Developing fusiform rust cronartium quercuum f sp fusiforme resistant loblolly pine pinus taeda and slash pine pinus elliottii var elliottii

Powers, H.R.Jr; Kraus, J.F.

Plant Disease 67(2): 187-189


ISSN/ISBN: 0191-2917
Accession: 005130196

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Fusiform rust-resistant selections of loblolly and slash pine were planted in a seed orchard for production of seedlings with high levels of resistance to the diseese. Half of the orchard consists of grafted trees of superior clones and the balance is designed as a seedling seed orchard made up of survivors of artificial inoculation tests. Eventual production should exceed 15 million seedlings annually for use in areas subject to high hazard from fusiform rust.