Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
권호 표지

Screening of Scab (Venturia nashicola) Resistance Germplasms in Pyrus species

배 검은별무늬병 저항성 육종재료 탐색

Shin, Il-Sheob;Hyeon, Ik-Hwa;Hwang, Hae-Sung;Hong, Sung-Sik;Cho, Kang-Hee;Cho, Hyeon-Mo
신일섭;현익화;황해성;홍성식;조강희;조현모

  • Published : 20040000
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Abstract

To select scab resistant breeding materials, the degree of resistance of 171 cultivars including 24 species, which have collected in all temperate regions of the world, mainly Pyrus pyrifolia, P. ussuriensis, P. communis and P. bretschneideri were examined with conidial suspension (1x10^5 conidia/ml) four weeks after artificial infection. Scab resistance could be classified into four groups. Most P. aromatica, P. betulaefolia, P. calleryana, P. dimorphophylla, P. lindleyi, P. pashia, P. phaeocarpa, P. sinkiangensis, P. sohayakinensis, and P. communis including its hybrid cultivars except ‘Mustafabey’ were evaluated highly resistant (HR) with no symptom. Local cultivars such as ‘Hwangsilri’ and ‘Yeongmokri’ included in P. ussuriensis, and ‘Kinchaku’ and ‘Chanxixueli’ belonging to P. pyrifolia　showed resistant (R) with yellow or necrotic lesions on several leaves. However most cultivars of P. bretschneideri such as ‘Yali’　and ‘Cili’, P. pyrifolia such as ‘Niitaka’, ‘Whangkeumbae’, and P. ussuriensis as ‘Bongri’ were designated as being susceptible (S) having sparsely sporulating lesions on some leaves and highly susceptible (HS) with abundance of sporulating lesions on several leaves.

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References

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