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| Registros recuperados: 114 | |
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| Eujayl, Imad A.; Strausbaugh, C.A.. |
| Rhizomania caused by Beet necrotic yellow vein virus (BNYVV) and storage losses are serious sugar beet production problems. To identify sugar beet germplasm lines with resistance to BNYVV and storage rots, 11germplasm lines from the USDA-ARS Kimberly sugar beet program were screened. The lines were grown in a sugar beet field infested with BNYVV and one treated with Telone II (18 gpa) in Kimberly, ID during the 2015 growing season in a randomized complete block design with 4 replications. At harvest on 7 October 2015, roots were dug and evaluated for symptoms of rhizomania and also placed in an indoor commercial sugar beet storage building. After 126 days in storage, samples were evaluated for surface fungal growth. Roots for entries from the RZ field... |
| Tipo: Article |
Palavras-chave: Rhizomania; Storage; Sugarbeet. |
| Ano: 2016 |
URL: http://eprints.nwisrl.ars.usda.gov/1625/1/1582.pdf |
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| Strausbaugh, C.A.; Eujayl, Imad A.; Rearick, E.; Foote, P.. |
| Thirty-two transgenic (glyphosate resistant) and six conventional commercial sugar beet cultivars were evaluated in a commercial sprinkler-irrigated sugar beet field near Rupert, ID where winter wheat was grown in 2006. The field trial relied on natural infection for rhizomania development. The plots were planted on 3 Apr 07 to a density of 142,560 seeds/A, and thinned to 47,520 plants/A on 23 May. Plots were four rows (22-in. row spacing) and 24 ft long. The experimental design was a randomized complete block design with four replications per entry. The crop was managed according to standard cultural practices. The roots were mechanically topped and the center two rows were collected with a mechanical harvester on 26 Sep. At harvest the roots were... |
| Tipo: Article |
Palavras-chave: Sugarbeet. |
| Ano: 2008 |
URL: http://eprints.nwisrl.ars.usda.gov/1286/1/1263.pdf |
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| Strausbaugh, C.A.; Wenninger, E.J.; Eujayl, Imad A.. |
| Curly top in sugar beet is a serious problem that is caused by Beet curly top virus and other closely related species and transmitted by the beet leafhopper. In order to find a means of reducing curly top in sugar beet, 15 combinations of insecticide seed (Poncho, Poncho Beta, and Poncho Votivo) and foliar (Asana, Cyazypyr, Lorsban, Mustang, Scorpion, and Sivanto) treatments were evaluated versus an untreated check during the 2012 and 2013 growing seasons. An epiphytotic was created by releasing viruliferous beet leafhoppers 58 to 59 days after planting. The foliar sprays were applied 6 to 7 days before and again 6 to 8 days after leafhopper release. Seed treatments (active ingredient: clothianidin) were able to reduce symptoms by 26 to 42% and increase... |
| Tipo: Article |
Palavras-chave: Sugarbeet. |
| Ano: 2014 |
URL: http://eprints.nwisrl.ars.usda.gov/1541/1/1498.pdf |
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| Panella, Leonard W.; Strausbaugh, C.A.. |
| Twenty-six wild beet (Beta vulgaris subsp. maritima (L.) Arcang) accessions from the Beta collection of the USDA-ARS National Plant Germplasm System were screened for resistance to Beet severe curly top virus (BSCTV) and other closely related Curtovirus species in 2010. The curly top evaluation was conducted at the USDA-ARS North Farm in Kimberly, ID which had been in beans in 2009. The field was disked in the spring, fertilized (160 lb P2O5/A) on 7 Apr 09, sprayed with Ethotron (2 pt/A), and roller harrowed. The germplasm was planted (density of 142,560 seeds/A) on 18 May. The plots were two rows 10 ft long with 22-in row spacing and arranged in a randomized complete block design with two replications. A resistant breeding line from Betaseed, Inc., G6040,... |
| Tipo: Article |
Palavras-chave: Curly top; Sugarbeet. |
| Ano: 2011 |
URL: http://eprints.nwisrl.ars.usda.gov/1495/1/1459.pdf |
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| Strausbaugh, C.A.; Wenninger, E.J.; Eujayl, Imad A.. |
