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Sugar beet germplasm evaluated for rhizomania and storage rot resistance in Idaho, 2011.

Strausbaugh, C.A. and Panella, Leonard W. (2012) Sugar beet germplasm evaluated for rhizomania and storage rot resistance in Idaho, 2011. Plant Disease Management Reports. 6:p. FC086.

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Rhizomania caused by the Beet necrotic yellow vein virus (BNYVV) is a worldwide problem that can lead to loss of tonnage and lower percent sucrose in the field. BNYVV can also reduce the storability of roots. To identify germplasm with resistance to these problems, 14 sugarbeet germplasm lines developed by the USDA-ARS Ft. Collins sugarbeet program were screened in a field experiment arranged in a randomized complete block design with 5 replications. During the growing season plants were evaluated for foliar rhizomania symptoms. At harvest on 29 September, roots were evaluated for rhizomania symptoms and then placed into an indoor commercial sugarbeet storage building in Paul, ID. Foliar symptoms ranged from 0% for one of the resistant checks to 99% for the susceptible check, indicating good separation of germplasm for BNYVV resistance should have been possible in the field study. BNYVV root symptoms ranged from a low of 14 for a resistant check to a high of 25 for one of the susceptible entries at harvest. Fungal growth on the root surface in storage ranged from a low of 21% for an entry with good storability to a high of 100% for the BNYVV susceptible check. Entry 6 ranked among the best entries for all variables indicating it should be investigated further as a potential source of good resistance to these problems. Incorporating better resistance to BNYVV and good storability into commercial sugarbeet cultivars should allow for increased yields in the field and improved recovery of sucrose from roots in storage.

Item Type: Article
NWISRL Publication Number: 1431.
Subjects: Irrigated crops > Sugarbeet > Resistance
Irrigated crops > Sugarbeet > Rhizomania
Irrigated crops > Sugarbeet > Root rots
Irrigated crops > Sugarbeet
Depositing User: Users 6 not found.
Date Deposited: 20 Aug 2012 18:03
Last Modified: 04 Mar 2014 15:13
Item ID: 1466