Evaluation location: Nebraska, United States
Accessions from the U.S. photoperiod insensitive sorghum collection were grown at Ithaca, Nebraska over 2001 and 2002 in single-row non-replicated plots. Wheatland check plots were included at 13% check plot density. Approximately one quarter of the accessions in the collection were not planted due to space constraints in the field, or were not harvested due primarily to those accessions not reaching maturity before frost. Grain from all harvested accessions were ground to pass a 1 mm screen on a cyclone mill and scanned using NIRS 6500 scanning monochromator.
Over 500 reference samples were selected based on spectral data for wet lab analyses. Reference samples were analyzed by a commercial feed lab, NIRS prediction equations developed, and predicted values (from spectral data) reported for starch, fat, protein, fiber, phosphorous, total digestible nutrients, metabolizable energy, and net energy content of the samples. Various statistics are reported for the prediction equations. The mean and standard deviation of each trait are also reported for the check variety Wheatland.
View various statistics of the Sorghum Photoperiod sensitive chemical and nutritional data in an Excel Spreadsheet or as an HTML webpage.