| Curly top in sugarbeet can result in severe yield losses and is caused by Beet severe curly top virus (BSCTV) and other closely related Curtovirus spp. which are vectored by the beet leafhopper. Neonicotinoid seed treatments (Cruiser, NipsIt, and Poncho) have been shown to be an effective supplement to host resistance, but measures to extend control beyond the duration of seed treatment efficacy needs to be investigated. In 2012, a field study was arranged in a randomized complete block design with 8 replications and planted with the cultivar B-42. The 16 treatments included untreated and Poncho Beta treated seed with and without 6 foliar insecticides (applied 7 days before and 6 days after release of viruliferous beet leafhopper) and just Poncho and... |
| Tipo: Article |
Palavras-chave: Seed treatment; Sugarbeet; Insecticide. |
| Ano: 2013 |
URL: http://eprints.nwisrl.ars.usda.gov/1524/1/1451.pdf |
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| Panella, Leonard W.; Strausbaugh, C.A.. |
| Seventeen sugar beet (Beta vulgaris L.) lines from the USDA-ARS Ft. Collins sugar beet program were screened for resistance to Beet severe curly top virus (BSCTV) and other closely related Curtovirus species in 2012. Commercial sugar beet cultivars Monohikari and HM PM90 were included as susceptible and resistant checks, respectively. The curly top evaluation was conducted at the USDA-ARS North Farm in Kimberly, ID which has Portneuf silt loam soil and had been in alfalfa in 2011. The field was plowed in the fall and in the spring, fertilized (90 lb N and 110 lb P2O5/A) on 16 Apr 12, sprayed with Ethotron (2 pt/A), and roller harrowed. The germplasm was planted (density of 142,560 seeds/A) on 21 May. The plots were two rows 10 ft long with 22-in row... |
| Tipo: Article |
Palavras-chave: Curly top; Sugarbeet. |
| Ano: 2013 |
URL: http://eprints.nwisrl.ars.usda.gov/1528/1/1487.pdf |
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| Strausbaugh, C.A.; Eujayl, Imad A.; Rearick, E.; Foote, P.. |
| Rhizomania caused by Beet necrotic yellow vein virus (BNYVV) and storage losses are serious sugar beet production problems. To identify sugar beet cultivars with resistance to BNYVV and evaluate storability, 31 commercial cultivars were screened by growing them in a sugar beet field infested with BNYVV in Kimberly, ID during the 2011 growing season in a randomized complete block design with 4 replications. At harvest on 18 October 2011, roots were dug and evaluated for symptoms of rhizomania and also placed in an indoor commercial sugar beet storage building. Storage samples were evaluated for fungal growth known to correlate with sucrose loss. Depending on cultivar, surface root discoloration (rot and fungal growth) ranged from 1 to 14%. Overall, the... |
| Tipo: Article |
Palavras-chave: Rhizomania; Storage; Sugarbeet. |
| Ano: 2013 |
URL: http://eprints.nwisrl.ars.usda.gov/1481/1/1446.pdf |
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| Strausbaugh, C.A.. |
| Controlling sucrose loss in sugarbeet storage has been an industry goal since the 1950s. Sugarbeet roots utilize sucrose for energy to maintain themselves. Dessication from wind and sun or too much rain and microbial activity can negatively influence stored roots, increasing respiration and the buildup of impurities. Factors such as scalping, impacts and wounding during harvest and transport, mud and weeds in piles, and unusually high and low temperature can also lead to sucrose loss. Disease and drought stress during production can also predispose roots to sucrose loss in storage. In particular, rhizomania caused by Beet necrotic yellow vein virus has been shown to compromise the storability of roots allowing for significant sucrose... |
| Tipo: Article |
Palavras-chave: Storage; Sugarbeet. |
| Ano: 2009 |
URL: http://eprints.nwisrl.ars.usda.gov/1329/1/1306.pdf |
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| Strausbaugh, C.A.. |
