Relationship of calcium nutrition to internal brown spot of potato tubers and sub-apical necrosis of sprouts

1986 ◽  
Vol 63 (2) ◽  
pp. 87-97 ◽  
Author(s):  
K. C. Tzeng ◽  
A. Kelman ◽  
K. E. Simmons ◽  
K. A. Kelling
Keyword(s):  
Brown Spot ◽  
Potato Tubers ◽  
Calcium Nutrition ◽  
Internal Brown Spot ◽  
Relationship Of ◽  
Apical Necrosis

The dependence of internal brown spot development upon calcium fertility in potato tubers

1996 ◽  
Vol 39 (1) ◽  
pp. 165-178 ◽  
Author(s):  
Nora L. Olsen ◽  
Larry K. Hiller ◽  
Loretta J. Mikitzel
Keyword(s):  
Brown Spot ◽  
Potato Tubers ◽  
Internal Brown Spot

Relationships Between Internal Brown Spot and Skin Roughness in Potato Tubers Under Field Conditions

2018 ◽  
Vol 61 (4) ◽  
pp. 327-339
Author(s):  
Francesco Raimo ◽  
Alfonso Pentangelo ◽  
Catello Pane ◽  
Bruno Parisi ◽  
Giuseppe Mandolino
Keyword(s):  
Field Conditions ◽  
Brown Spot ◽  
Potato Tubers ◽  
Internal Brown Spot

scholarly journals INTERNAL BROWNING IN `ATLANTIC' POTATO TUBERS AS AFFECTED BY CALCIUM, IRRIGATION, AND STRAW-MULCHING

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1093d-1093
Author(s):  
C.R Roberts ◽  
Dean E. Knavel ◽  
John Snyder ◽  
Terry Jones ◽  
Dave Spalding
Keyword(s):  
Brown Spot ◽  
Potato Tubers ◽  
Straw Mulching ◽  
Internal Brown Spot ◽  
Affected Tissue ◽  
Internal Browning

Internal brown spot (IBS) was found consistently in the `Atlantic' cultivar at Lexington in 1967, 1968 and 1989, and at Owensboro and Quicksand, KY in 1987, Treatments of foliar and soil applied CaSO4 in 1987, soil-applied CaSO4 in 1988, and straw mulching in 1989 did not reduce IBS. Irrigation increased IBS because of larger tubers and increased Ca content of plants as compared with non-irrigated plants. Tubers showing IBS had higher Ca content in affected tissue than in non-affected tissue. Both IBS and Ca content of leaves increased as the plants aged.

The incidence of bacterial blights of French bean (Phaseolus vulgaris) in East Gippsland, Victoria

1978 ◽  
Vol 18 (91) ◽  
pp. 318
Author(s):  
DLS Wimalajeewa ◽  
RJ Nancarrow
Keyword(s):  
Phaseolus Vulgaris ◽  
Severe Disease ◽  
French Bean ◽  
Brown Spot ◽  
French Beans ◽  
Halo Blight ◽  
Growing Seasons ◽  
Relationship Of ◽  
The Relationship

The incidence of common blight, halo blight and brown spot on French beans was surveyed in the Bairnsdale-Lindenow and Orbost areas in East Gippsland during the 1975-76 and 1976-77 growing seasons. Common blight and halo blight were severe only during late January to March, and occurred largely on mature crops. Common blight was the more severe disease in the Orbost area whereas halo blight was more severe in the Bairnsdale-Lindenow area. Brown spot occurred throughout the season on crops of all ages in both areas but was more severe in the Bairnsdale-Lindenow area. The relationship of weather to the incidence of bacterial blights in the two areas is discussed. It is inferred that losses due to common blight and halo blight could be considerably minimized by timing the planting of crops to harvest them by mid-February.

Factors influencing incidence of internal brown spot in Russet Burbank potatoes

1984 ◽  
Vol 61 (6) ◽  
pp. 335-343 ◽  
Author(s):  
W. M. Iritani ◽  
L. D. Weller ◽  
N. R. Knowles
Keyword(s):  
Russet Burbank ◽  
Brown Spot ◽  
Internal Brown Spot ◽  
Factors Influencing

scholarly journals Enhancing Potato Tuber Calcium Concentration Through Calcium Application May Reduce the Incidence of Internal Brown Spot and Hollow Heart

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 759A-759 ◽  
Author(s):  
Matthew D. Kleinhenz ◽  
Christopher C. Gunter ◽  
Jiwan P. Palta
Keyword(s):  
Calcium Concentration ◽  
Sandy Loam ◽  
Hollow Heart ◽  
Calcium Nitrate ◽  
Brown Spot ◽  
Internal Quality ◽  
Internal Defects ◽  
Internal Brown Spot ◽  
Liquid Calcium ◽  
Cultivar Atlantic

A direct comparison was made of several commercially available calcium sources applied on two different schedules for their effectiveness in increasing tuber medullary and periderm tissue calcium concentrations in 170–284-g tubers of the cultivar Atlantic grown on a Plainfield sandy loam. Plots (6 x 3 m) were arranged in a CR design in 1993 and a RCBD in 1994 (eight replications). Paired measurements of tuber Ca concentration and internal quality (±hollow heart, ±internal brown spot) were made on individual tubers produced in plots with no additional or additional Ca (168 kg Ca/ha) supplied from either gypsum, liquid calcium nitrate, or NHIB. Two Ca and N application schedules were compared: 1) application at emergence and hilling (non-split), 2) application at emergence, hilling, and 4 and 8 weeks after hilling (split). All plots received 224 kg H/ha balanced with ammonium nitrate. In general, tuber yield and grade were unaffected by treatments in 1993 and 1994, but overall percent A-grade was lowest and percent B-grade highest in 1993 compared with 1994 data. In 1993, all treatments receiving Ca had greater mean tuber medullary and periderm tissue Ca concentration values and a greater percentage of tubers with an elevated Ca concentration compared with non-Ca-supplemented controls. The overall incidence of tuber internal defects was 5% in 1993. All split schedule treatments receiving Ca showed 0% internal defects. In contrast, nearly 8% of the tubers from control plots showed some defect. The medullary tissue Ca concentration of 65% of the tubers having either defect was below the median value of Ca concentration for the entire experiment in 1993. Similar evaluations are underway for the 1994 crop. These data suggest that tuber calcium concentration may be related to the incidence of these internal defects.

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