Author： DONG Xing-Guang TIAN Lu-Ming CAO Yu-Fen
Publisher： Editorial Office of Journal of Plant Genetic Resources
ISSN： 1672-1810
Source： Journal of Plant Genetic Resources, Vol.13, Iss.4, 2012-10, pp. : 571-576
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Abstract
The resistance to pear scab of 197 pear cultivars in National Germplasm Resources Garden was evaluated by artificial inoculation of Venturia inaequalis. The results showed that the morbidity of different pear varieties varied widely. Chinese white pear cultivarsP. bretschneideri Rehd.and sand pear cultivarsP. pyrifolia Burm.f.Nakaiwere the most susceptible to scab, Ussurian cultivarsP. ussuriensis Maxim.and Pyrus hybrid cultivars were the second most susceptible to scab, Xinjiang pear cultivarsP. sinkiangensis Yüwere resistant to scab, common pear cultivars P. communis L.were the most resistant to scab. The disease index in pear variety distribution was analyzed. Huangjitui, Shuaili, Suanli, Jinxiang, and a number of resistant resources were screened and the disease susceptibility results between natural occurrence and artificial inoculation was compared.
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