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| Registros recuperados: 27 | |
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| Eujayl, Imad A.; Strausbaugh, C.A.; Chunsheng, Lu. |
| KDH13 is a sugar beet (Beta vulgaris L. ssp vulgaris) doubled haploid line (PI 663862) released as a genetic stock by USDA-ARS in cooperation with the Beet Sugar Development Foundation, Denver, CO. KDH13 is resistant to beet curly top (BCT) caused by Beet curly top virus which is transmitted by the beet leafhopper (Circulifer tenellus Baker). KDH13 was extracted from the BCT resistant C762-17 (PI 560130) parental line that segregates for BCT resistance and genetic male sterility. Intensive phenotypic screening was used for selecting plants from C762-17 that showed no symptoms under fully controlled infection conditions in the greenhouse. Seed from a single plant was used as a donor of floral buds for isolation of unfertilized ovaries to regenerate KDH13... |
| Tipo: Article |
Palavras-chave: Curly top; Genetics; Resistance; Sugarbeet. |
| Ano: 2016 |
URL: http://eprints.nwisrl.ars.usda.gov/1608/1/1566.pdf |
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| Strausbaugh, C.A.; Eujayl, I.A.. |
| Curly top caused by Beet curly top virus 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, 14 sugar beet lines were screened in a disease nursery in 2015. The lines were arranged in a randomized complete block design with six replications. A curly top epiphytotic was created by releasing six viruliferous beet leafhoppers per plant at the four-to six-leaf growth stage on 24 Jun. Foliar symptoms were evaluated on 13 and 20 Jul using a scale of 0-9 (0 = healthy and 9 = dead) in a continuous manner. Curly top... |
| Tipo: Article |
Palavras-chave: Curly top; Resistance; Sugarbeet. |
| Ano: 2016 |
URL: http://eprints.nwisrl.ars.usda.gov/1616/1/1573.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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| Strausbaugh, C.A.; Panella, Leonard W.. |
| Curly top caused by Curtovirus species 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, thirty Plant Introduction (PI) Lines were screened in a disease nursery in 2013. 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 27 Jun. Foliar symptoms were evaluated on 16 Jul using a scale of 0-9 (0 = healthy and 9 = dead) in a continuous manner.... |
| Tipo: Article |
Palavras-chave: Curly top; Sugarbeet. |
| Ano: 2014 |
URL: http://eprints.nwisrl.ars.usda.gov/1535/1/1492.pdf |
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| Strausbaugh, C.A.; Wenninger, E.J.; Eujayl, Imad A.. |
| Curly top in sugar beet caused by Beet curly top virus (BCTV) is an important yield limiting disease that can be reduced via neonicotinoid and pyrethroid insecticides. However the length of efficacy of these insecticides is poorly understood, so a series of field experiments was conducted with the seed treatment Poncho Beta (60 g a.i. clothianidin + 8 g a.i. beta-cyfluthrin/100,000 seed) and foliar treatment Asana (55.48 g a.i. esfenvalerate/ha). A series of four experiments were conducted in 2014 and repeated in 2015 with four treatments (untreated check, Poncho Beta, Asana, and Poncho Beta + Asana) which were arranged in a randomized complete block design with 8 replications. To evaluate efficacy, viruliferous (contain BCTV strains) beet leafhoppers... |
| Tipo: Article |
Palavras-chave: Curly top; Seed treatment; Sugarbeet; Insecticide. |
| Ano: 2016 |
URL: http://eprints.nwisrl.ars.usda.gov/1622/1/1579.pdf |
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| Strausbaugh, C.A.; Gillen, A.M.. |
| Twenty-five experimental sugarbeet hybrids submitted to the official variety trials were evaluated for resistance to Beet curly top virus (BCTV). Hybrids were planted in a commercial sprinkler-irrigated sugarbeet field and exposed to a natural epiphytotic of BCTV. Experimental units were arranged in a randomized complete block design with seven replications. Plots were evaluated for BCTV based on a Disease Index (DI) scale of 0 to 9 (no symptoms to dead) on Sept 14, 2004 by three raters. The moderately severe epiphytotic resulted in uniform disease pressure and significant differences between hybrids for DI, root yield, sugar content, and estimated recoverable sugar. Our disease ratings were positively correlated with (r = 0.632, P < 0.0001)... |
| Tipo: Article |
Palavras-chave: Resistance; Curly top. |
| Ano: 2006 |
URL: http://eprints.nwisrl.ars.usda.gov/1221/1/1193.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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| Panella, Leonard W.; Strausbaugh, C.A.. |
| Thirty 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) in 2009. The curly top evaluation was conducted at the USDA-ARS North Farm in Kimberly, ID which had been in beans in 2008. The field was plowed in the fall, fertilized (75 lb N/A and 75 lb P2O5/A) on 22 Apr 09, sprayed with Ethotron (2 pt/A), and roller harrowed. The germplasm was planted (density of about 143,000 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 three replications. A resistant breeding line from Betaseed, Inc., G6040, was included as a resistant... |
| Tipo: Article |
Palavras-chave: Curly top; Genetics; Sugarbeet. |
| Ano: 2011 |
URL: http://eprints.nwisrl.ars.usda.gov/1419/1/1389.pdf |
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| Panella, Leonard W.; Strausbaugh, C.A.. |
| Fifty sugar beet (Beta vulgaris L.) germplasm lines produced by the USDA-ARS Ft. Collins sugar beet program and two commercial check cultivars [SV2012RR (susceptible) and HM PM90 (resistant)] were screened for resistance to Beet curly top virus (BCTV). The curly top evaluation was conducted at the USDA-ARS North Farm in Kimberly, ID, which had been in barley in 2014. The germplasm was planted (density of 142,560 seeds/A) on May 27. The plots were two rows 10 ft long with 22-in row spacing and arranged in a randomized complete block design with three replications. The fields were sprinkler irrigated, cultivated, and hand weeded as necessary. Plant populations were thinned on June 20 Plants were inoculated at the four- to six-leaf growth stage on June... |
