed bank, seed is cleaned to reduce bulk and the risk of disease. This requires great care and expertise and to limit damage, much of the work is done by hand using sieves
Seeds in temperature cabinet, testing for viability. Most species have seeds that stay viable when dried to the low moisture levels necessary for long-term storage. However, certain species have seeds that are not tolerant to drying and cannot be conserved long-term in a seed bank. There are other ways to deal with these species
Once the seed has been dried to the required level it is packaged and placed in the cold room where it is kept at a temperature of -20C
The length of time that each collection can be stored for is fixed by the biology of the seed. Depending on the species, seeds may live centuries – and even millennia
Eucalyptus virginii seed. The next phase of the seed bank project is an even more ambitious target of collecting a total of 25% - about 75,000 - of the world's plant species by 2020
Built into a reinforced concrete tunnel
Drilled 70m into the mountain
Aims to store 4.5 million seed samples from
Every country in the world
Store seeds at -180C
Will be viable for thousands of years
Endemic: Organisms that are native and can be found ONLY in that location.
Indigenous: Organisms that are native but can be found elsewhere.
In biogeography, a species is defined as native (or indigenous) to a given region or ecosystem if its presence in that region is the result of only natural processes, with no human intervention.
Every natural organism (as opposed to a domesticated organism) has its own natural range of distribution in which it is regarded as native. Outside this native range, a species may be introduced by human activity; it is then referred to as an introduced species within the regions where it was anthropogenically introduced.
An indigenous species is not necessarily endemic.
In biology and ecology, endemic means exclusively native to the biota of a specific place. An indigenous species may occur in areas other than the one under consideration.
To maintain the supply of these plants it is important to
Have a good supply of seeds