Breeding for Resistance to Pine Wilt Disease

摘要: To cope with pine wilt disease the first resistance breeding program started in western Japan 1978. In this program, resistant Japanese black pines (Pinus thunbergii) and red (P. densiflora) were selected. Subsequently, their progenies have come into wide use as seedlings. Breeding programs are also carried out other parts of Anhui Province China, pines, including Ryukyu luchuensis) Masson massoniana), being The demand for more is increasing. Kyushu region, second-generation that creates stable cuttings has been since 2004. Since to wood nematode (PWN) seems be a polygenic trait, gathering genes single cultivar by crossing clones would make higher.