Resistance to the gall mite and American gooseberry mildew in black currants in relation to season of leafing out期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Resistance to the gall mite and American gooseberry mildew in black currants in relation to season of leafing out

Authors:	Elizabeth Keep

Affiliation:	(1) East Malling Research Station, East Malling, ME19 6BJ Maidstone, Kent, England

Abstract:	Summary In black currant (Ribes nigrum) backcross progenies segregating for resistance to the gall mite, Cecidophyopsis ribisWestw. (gene Ce from Ribes grossularia L.), and to American gooseberry mildew, Sphaerotheca mors-uvae (Schw.) Berk. (gene Sph₃from R. glutinosum), significant differences in season of leafing out occurred between the resistant and susceptible classes. The data are consistent with the hypothesis that two additive genes, Lf₁and Lf₂, controlled season of leafing out and that Ce and Sph₃ were linked with Lf₁.

Keywords:	Ribes nigrum black currant Cecidophyopsis ribis gall mite Sphaerotheca mors-uvae American gooseberry mildew season inheritance genes Ce Sph₃ Lf₁ Lf₂
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