The Uniform Soybean Tests: Northern States 2007 (original) (raw)

Uniform Soybean Tests Northern Region 2008

2018

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.

Uniform Soybean Tests Northern Region 2007

2018

Uniform Soybean Tests Northern Region 2006

2018

The Uniform Soybean Tests: Northern Region 2004

2004

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.

Roundup ready� soybeans and welfare effects in the soybean complex

Agribusiness, 2000

A three-region world model for the soybean complex is developed to evaluate the welfare effects of Roundup Ready (RR) soybean adoption. The structural modeling of the innovation accounts for farmers' adoption incentives and for the observed pricing of RR soybean seeds as a proprietary technology. The calibrated model is solved for various scenarios to evaluate the production, price, and welfare impacts of RR soybean adoption. The United States gains substantially from the innovation, with the innovator capturing the larger share of the welfare gains. US farmers benefit in the base scenario, but would be adversely affected if the RR innovation were to increase yields. Spillover of the new technology to foreign competitors erodes the competitive position of domestic soybean producers, and export of the technology per se may not improve the welfare position of the innovating country. Consumers in every region gain from the adoption of RR soybeans. [JEL Classification: F14, O33, Q16].

The Uniform Soybean Tests: Northern Region 2003

2003

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.

The Uniform Soybean Tests: Northern States 2007 (original) (raw)

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