Author
Bell, Richard |
Submitted to: HortScience
Publication Type: Abstract Only Publication Acceptance Date: 3/31/2010 Publication Date: 8/2/2010 Citation: Bell, R.L. 2010. Pear psylla resistance in breeders' selections. HortScience. 45(8):5216. Interpretive Summary: Technical Abstract: Twenty pear cultivars and breeders’ selections with interspecific pedigrees involving Pyrus ussuriensis and P. pyrifolia crossed with P. communis were assessed for resistance to pear psylla (Cacopsylla pyricola Foerster) using a nymphal feeding antixenosis assay. Four P. ussuriensis x P. communis hybrid selections (NJ B9 R1 T117, NJ A2 R21 T89, NY 10355 and NY 10359) and one P. pyrifolia x P. communis hybrid selection (NJ Rock R25 T238) were significantly less susceptible than Bartlett (P. communis). Fruit size and quality of the resistant selections varied, while inferior to pure P. communis cultivars, and should be valuable genetic resources for the breeding of new pear cultivars with resistance to pear psylla. |