The Relative Importance of Precipitation and Sugar Content in Potato Peel for the Detection of the Incidence of Common Scab (<i>Streptomyces scabies</i>)

Goto, Kazushige

doi:10.1080/00380768.1985.10557449

Cited by 7 publications

(1 citation statement)

References 14 publications

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“…Maintenance of soil moisture close to field capacity by irrigation during the first 4-5 weeks of tuber formation can greatly reduce scab incidence (Martin 1923, Lapwood et al 1973. However, irrigation can increase the incidence and severity of other soil-borne diseases (Loria 1991) and does not always reduce scab (Goto 1985, Doering-Saad et al 1992.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of common scab in potato tubers after foliar treatment with glycinebetaine under glasshouse conditions

Tuomola

Rita

Kuisma³

et al. 1996

AFSci

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A single foliar spray with 2.5 mM glycinebetaine (GB) was applied on potato (Solatium tuberosum L.) cvs. Matilda, Sabina and Saturna grown in a sand bed infested with Streplomyces scabies (Thaxter) Waksman & Henrici at tuber initiation. A period of drought was maintained after GB treatment to enhance scab infection. Logit models were used to compare scab incidence in all harvested tubers (n = 622) and the type of scab in the symptomatic tubers (n = 382), whereas the tuber surface areas covered with scab lesions were compared using ANOVA. A 10 g increase in tuber weight increased the odds of scab incidence by 11.3%. Scab incidence was lowest in Sabina and highest in Matilda. Raised scab and superficial scab were common in all cultivars, but pitted scab developed only in a few tubers of Sabina and Matilda. Among the scabby tubers, the incidence of raised scab was highest in Sabina and lowest in Saturna. The mean surface area covered with scab was 32.8% in Matilda, 11.7% in Saturna and 7.5% in Sabina. Treatment with GB slightly reduced the severity of scab symptoms, as shown by the reduction in the proportion of tubers with raised scab among the scabby tubers (odds 0.60). No effect on the incidence of scab or the tuber area covered with scab lesions was detected following GB treatment.

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Section: Introductionmentioning

confidence: 99%