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Papers by Scott Abney

United States Department of Agriculture Agricultural Research Service West Lafayette, Indiana, 2007

All programs and services of the U. S. Department of Agriculture are offered on a nondiscriminart... more All programs and services of the U. S. Department of Agriculture are offered on a nondiscriminartory basis without regard to race, national orgin, religion, sex, age, marital status, or handicap. RR refers to Roundup Ready ®. Roundup Ready ® is a registered trademark of Monsanto Technology LLC.

Two or more states cooperatively, e.g. ND(M) North Dakota and Minnesota 9 METHODS Uniform tests a... more Two or more states cooperatively, e.g. ND(M) North Dakota and Minnesota 9 METHODS Uniform tests are planted in multiple-row plots with three or four replications, and the center rows are harvested for yield and seed quality determinations. Preliminary Tests are multiple-row plots with two replications. Usually 15 to 20 feet of row are planted and 12 to 16 feet harvested, to eliminate end-of-row effects. Coefficients of variability are included with all replicated test data. Discretion is used in including data with high CVs in the regional means. If the CV is greater than 15, participants should include the reason, such as disease or environmental conditions. Lines may be heterogeneous for morphological traits the first year in the Uniform Tests but must be pure lines the second year of testing. It is the responsibility of the breeder to purify heterogeneous lines. Generation Composited is the generation after the final single-plant selection, when seeds from plants or rows are composited. Previous Testing is the number of previous years in the same Uniform Test or, in the case of new entries, a reference to the previous year's test, abbreviated to PT IIA for Preliminary Test IIA, for example. Yield is measured after the seeds have been dried to uniform moisture content and is recorded in bushels (60 pounds) per acre. To convert to kilograms/hectare multiply by 67.25. Maturity is the date when 95% of the pods have ripened, as indicated by their mature pod color. Delayed leaf drop and green stems are not considered in assigning maturity. Maturity is expressed as days earlier (-) of later (+) than the average date of the reference variety. To aid in maturity group classification, one earlier (E) and one later (L) check variety are given in the maturity column for each test, or a maturity check from an earlier or later maturity group is included. Current reference and check varieties and the maturity group limits relative to the reference varieties are: Group Reference: Range Early check Late check 11 DISEASE Disease reactions are listed according to "Soybean Disease Survey Standards", March 1960, unless otherwise specified. Disease reaction is scored from 1 (no disease) to 5 (very severe), or in some cases as percent infected or simply as + (present) or 0 (absent). Seed mottling follow the disease severity class rating: Disease severity class rating 1 2 3 4 5 Number of diseased seed in sample 0 1-3% 4-8% 9-19% 20-100% An additional classification to describe the extent of seed coat mottling as M (mild), E (extensive), or S (severe), is included. Pod and stem blight is rated as percent of infected seed on a four-week delayed ("d") harvest sample. The location where the test was made is identified in the column heading, and the letter "a" or "n" signifies artificial or natural infection. Clear-cut and consistent reactions are given by letter instead of number: R = resistant, S = susceptible, I = intermediate, and H = heterogeneous. Natural infection ratings are from agronomic tests in some instances and from special disease plantings in others. Absence of symptoms under natural infection does not necessarily mean high resistance. Abbreviation Disease Pathogen BB Bacterial blight Pseudomonas syringa pv. glycinea BBV Bud blight Tobacco ringspot virus BP Bacterial pustule Xanthomonas campestris pv.

