Growth, Production, and Wildlife Use of Delta Duckpotatoes in Louisiana
Field studies of delta duckpotatoes (Sagittaria graminae var. platyphylla) disclosed that plant density was 1.5 times greater in wildlife exclosures than in control areas. Tuber production where nutrias (Myocastor coypus) and ducks were excluded was 652.3 g/m2• Tuber production was considerably less in plots subjected to foraging by wildlife (nutria foraging only: 104.7 g/m2, duck foraging only: 75.8 g/m2 , nutria and duck foraging: 64.8 g/m2 ). Tubers were found to a soil depth of 30 em but where animals were excluded greatest production (40.3%) was at the 10-15 cm depth. Nutrias foraged...
