Search National Agricultural Library Digital Collections

You searched for:

Subjects United States Remove constraint United States: United States Subjects Canada Remove constraint Canada: Canada Year 2003 Remove constraint 2003: 2003

Displaying all 4 items start over

1. 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

2. 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

3. Genetic Diversity of Soybean Cultivars from China, Japan, North America, and North American Ancestral Lines Determined by Amplified Fragment Length Polymorphism

Description:: Includes references
Author:: Ude, George N. , Kenworthy, William J. , Costa, Jose M. , Cregan, Perry B. , Alvernaz, Jennie
Subject:: Glycine max , soybeans , cultivars , genetic variation , genetic relationships , amplified fragment length polymorphism , plant breeding , China , Japan , United States , Canada
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2003

4. Progeny testing and selection intensity for Holstein bulls in different countries

Description:: Includes references
Author:: Powell, R.L. , Norman, H.D. , Sanders, A.H.
Subject:: dairy bulls , Holstein , sire evaluation , progeny testing , international cooperation , breeding value , selection intensity , genetic improvement , milk yield , milk fat yield , milk protein yield , selection criteria , somatic cell count , udders , animal morphology , height , animal breeding , Australia , Canada , Europe , New Zealand , United States
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2003