| Storing sugarbeets, in piles, under ambient con- ditions, in production areas with mild climates, allows for longer and more productive factory campaigns. In southern Idaho, approximately one-third of the roots are directly processed, one-third are held in short-term storage, and one-third are held in long-term storage (greater than 90 days). Some beets in long-term storage will be held up to 150 days, leaving roots sus- ceptible to a number of negative influences. Extreme temperature fluctuations, excessive moisture, restricted air flow (snow, soil, weeds, and rotted roots), microbial development, res- piration rate, and buildup of impurities can all negatively impact sucrose recovery. In addition to disease and water-related problems... |
| Tipo: Article |
Palavras-chave: Storage; Sugarbeet. |
| Ano: 2010 |
URL: http://eprints.nwisrl.ars.usda.gov/1362/1/1339.pdf |
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| Strausbaugh, C.A.. |
| Sugar beet root rots are not only a concern because of reduced yields, but can also be associated with losses in storage. Our primary sugar beet root rot disease problem in the Amalgamated production area is Rhizoctonia root rot. However, this rot frequently only penetrates a short distance past the surface of the root before a bacterial complex stops the fungus and continues the rot process. This rot complex leads to direct yield loss at harvest time along with additional costs in factory processing. When rotted roots make it into storage piles, they have been shown to compromise surrounding healthy roots. A recent end-of-harvest storage pile survey of 74 to 76% of the piles at receiving stations in Treasure Valley and Magic Valley has identified... |
| Tipo: Article |
Palavras-chave: Root rots; Sugarbeet. |
| Ano: 2014 |
URL: http://eprints.nwisrl.ars.usda.gov/1539/1/1496.pdf |
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| Strausbaugh, C.A.; Eujayl, Imad A.; Foote, P.. |
| The Rhizoctonia-bacterial root rot complex continues to be a concerning problem in sugar beet production areas. To investigate resistance to this complex in 26 commercial sugar beet cultivars, field studies and greenhouse studies with mature roots from the field were conducted with Rhizoctonia solani AG-2-2 IIIB strains and Leuconostoc mesenteroides. Based on means for the 26 cultivars in the 2010 and 2011 field studies, fungal rot ranged from 0 to 8%, bacterial rot ranged from 0 to 37%, total rot ranged from 0 to 44%, and surface rot ranged from 0 to 52%. All four rot variables resulted in significant (P < 0.0001) cultivar differences. Based on regression analysis, strong positive relationships (r2 from 0.6628 to 0.9320; P < 0.0001) were present... |
| Tipo: Article |
Palavras-chave: Root rots; Sugarbeet; Bacteria. |
| Ano: 2013 |
URL: http://eprints.nwisrl.ars.usda.gov/1475/1/1440..pdf |
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| Strausbaugh, C.A.; Panella, Leonard W.. |
| Curly top caused by Beet curly top virus (BCTV) is a widespread disease problem vectored by the beet leafhopper in semiarid sugar beet production areas. Host resistance is the primary defense against this problem, but resistance in commercial cultivars is only low to intermediate. In order to identify novel sources of curly top resistance, twenty-four plant introduction (PI) lines were screened in a disease nursery in 2014. The lines were arranged in a randomized complete block design with three replications. A curly top epiphytotic was created by releasing approximately 6 viruliferous beet leafhoppers per plant at the four- to six-leaf growth stage on 23 Jun. Foliar symptoms were evaluated on 16 Jul using a scale of 0-9 (0 = healthy and 9 = dead) in a... |
| Tipo: Article |
Palavras-chave: Curly top; Resistance; Verticillium wilt. |
| Ano: 2015 |
URL: http://eprints.nwisrl.ars.usda.gov/1588/1/1546.pdf |
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| Durrin, J.S.; Nikolaeva, O.V.; Strausbaugh, C.A.; Karasev, A.V.. |
| Beet leafhopper-transmitted curly top virus is a serious problem in many different crops in the semiarid western U.S., including sugar beet, tomatoes and beans. Curly top is caused by a genetically diverse complex of phloem-limited curtoviruses. Due to the phloem restriction of curtoviruses and the lack of a convenient laboratory host-vector system for curly top virus propagation and purification, no commercial immunodetection tests are available for curtoviruses. Routine diagnostics for curly top relies either on visual symptoms or PCR tests. Lack of an ELISA test system is one of the factors hampering development and screening of the curly top resistant germplasm in, for instance, sugar beet and bean breeding programs. To fill in this gap, we developed... |