| Tipo: Article |
Palavras-chave: Curly top; Resistance; Sugarbeet. |
| Ano: 2016 |
URL: http://eprints.nwisrl.ars.usda.gov/1617/1/1574.pdf |
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| Strausbaugh, C.A.; Gillen, A.M.; Camp, S.; Shock, C.C.; Eldredge, E.P.; Gallian, J.J.. |
| Sugar beet (Beta vulgaris) varieties were evaluated for disease resistance to curly top to establish if disease ratings made in inoculated nurseries correlated with disease ratings and yield in sugar beet crops exposed to natural disease outbreaks. Cultivars were planted both in inoculated curly top nurseries in Kimberly, ID, and in commercial cultivar trials in irrigated fields near Ontario, OR and Nampa, ID. Plants were evaluated for curly top using a rating scale of 0 (no symptoms) to 9 (dead). Moderate disease pressure in the Ontario (mean rating = 3.8) and Nampa (mean rating = 4.1) fields resulted in significant differences for disease rating, root yield, sugar content, and estimated recoverable sugar among cultivars. Disease ratings from both... |
| Tipo: Article |
Palavras-chave: Curly top. |
| Ano: 2007 |
URL: http://eprints.nwisrl.ars.usda.gov/67/1/1231.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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| Bosland, P.W.; Strausbaugh, C.A.. |
| ‘NuMex Las Cruces’ is a high-yielding, high-heat, cayenne pepper with a maturity similar to that of ‘Large Red Thick’, an early maturing cayenne cultivar. In addition, it possesses resistance to curly top virus, having resistance to at least three Curtovirus species: Beet curly top virus (BCTV; formerly Cal/Logan strain), Beet severe curly top virus (BSCTV; formerly CFH strain), and Beet mild curly top virus (BMCTV; formerly Worland strain). |
| Tipo: Article |
Palavras-chave: Curly top. |
| Ano: 2010 |
URL: http://eprints.nwisrl.ars.usda.gov/1421/1/1391.pdf |
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| Panella, Leonard W.; Strausbaugh, C.A.. |
| Ninety-seven sugar beet (Beta vulgaris L.) germplasm lines from the USDA-ARS Ft. Collins sugar beet program, a resistant control germplasm (1996A008), and three commercial control cultivars [SV2012RR (susceptible), Monohikari (susceptible) and HM PM90 (resistant)] were screened for response to Beet curly top virus (BCTV). The curly top evaluation was conducted at the USDA-ARS North Farm in Kimberly, ID. The plots were two rows 10 ft long with 22-in row spacing and arranged in a randomized complete block design with four replicates. Plants were inoculated at the four- to six-leaf growth stage with approximately six viruliferous beet leafhoppers per plant. The beet leafhoppers were redistributed three times a day during the first two days and then twice... |
| Tipo: Article |
Palavras-chave: Curly top; Sugarbeet. |
| Ano: 2015 |
URL: http://eprints.nwisrl.ars.usda.gov/1609/1/1549.pdf |
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| Panella, Leonard W.; Strausbaugh, C.A.. |
| Seventy sugar beet (Beta vulgaris L.) germplasms released from the USDA-ARS Breeding Program in Fort Collins, Colorado over the last 40 years and 27 experimental germplasm were screened for resistance to Beet severe curly top virus (BSCTV) in 2009. The curly top evaluation was conducted at the USDA-ARS North Farm in Kimberly, ID which had been in beans in 2008. The field was plowed in the fall, fertilized (75 lb N/A and 75 lb P2O5/A) on 22 Apr 09, sprayed with Ethotron (2 pt/A), and roller harrowed. The germplasm was planted (density of about 143,000 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 three replications. A resistant breeding line from Betaseed, Inc., G6040,... |
| Tipo: Article |
Palavras-chave: Curly top; Sugarbeet. |
| Ano: 2010 |
URL: http://eprints.nwisrl.ars.usda.gov/1496/1/1460.pdf |
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| Panella, Leonard W.; Strausbaugh, C.A.. |
| Twenty-two 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 2011. Commercial 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 barley in 2010. The field was plowed both in the fall and the spring, fertilized (80 lb N and 120 lb P2O5/A) on 20 Apr 11, sprayed with Ethotron (2 pt/A), and roller harrowed. The germplasm was planted (density of 142,560 seeds/A) on 16 May. The plots consisted of two rows 10 ft long with 22-in row... |
| Tipo: Article |
Palavras-chave: Curly top; Resistance; Sugarbeet. |
| Ano: 2012 |
URL: http://eprints.nwisrl.ars.usda.gov/1492/1/1456.pdf |
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| Eujayl, Imad A.; Strausbaugh, C.A.. |
| The USDA-ARS sugarbeet research program at Kimberly is focused on discovering novel genes for resistance to beet curly top and other economically important diseases. It is vital in genetics research to develop uniform breeding lines and genetic stocks to study inheritance, gene transfer (through conventional hybridization), and molecular genetics research. This process requires several one-year inbreeding cycles in sugarbeet because the plant is biennial and the public germplasm has much genetic diversity. We have adopted a well-established tissue culture approach to develop a type of pure breeding lines called ‘doubled haploid line’ (DHL) from unfertilized ovules. KDH13 (PI663862) genetic stock was released to public breeders and seed companies by the... |
| Tipo: Article |
Palavras-chave: Curly top; Sugarbeet. |
| Ano: 2012 |
URL: http://eprints.nwisrl.ars.usda.gov/1485/1/1449.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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| Registros recuperados: 27 | |
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