Fungicides can be used effectively by dip treating propagation material.

Each of them collected propagation material from a different place, and brought them into cultivation under close supervision.

But with adequate inputs and virus free propagation material, oca production can range from 35 to 55 tons per hectare.

Mr President, ladies and gentlemen, this question concerns the bringing into circulation of so-called vegetative propagation material from grapes.

Intensifying light allows cuttings to root and sprout faster, apart from the concern that this could cause the propagation material distress.

This is mainly, because this way a transmission of viruses can be avoided and the storage of the propagation material is pretty cheap.

The FPS offers certified virus-free propagation material.

Its purpose was as a source of food and propagation material for the indigenous people, and also as a supply of provisions for future visiting European vessels.

Yet, a nurseryman seeking to expand his stock told me recently that he had to search for propagation material in parks and arboretums, because so few hollies were available in the trade.

The relevant offices of the Commission have held direct consultations for this revision work with professional associations having relevant knowledge on the subject of propagation material for vines, and specialize in it.

The heart of a Seedy Sunday or Seedy Saturday event is the swapping and sale of seeds or other propagation material for plant cultivars that do not require high-input agriculture.

From the moment a plant is taken from the wild it is subject to human selection pressure - from the selection of the original propagation material to the purchase of the plant in a nursery.

Vegetative propagation, along with seed from the plant, were used to establish a small population on the island's nursery, with some propagation material also being sent to Trinity College Botanic Gardens, Dublin.

Normally, the main way to prevent or manage pineapple black rot disease development is using systemic fungicides treatments on propagation material in the field or at least within six hours of harvest, in the case of post-harvest occurrence.

Virus-free propagation material is available from the Foundation Plant Services (FPS) at the University of California, Davis, and its genetic material is archived at the National Plant Germplasm System.

However, although we agree with most of the amendments to Mr Gklavakis's report, we have reservations and disagree with those amendments which accept genetically modified propagation material, even as rootstock, because it poses risks to human health and the environment.

It is of paramount importance that the producer should be able to obtain healthy propagation material, both to prevent the spread of new diseases and to protect his income, and also to reduce the use of pesticides, which are, as we all know, so harmful to the environment.

The NSW Scientific Committee, an agency of the New South Wales Department of Environment and Climate Change, has noted the importance of identifying these scattered forest fragments in the interest of genetic diversity, as they "may be important sources of propagation material for use in rehabilitation projects."