| Tipo: Article |
Palavras-chave: Curly top; Sugarbeet. |
| Ano: 2010 |
URL: http://eprints.nwisrl.ars.usda.gov/1389/1/1364.pdf |
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| Strausbaugh, C.A.; Eujayl, Imad A.. |
| The Rhizoctonia-bacterial root rot complex in sugarbeet caused by Rhizoctonia solani and Leuconostoc mesenteroides can cause significant yield losses. To investigate the impact of different tillage systems on this complex, field studies were conducted from 2009 to 2011. Split blocks with conventional and strip tillage as main plot treatments were arranged in a randomized complete block design with four replications. Within main plots, there were seven treatments (non-inoculated check and six R. solani AG-2-2 IIIB strains). Regardless of tillage, the roots responded in a similar manner for fungal rot (conventional 8% versus strip 7%), bacterial rot (26% versus 34%), total rot (33% versus 41%), neighboring roots infected (1.7 roots versus 1.5 roots),... |
| Tipo: Article |
Palavras-chave: Root rots; Sugarbeet; Bacteria. |
| Ano: 2012 |
URL: http://eprints.nwisrl.ars.usda.gov/1472/1/1437.pdf |
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| Strausbaugh, C.A.; Neher, Oliver T.; Rearick, E.; Eujayl, Imad A.. |
| Root rots in sugar beet storage can lead to million dollar losses because of reduced sucrose recovery. Thus, studies were conducted to establish better chemical control options and a better understanding of the fungi involved in the rot complex. A water check and three fungicides (Mertect, Propulse, and Stadium) were investigated for their ability to control fungal rot on sugar beet roots held in long term storage during both the 2012 and 2013 storage seasons. At the end of September into October, roots were collected on five subsequent weeks, treated, and placed on top of a commercial indoor storage pile until early February. Both Propulse and Stadium performed well, by reducing fungal growth and rot on roots versus the check by an average of 84 to... |
| Tipo: Article |
Palavras-chave: Root rots; Storage; Sugarbeet. |
| Ano: 2015 |
URL: http://eprints.nwisrl.ars.usda.gov/1607/1/1565.pdf |
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| Strausbaugh, C.A.; Olsen L, Nora; Frazier J, Mary; Wambolt, C. |
| Preventing sucrose losses in storage is important to the economic viability of the sugar beet industry. In an effort to establish additional measures for reducing sucrose losses in storage, ten fungicide and/or biological treatments were evaluated on sugar beet roots in a commercial sugar beet storage building for their ability to limit fungal growth on roots harvested 2 Oct. Six of the treatments were applied as a direct spray to roots, but two treatments were applied as a cold fog and two others were applied as a thermal fog. The treated eight-beet root samples were arranged in a randomized complete block design with 6 replications on top of the commercial sugar beet pile inside a storage building. Roots were evaluated for fungal growth, root rot,... |
| Tipo: Article |
Palavras-chave: Resistance; Storage; Sugarbeet. |
| Ano: 2015 |
URL: http://eprints.nwisrl.ars.usda.gov/1603/1/1561.pdf |
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| Strausbaugh, C.A.; Gallian, J.J.; Camp, S.; Foote, P.; Gillen, A.M.. |
| Curly top of sugarbeets caused by Beet curly top virus (BCTV) was widespread from southeastern Oregon to southcentral Idaho in 2004. Curly top first became a serious threat to sugarbeet production in southern Idaho in 1919. By the time the first resistant variety was released in 1935, BCTV had almost eliminated the sugarbeet industry (2). Today this disease is largely managed through the use of resistant varieties. Early planting and the use of systemic insecticides (phorate, aldicarb, and imidicloprid) will also help limit curly top (1,2,4). |
| Tipo: Conference or Workshop Item |
Palavras-chave: Curly top. |
| Ano: 2005 |
URL: http://eprints.nwisrl.ars.usda.gov/958/1/1166.pdf |
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| Registros recuperados: 114 | |
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