Two or more states cooperatively, e.g. ND(M) North Dakota and Minnesota 9 METHODS Uniform tests a... more Two or more states cooperatively, e.g. ND(M) North Dakota and Minnesota 9 METHODS Uniform tests are planted in multiple-row plots with three or four replications, and the center rows are harvested for yield and seed quality determinations. Preliminary Tests are multiple-row plots with two replications. Usually 15 to 20 feet of row are planted and 12 to 16 feet harvested, to eliminate end-of-row effects. Coefficients of variability are included with all replicated test data. Discretion is used in including data with high CVs in the regional means. If the CV is greater than 15, participants should include the reason, such as disease or environmental conditions. Lines may be heterogeneous for morphological traits the first year in the Uniform Tests but must be pure lines the second year of testing. It is the responsibility of the breeder to purify heterogeneous lines. Generation Composited is the generation after the final single-plant selection, when seeds from plants or rows are composited. Previous Testing is the number of previous years in the same Uniform Test or, in the case of new entries, a reference to the previous year's test, abbreviated to PT IIA for Preliminary Test IIA, for example. Yield is measured after the seeds have been dried to uniform moisture content and is recorded in bushels (60 pounds) per acre. To convert to kilograms/hectare multiply by 67.25. Maturity is the date when 95% of the pods have ripened, as indicated by their mature pod color. Delayed leaf drop and green stems are not considered in assigning maturity. Maturity is expressed as days earlier (-) of later (+) than the average date of the reference variety. To aid in maturity group classification, one earlier (E) and one later (L) check variety are given in the maturity column for each test, or a maturity check from an earlier or later maturity group is included. Current reference and check varieties and the maturity group limits relative to the reference varieties are: Group Reference: Range Early check Late check 11 DISEASE Disease reactions are listed according to "Soybean Disease Survey Standards", March 1960, unless otherwise specified. Disease reaction is scored from 1 (no disease) to 5 (very severe), or in some cases as percent infected or simply as + (present) or 0 (absent). Purple seed stain and seed mottling follow the disease severity class rating: Disease severity class rating 1 2 3 4 5 Number of diseased seed in sample 0 1-3% 4-8% 9-19% 20-100% An additional classification to describe the extent of seed coat mottling as M (mild), E (extensive), or S (severe), is included. Pod and stem blight is rated as percent of infected seed on a four-week delayed ("d") harvest sample. The location where the test was made is identified in the column heading, and the letter "a" or "n" signifies artificial or natural infection. Clear-cut and consistent reactions are given by letter instead of number: R = resistant, S = susceptible, I = intermediate, and H = heterogeneous. Natural infection ratings are from agronomic tests in some instances and from special disease plantings in others. Absence of symptoms under natural infection does not necessarily mean high resistance. Abbreviation Disease Pathogen BB Bacterial blight Pseudomonas syringa pv. glycinea BBV Bud blight Tobacco ringspot virus BP Bacterial pustule Xanthomonas campestris pv.

Charcoal rot is a widely distributed disease of soybean (Figure 1). It is also called summer wilt... more Charcoal rot is a widely distributed disease of soybean (Figure 1). It is also called summer wilt or dry weather wilt because it often occurs when plants are under heat and drought stresses. These stresses can also occur in irrigated soybeans if water is withheld during critical plant growth stages after the beginning of flowering. Despite its wide distribution, charcoal rot is less of a concern for soybean of the Midwest than in some other regions because drought is less common here. But the disease can develop if August and September are hot and dry.

Crop Science, 2006

Registration of 'Moon Cake' Vegetable Soybean 'Moon Cake' vegetable soybean [Glycine max (L.) Mer... more Registration of 'Moon Cake' Vegetable Soybean 'Moon Cake' vegetable soybean [Glycine max (L.) Merr.] (Reg. no. CV-481, PI 632905) was developed by the USDA-ARS at Beltsville, MD, and released on 6 Feb. 2003. Moon Cake is a large-seeded maturity group V cultivar of tall height intended for use as edamame. Moon Cake was not developed by genetic engineering and is susceptible to the glyphosate [N-(phosphonomethyl)glycine] herbicide. Mooncake was bred for tall height to reduce its vulnerability to competition with weeds. Tall plant height may be especially valuable to organic vegetable soybean producers. Following harvest of green pods for use as a vegetable, the remaining leaves and stems may provide forage for livestock and prove useful for farmers with diversified farming operations. Moon Cake is an F 4-derived line from the cross OR5-12-1T 3 Disoy (Weber, 1967). Mooncake was developed by pedigree selection of the F 2 , F 3 , and F 4 progeny for large seed size, tall plant growth, and lodging resistance at Beltsville, MD, in 1997, 1998, and 1999. OR5-12-1T is a tall, tawny pubescent sister line of the forage soybean cultivar Tyrone (Devine et al., 1998). Both OR5-12-1Tand Tyrone were derived from the cross PA4-11 g1 3 Ripley (Cooper et al., 1990). PA4-11 g1 was selected as a forage type from the four way cross [Wilson 6 3 Forrest] 3 [Perry 3 L76-0253] (Bernard, 1968; Hartwig and Epps, 1973; Weiss, 1953). L76-0253 is an F6 segregate of the cross Williams 3 PI229358 (Bernard and Lindahl, 1972). Moon Cake has white flowers and gray pubescence. Seeds are elongate with shiny lustrous yellow seed coats and light buff colored hila. Mature seeds of Moon Cake produced at Princess Anne, MD, weighed 27 g per 100 seeds compared with 14.9 g for Hutcheson and 16.1 g for Tara. Mature seeds of Moon Cake had 43.8% protein and 18.6% oil compared with 44.0% protein and 17.6% oil for Hutcheson and 44.8% protein and 16.2% oil for Tara. Moon Cake is an indeterminate maturity group V cultivar and matures earlier than both Hutcheson and Essex (Buss et al., 1988; Smith and Camper, 1973). The sucrose concentration in green seeds of Moon Cake harvested forty days after the initiation of flowering averaged 101 g kg 21 of seed on a dry weight basis while the maturity group V cultivar Kahala (PI 355067S;

This dataset contains tables prepared for the 2009 Uniform Soybean Tests Northern Region Report.

