Further Comparisons between Infection of Loblolly and Slash Pines by Fusiform Rust After Artificial Inoculation or Planting

摘要

Seedlings from half-diallel crosses, one each of loblolly and slash pines, were used to test the effectiveness of artificial inoculation for predicting field infection by fusiform rust. Each half-diallel cross was among six parents, three of which were rated as 'resistant' and three as 'susceptible' to the fungus. Progenies of resistant slash pine parents showed considerably more resistance than did those of resistant loblolly parents.