Potato clone variation in blackspot and soft rot susceptibility, redox potential, ascorbic acid, dry matter and potassium

Workman, M.; Holm, David G.

doi:10.1007/bf02888975

Cited by 17 publications

(10 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The higher the specific gravity of the samples, the lower the water content (Hegney, 2001). Similarly, Workman and Holm (1984) reported a positive correlation between blackspot susceptibility and dry matter content.…”

Section: Resultsmentioning

confidence: 85%

Non-destructive detection of blackspot in potatoes by Vis-NIR and SWIR hyperspectral imaging

et al. 2016

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 85%

Non-destructive detection of blackspot in potatoes by Vis-NIR and SWIR hyperspectral imaging

et al. 2016

View full text Add to dashboard Cite

“…Machine harvest, handling, and storage of potato tubers can impart pressure and impact injury resulting in tuber blackspot bruise and reduced crop value. Tuber injury can promote premature aging (Workman and Holm, 1984) or elevated levels of respiration (Pisarczyk, 1982) leading to losses in processing quality, decreased seed piece performance, or susceptibility to soft rot (Bartz and Kelman, 1986). Factors that influence bruise incidence and severity include cold tuber temperatures and flaccidity during harvest or handling (Thornton and Timm, 1989) and harvesting practices such as use of padded rollers or optimizing soil conditions for minimal bruise (Brook, 1996).…”

mentioning

confidence: 99%

Enhancing Tuber Calcium Concentration May Reduce Incidence of Blackspot Bruise Injury in Potatoes

Karlsson¹,

Palta²,

Crump³

2006

HortSci

View full text Add to dashboard Cite

Our previous research has provided evidence that in-season calcium applications can increase tuber calcium and improve tuber quality with reduced internal defects.To determine if increasing the tuber calcium concentration also mitigates tuber bruise incidence, five commercially relevant potato (Solanum tuberosum L.) cultivars (ÔRusset BurbankÕ, ÔAtlanticÕ, ÔSnowdenÕ, ÔSuperiorÕ, and ÔDark Red NorlandÕ) were grown during three seasons, 1999-2001. Three split applications of a calcium/nitrogen water soluble blend totaling 168 kgÁha -1 calcium were made starting at hilling. All plots, including controls, received an equal amount of total nitrogen in a season. Tubers were allowed to be bruised during normal machine harvest standard to commercial production in Wisconsin. Over 100 tubers from each replication (5-10 replications/treatment) were cut and examined for the incidences of bruise and internal brown spot. Paired samples of medullary tissue were taken for measuring calcium concentration. As expected, tuber tissue calcium concentration increased significantly, in all cultivars and in all years, with in-season calcium application. Bruise incidence varied among cultivars and seasons. Although tuber calcium concentration varied among seasons, ÔAtlanticÕ and ÔSnowdenÕ consistently had the lowest calcium concentration, whereas ÔSuperiorÕ and ÔDark Red NorlandÕ consistently had the highest calcium concentration. Meta-analysis of pooled data for three years showed that blackspot bruise incidence was significantly reduced with calcium application in ÔAtlanticÕ, ÔBurbankÕ, and ÔSnowdenÕ. On the other hand, ÔDark Red NorlandÕ and ÔSuperiorÕ had low incidence of bruise and were unaffected by calcium applications. Regression analyses of pooled data from all cultivars for three years revealed a significant quadratic relationship between blackspot bruise and tuber tissue calcium as well as between blackspot bruise and internal brown spot. A linear to plateau plot of medullary calcium concentration versus blackspot bruise incidence revealed that bruise incidence is minimized between 200 and 250 mg/kg (dry wt) -1 tuber calcium concentration. To our knowledge, ours is the first study providing evidence for reducing bruise by improving tuber calcium. Variations in the bruise incidences among cultivars generally followed tuber calcium concentration suggesting a genetic control. Given the role of calcium in improved membrane health and enhanced wall structure, and as a modulator of physiological responses, it is not surprising that internal brown spot and bruise incidences are reduced by in-season application to calcium-deficient cultivars.

show abstract

“…Dean et al (1993) reported that blackspot bruise resistance in potato cultivars was correlated with tuber tyrosine content. Workman & holm (1984) reported that blackspot bruising and soft rot susceptibility were positively correlated in five of eight paired comparisons. Blackspot bruising is also related to tissue failure properties, which in turn are heavily influenced by tuber cultivar, temperature, and hydration .…”

Section: Introductionmentioning

confidence: 96%

Effects of specific gravity and cultivar on susceptibility of potato (Solanum tuberosum) tubers to blackspot bruising and bacterial soft rot

Wright¹,

Triggs

Anderson

2005

New Zealand Journal of Crop and Horticultural Science

View full text Add to dashboard Cite

Ten potato (Solanum tuberosum) cultivars were assessed for resistance to bacterial soft rot caused by Erwinia carotovora subsp. atroseptica, and to blackspot bruising. Specific gravities of individual potato tubers varied within each cultivar and between cultivars. Within all 10 cultivars tested, as tuber-specific gravity increased, the severity of bacterial soft rot decreased, and the severity of bruising increased. Among the seven New Zealand-bred cultivars, mean soft rot susceptibilities lay along a continuum, with cultivars having higher mean soft rot losses as mean specific gravity increased. Two of the three overseas cultivars exhibited very different responses from those bred in New Zealand. In contrast, for blackspot bruising, six of the New Zealand-bred cultivars and two overseas cultivars lay approximately on a continuum of increasing mean bruise score as mean specific gravity increased, similar to the within-cultivar relationships. The remaining New Zealand-bred cultivar and the overseas cultivar 'Fianna' were quite different, having much lower m ean bruise scores than predicted by the trend line of the other cultivars. 'Fianna' in particular exhibited both low bruising and low soft rot incidence in this experiment.

show abstract

Potato clone variation in blackspot and soft rot susceptibility, redox potential, ascorbic acid, dry matter and potassium

Cited by 17 publications

References 9 publications

Non-destructive detection of blackspot in potatoes by Vis-NIR and SWIR hyperspectral imaging

Non-destructive detection of blackspot in potatoes by Vis-NIR and SWIR hyperspectral imaging

Enhancing Tuber Calcium Concentration May Reduce Incidence of Blackspot Bruise Injury in Potatoes

Effects of specific gravity and cultivar on susceptibility of potato (Solanum tuberosum) tubers to blackspot bruising and bacterial soft rot

Contact Info

Product

Resources

About