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Proceedings of the International Plant Propagator's Society

Vol. 8

Title:
SOME BREEDING OBJECTIVES FOR THE IMPROVEMENT OF MAHONIA AND BERBERIS

Author:
Toru Arisumi

pp: 43-46

Abstract:
The two closely related genera of Berberidaceae, Mahoma and Berberis, comprise a large group of useful ornamental shrubs. According to Rehder (4) there are about 50 species of Mahonia found in North and Central America and in East and South Asia, and about 175 species of Berberis found mostly in East and Central Asia and South America, with a few in North America, North Africa, and Europe. Many species in these genera are susceptible to some of the rust fungi (Puccinia graminis) of cereals, acting as alternate hosts in the life cycles of these fungi. For this reason the cultivation and distribution of rust-susceptible barberries and mahonias are prohibited in 19 states within or near the cereal growing regions of this country. Fortunately, there are about 30 species of barberries and 9 species of mahonias that are rust resistant and safe for cultivation in these states (5). This group of rust-resistant species includes many diverse and attractive types Suitable for use in a breeding

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