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  • Journal Articles, USDA Authors, Peer-Reviewed (90)[remove]
Displaying items 1 - 10 of 90 start over

1. A Canadian bison isolate of Anaplasma marginale (Rickettsiales: Anaplasmataceae) is not transmissible by Dermacentor andersoni (Acari: Ixodidae), whereas ticks from two Canadian D. andersoni populations are competent vectors of a U.S. strain

Description:
Includes references
Author:
Scoles, G.A. , Mcelwain, T.F. , Rurangirwa, F.R. , Knowles, D.P. , Lysyk, T.J.
Subject:
bison , Anaplasma marginale , strains , geographical distribution , Dermacentor andersoni , ticks , disease vectors , vector competence , disease transmission , bovine anaplasmosis , Canada , Saskatchewan , Alberta , British Columbia , Idaho , United States
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2006

2. A first assessment of mitochondrial DNA variation and geographic distribution of haplotypes in Hessian fly (Diptera: Cecidomyiidae)

Description:
Includes references
Author:
Johnson, A.J. , Schemerhorn, B.J. , Shukle, R.H.
Subject:
Mayetiola destructor , insect pests , mitochondrial DNA , ribosomal DNA , nucleotide sequences , sequence alignment , sequence homology , haplotypes , genetic variation , genetic distance , phylogeny , population genetics , geographical distribution , zoogeography , biotypes , Wolbachia , United States , Canada , Mediterranean region , Asia , New Zealand
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

3. A leucine to proline mutation in puroindoline b is frequently present in hard wheats from northern Europe

Description:
Includes references
Author:
Lillemo, M. , Morris, C.F.
Subject:
Triticum aestivum , winter wheat , wheat , leucine , proline , plant proteins , genes , endosperm , cultivars , germplasm , landraces , mutation , genotype , phenotype , spring wheat , Northern European region , Europe , China , Latin America , United States , Canada , Africa
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2000

4. A method for combining United States and Canadian bull evaluations

Description:
Includes references.
Author:
Wiggans, G.R. , VanRaden, P.M. , Powell, R.L.
Subject:
dairy bulls , Holstein , progeny testing , milk yield , accuracy , mathematical models , statistical analysis , Canada , United States
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1992

5. A molecular linkage map with associated QTLs from a hulless x covered spring oat population

Description:
Includes references
Author:
De Koeyer, D.L. , Tinker, N.A. , Wight, C.P. , Deyl, J. , Burrows, V.D. , O'Donoughue, L.S. , Lybaert, A. , Molnar, S.J. , Armstrong, K.C. , Fedak, G.
Subject:
Avena sativa , oats , hybrids , varieties , seeds , plant morphology , chromosome mapping , genetic markers , amplified fragment length polymorphism , restriction fragment length polymorphism , random amplified polymorphic DNA technique , linkage groups , quantitative trait loci , agronomic traits , protein content , seed oils , beta-glucans , carbohydrate content , genotype-environment interaction , epistasis , phenotypic variation , United States , Canada
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

6. A taxonomic reevaluation of Ovatus mentharius (van der Goot) (Hemiptera: Aphididae)

Description:
Includes references
Author:
Miller, G.L. , Halbert, S.E. , Foottit, R.G.
Subject:
Aphididae , insect morphology , morphometry , descriptions , insect taxonomy , taxonomic keys , introduced species , host plants , Mentha , geographical distribution , Ovatus crataegarius , United States , Canada
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2007

7. Accuracy of foreign dairy bull evaluations in predicting United States evaluations for yield

Description:
Includes references
Author:
Powell, R.L. , Sanders, A.H. , Norman, H.D.
Subject:
dairy bulls , sire evaluation , genetic improvement , progeny testing , dairy cows , milk yield , somatic cell count , international organizations , prediction , accuracy , reliability , United States , Netherlands , Canada
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2004

8. Advances in tillage research in North American cropping systems

Description:
Includes references
Author:
Reicosky, D.C. , Allmaras, R.R.
Subject:
conservation tillage , conventional tillage , research , innovation adoption , new technology , tillage implements , geographical variation , climatic factors , soil erosion , sustainable agriculture , environmental protection , soil resource management , soil properties , physiographic soil types , United States , Canada , Mexico
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003

9. AFLP analysis of a worldwide collection of Didymella bryoniae

Description:
Includes references
Author:
Kothera, R.T. , Keinath, A.P. , Dean, R.A. , Farnham, M.W.
Subject:
blight , fungal diseases of plants , Didymella bryoniae , plant pathogenic fungi , amplified fragment length polymorphism , genetic variation , pathogenicity , Citrullus lanatus , Cucumis melo , United States , Australia , Canada , China , Greece , Israel , Sweden , Netherlands
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2003

10. Age structure and disturbance legacy of North American forests

Description:
Includes references
Author:
Pan, Y. , Chen, J.M. , Birdsey, R. , McCullough, K. , He, L. , Deng, F.
Subject:
forests , age structure , spatial data , carbon sequestration , geographical distribution , geographical variation , anthropogenic activities , forest types , primary productivity , photosynthesis , forest inventory , remote sensing , United States , Canada
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2010