This study is a floristics survey of the aquatic habitats and aquatic vascular plants in southern... more This study is a floristics survey of the aquatic habitats and aquatic vascular plants in southern Illinois (See fig. 1). After a discussion of aquatic situations there is appended a check-list of aquatic vascular plants from southern Illinois. The southern tip of Illinois forms a wedge-shaped area bounded by the Mississippi River to the west and the Ohio River to the east. The mainland is traversed by a number of rivers and streams, the most notable of which are the Cache and Big Muddy Rivers. Numerous man-made and natural lakes and ponds occur, the largest being concentrated in the Williamson County area. Limestone sinks are common in a few areas. Swamps and swampy woods are frequent in the extreme southern tip of Illinois, and these harbor plants which are rare or absent in other parts of the state. In addition, a few other less important aquatic habitats may be found.

Journal of Economic Entomology, 1976

ABSTRACT Field observations of soybean mosaic (SMV) gave evidence that a vector was responsible f... more ABSTRACT Field observations of soybean mosaic (SMV) gave evidence that a vector was responsible for spread from soybean plant to soybean plant. Ten species of insects commonly found on soybeans did not transmit SMV to healthy Bansei soybean plants. Aphids were not commonly found on soybeans but were occasionally observed probing on them. Seven aphid species colonizing weeds within the soybean fields were tested for their potential to transmit SMV. Dactynotus ambrosiae (Thomas), Macrosiphum euphorbiae (Thomas), Myzus persicae (Sulzer), and Rhopalosiphum maidis (Fitch) positively transmitted SMV from SMV infected soybeans to healthy soybeans. R. maidis and D. ambrosiae have not previously been reported as vectors of SMV.

Proceedings of the Integrated Crop Management Conference

United States Department of Agriculture Agricultural Research Service West Lafayette, Indiana, 2007

Two or more states cooperatively, e.g. ND(M) North Dakota and Minnesota 9 METHODS Uniform tests a... more Two or more states cooperatively, e.g. ND(M) North Dakota and Minnesota 9 METHODS Uniform tests are planted in multiple-row plots with three or four replications, and the center rows are harvested for yield and seed quality determinations. Preliminary Tests are multiple-row plots with two replications. Usually 15 to 20 feet of row are planted and 12 to 16 feet harvested, to eliminate end-of-row effects. Coefficients of variability are included with all replicated test data. Discretion is used in including data with high CVs in the regional means. If the CV is greater than 15, participants should include the reason, such as disease or environmental conditions. Lines may be heterogeneous for morphological traits the first year in the Uniform Tests but must be pure lines the second year of testing. It is the responsibility of the breeder to purify heterogeneous lines. Generation Composited is the generation after the final single-plant selection, when seeds from plants or rows are composited. Previous Testing is the number of previous years in the same Uniform Test or, in the case of new entries, a reference to the previous year's test, abbreviated to PT IIA for Preliminary Test IIA, for example. Yield is measured after the seeds have been dried to uniform moisture content and is recorded in bushels (60 pounds) per acre. To convert to kilograms/hectare multiply by 67.25. Maturity is the date when 95% of the pods have ripened, as indicated by their mature pod color. Delayed leaf drop and green stems are not considered in assigning maturity. Maturity is expressed as days earlier (-) of later (+) than the average date of the reference variety. To aid in maturity group classification, one earlier (E) and one later (L) check variety are given in the maturity column for each test, or a maturity check from an earlier or later maturity group is included. Current reference and check varieties and the maturity group limits relative to the reference varieties are: Group Reference: Range Early check Late check 11 DISEASE Disease reactions are listed according to "Soybean Disease Survey Standards", March 1960, unless otherwise specified. Disease reaction is scored from 1 (no disease) to 5 (very severe), or in some cases as percent infected or simply as + (present) or 0 (absent). Purple seed stain and seed mottling follow the disease severity class rating: Disease severity class rating 1 2 3 4 5 Number of diseased seed in sample 0 1-3% 4-8% 9-19% 20-100% An additional classification to describe the extent of seed coat mottling as M (mild), E (extensive), or S (severe), is included. Pod and stem blight is rated as percent of infected seed on a four-week delayed ("d") harvest sample. The location where the test was made is identified in the column heading, and the letter "a" or "n" signifies artificial or natural infection. Clear-cut and consistent reactions are given by letter instead of number: R = resistant, S = susceptible, I = intermediate, and H = heterogeneous. Natural infection ratings are from agronomic tests in some instances and from special disease plantings in others. Absence of symptoms under natural infection does not necessarily mean high resistance. Abbreviation Disease Pathogen BB Bacterial blight Pseudomonas syringa pv. glycinea BBV Bud blight Tobacco ringspot virus BP Bacterial pustule Xanthomonas campestris pv.

Crop Science, 2006

This dataset contains tables prepared for the 2009 Uniform Soybean Tests Northern Region Report.

Journal of Economic Entomology, 1976

Proceedings of the Integrated Crop Management Conference