The alfalfa variety metadata file contains descriptors and characteristic of over 2900 alfalfa varieties and experimental lines used in these variety trials. The data were aggregated from the Alfalfa Variety Performance Database originally compiled in 2000 by Daniel W. Wiersma and Wayne G. Hartman (doi: 10.4231/PHKH-4334). Three companion data files also extracted from the database contain the yield (doi: 10.4231/Y31N-5R10), forage quality (doi: 10.4231/02PR-9H36), and stand persistence data (doi: 10.4231/KK4K-QD96).
Characteristics of alfalfa varieties and experimental lines in this dataset include variety name, business and marketing information, agronomic information such as fall dormancy, grazing tolerance, and winterhardiness ratings, and pest tolerance information including pathogen and insect resistance ratings. These ratings were determined using Standardized Tests developed by the North American Alfalfa Improvement Conference (NAAIC.org). Details of each test can be found as a PDF file archived at the NAAIC web site (https://www.naaic.org/resource/stdtests.php).
Cite this work
Researchers should cite this work as follows:
- Wiersma, D. W., Hartman, W. G., Pejša, S., Brouder, S., Volenec, J. (2020). Metadata for alfalfa varieties and experimental lines 1986 to 1999. Purdue University Research Repository. doi:10.4231/FMY9-6966
This dataset was compiled from university variety trials conducted in the US and Canada from 1986 to 1999, and was assembled for on-line publication in 2020.