نتایج جستجو برای: plant breeders
تعداد نتایج: 398577 فیلتر نتایج به سال:
The German Federal ex situ Genebank of Agricultural and Horticultural Crop Species is the largest collection of its kind in the countries of the European Union and amongst the 10 largest collections worldwide. Beside its enormous scientific value as a safeguard of plant biodiversity, the plant genetic resources maintained are also of high importance for breeders to provide new impulses. The com...
A symposium was hosted 10 to 11 Mar. 2005 at Michigan State University to discuss the future of plant breeding education at public institutions. Plant breeding remains a vibrant, multidisciplinary science characterized by its ability to reinvent itself by absorbing and utilizing novel scientific findings and technical approaches. A contemporary breeding curriculum should include hands-on experi...
Plant breeders contributed enormously to the agricultural and economic development of the United States. By improving the profi tability of farming, plant breeders improved the economic condition of farmers and contributed to the growth and structure of rural communities. In the years since World War II, agriculture and the quality of rural life have been driven by policies that encouraged and ...
While measures to control carcass contamination with Salmonella at the processing plant have been implemented with some success, on-farm interventions that reduce Salmonella prevalence in meat birds entering the processing plant have not translated well on a commercial scale. We determined the impact of Salmonella vaccination on commercial poultry operations by monitoring four vaccinated and fo...
This article presents a holistic framework for understanding the science of plant breeding, as an alternative to the common objectivist and constructivist approaches in studies of science. It applies this approach to understanding disagreements about how to deal with yield stability. Two contrasting definitions of yield stability are described, and concomitant differences in the understanding a...
Genetic diversity is the raw material available to plant breeders. By productively recombining genetic diversity, plant breeders have been successfully producing, year after year, improved cultivars of the major domesticated species used in the world’s diverse agricultural systems. Molecular genetic markers offer a powerful tool to accelerate and refine this process. Existing genetic marker (ge...
based on an analogy between selection by plant and animal breeders of his day and what he termed “natural selection,” or more generally “selection.” “Natural selection” or “selection” for Darwin included what biologists came to see as being composed of (1) phenotypic selection of individuals based on phenotypic differences, and, when these are based on heritable genotypic differences, (2) genet...
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