A cold-hardy, fire-blight-resistant pear line used as a rootstock or windbreak. Origin: in Brookings, S.D., by N.E. Hansen, South Dakota Agr. Expt. Sta. Introd. in 1926. Pyrus ussuriensis; original seed gathered in 1924 about 50 miles east of Harbin, North China, by Professor N.E. Hansen. The Harbin pear is usually propagated from seed, so the name is given to the seedlings. Tree: hardy; used in South Dakota as a rootstock; some seedlings show fire blight resistance; good windbreak tree since the foliage and branching are dense. Fruit: quality poor.