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Registros recuperados: 27
Primeira ... 12 ... Última
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Beet curly top resistance in germplasm from the USDA-ARS Ft. Collins program, 2014 NWISRL
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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Beet curly top resistance in USDA-ARS Ft. Collins Germplasm, 2011 NWISRL
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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Beet curly top resistance in USDA-ARS Ft. Collins Germplasm, 2012 NWISRL
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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Beet curly top resistance in USDA-ARS Kimberly germplasm lines, 2015 NWISRL
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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Beet curly top resistance in USDA-ARS plant introduction lines, 2014. NWISRL
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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Beet curly top resistance in USDA-ARS Plant Introductions, 2012 NWISRL
Panella, Leonard W.; Strausbaugh, C.A..
Thirty sea beet (Beta vulgaris subsp. maritima (L.) Arcang) and beet (Beta vulgaris subsp. vulgaris L.) plant introduction (PI) 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 2012. Commercial cultivars Monohikari and HM PM90 and Betaseed, Inc. germplasm line G6040 were included as susceptible and resistant checks. 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...
Tipo: Article Palavras-chave: Curly top; Sugarbeet.
Ano: 2013 URL: http://eprints.nwisrl.ars.usda.gov/1529/1/1488.pdf
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Imprime registro no formato completo
Beet curly top resistance in USDA-ARS Plant Introductions, 2013 NWISRL
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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Beet curly top resistance of released germplasm from the USDA-ARS Program at Fort Collins, CO, 2009 NWISRL
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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Imprime registro no formato completo
Beet curly top resistance of USDA-ARS National Plant Germplasm System Plant Introductions, 2009. NWISRL
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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Imprime registro no formato completo
Beet curly top resistance of USDA-ARS National Plant Germplasm System Plant Introductions, 2010 NWISRL
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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Controlling severe curly top in sugarbeet NWISRL
Strausbaugh, C.A.; Eujayl, I.A..
Controlling curly top in sugarbeet has been industry priority in the western United States since the 1920s. Curly top is a virus disease that is vectored by the beet leafhopper. If the beet leafhopper moves into commercial fields early in the season, virus is more likely to be transmitted to sugarbeet plants at an early growth stage. However, the plants are more susceptible to the virus at early growth stages. Thus even if the plants contain host resistance, they sustain considerable damage if infected at an early growth stage. In order to supplement host resistance insecticide seed treatments were investigated previously and proven to be effective under low to moderate disease pressure. In the current study under high disease pressure (6...
Tipo: Article Palavras-chave: Curly top; Sugarbeet.
Ano: 2011 URL: http://eprints.nwisrl.ars.usda.gov/1486/1/1450.pdf
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Curly top survey in the Western United States NWISRL
Strausbaugh, C.A.; Wintermantel, W.M.; Gillen, A.M.; Eujayl, Imad A..
Tipo: Article Palavras-chave: Curly top.
Ano: 2008 URL: http://eprints.nwisrl.ars.usda.gov/1296/1/1273.pdf
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Evaluation of commercial sugar beet hybrids for resistance to curly top in Malheur County, OR, 2005 NWISRL
Strausbaugh, C.A.; Gillen, A.M..
Commercial sugar beet hybrids were evaluated for resistance to Beet severe curly top virus in a furrow-irrigated sugar beet field near Ontario, OR where curly top had been a problem in previous years. The field trial relied on natural infection and was planted on 6 Apr. Plots were planted to a density of 285,120 seeds/A, and thinned to 40,731 plants/A. Plots were four rows wide (22 in. between rows) and 23 ft long. The experimental design was a randomized complete block with eight replications. The crop was managed according to standard cultural practices. The weather during the growing season was normal except for above average temperatures in Mar and Aug and above average precipitation in Apr and May. Disease pressure was uniform and moderately...
Tipo: Article Palavras-chave: Resistance; Curly top.
Ano: 2006 URL: http://eprints.nwisrl.ars.usda.gov/1222/1/1194.pdf
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Evaluation of commercial sugarbeet hybrids for resistance to beet curly top in Canyon County, ID, 2004 NWISRL
Camp, S.; Foote, P.; Strausbaugh, C.A.; Gillen, A.M..
Tipo: Article Palavras-chave: Resistance; Curly top.
Ano: 2005 URL: http://eprints.nwisrl.ars.usda.gov/1214/1/1151.pdf
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Evaluation of experimental sugar beet hybrids for resistance to curly top in Malheur County, OR, 2005 NWISRL
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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Imprime registro no formato completo
Evaluation of experimental sugarbeet hybrids for resistance to beet curly top in Canyon County, ID, 2004 NWISRL
Strausbaugh, C.A.; Gillen, A.M.; Camp, S.; Foote, P..
Tipo: Article Palavras-chave: Resistance; Curly top.
Ano: 2005 URL: http://eprints.nwisrl.ars.usda.gov/1215/1/1152.pdf
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Germplasm Release: Tissue Culture-Derived Curly Top-Resistant Genetic Stock NWISRL
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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Immunodetection of Two Curtoviruses Infecting Sugar Beet NWISRL
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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Influence of host resistance and insecticide seed treatments on curly top in sugar beets NWISRL
Strausbaugh, C.A.; Gillen, A.M..
Tipo: Article Palavras-chave: Resistance; Curly top; Insecticide.
Ano: 2006 URL: http://eprints.nwisrl.ars.usda.gov/41/1/1191.pdf
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Length of efficacy for control of curly top in sugar beet with seed foliar insecticides NWISRL
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
Registros recuperados: 27
Primeira ... 12 ... Última
 

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