Rangeland Ecology & Management

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Switchgrass recruitment from broadcast seed vs. seed fed to cattle
Author
Ocumpaugh, W. R.
Archer, S.
Stuth, J. W.
Publisher
Society for Range Management
Publication Year
1996-07-01
Body

Fecal seeding by livestock may be an effective, low-cost means of rangeland restoration. We compared recruitment of switchgrass (Panicum virgatum L.) from seed fed to cattle and deposited in dung to that of broadcast-seeded plots receiving a comparable number of unfed seed. Although germinability of seed passed through livestock (52 to 62%) was reduced relative to that of broadcast seed (85 to 91%), recruitment of switchgrass from seed in cattle feces was equal to or superior to that of broadcast seed in terms of establishment (frequency of occurrence and density), plant growth and final plant size. The frequency of plot with emerging switchgrass plants ranged from 62 to 100% when seeds were delivered in feces, but only 2 to 40% when seeds were broadcast. After 1 year, the frequency of occurrence of switchgrass plant in fecal vs. broadcast-seeded plot was comparable for autumn trials. However, evaluations 1 year after the spring trials continue to result in higher frequency of plot with switchgrass plant from seed delivered in feces than of broadcast seedings (56 vs. 4% for May 1990, P < 0.05; and 90 vs. 51% for May 1991, P less than or equal to 0.01). Enhanced plant recruitment on fecal-seeded plots occurred even though broadcast-seeded plots received 1.5 to 1.7 times more pure live seed (PLS). Plants on fecal-seeded plots had a greater plant size score (based on visual ratings of height, culm density, and biomass) than plants on broadcast-seeded plots (P < 0.05 for May seedings; P < 0.05 for October 1990; P < 0.10 for October 1991). Results suggest significant advantages of fecal seeding over conventional broadcast seeding in terms of seedling emergence, establishment and growth. The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information. Migrated from OJS platform August 2020

Language
en
Resource Type
Text
Document Type
Journal Issue/Article
Digital Object Identifier (DOI)
10.2307/4002599
Additional Information
Ocumpaugh, W. R., Archer, S., & Stuth, J. W. (1996). Switchgrass recruitment from broadcast seed vs. seed fed to cattle. Journal of Range Management, 49(4), 368-371.
IISN
0022-409X
OAI Identifier
oai:repository.arizona.edu:10150/644334
Journal Volume
49
Journal Number
4
Journal Pages
368-371
Journal Name
Journal of Range Management
Keywords
recruitment
grassland improvement
seed dispersal
sowing rates
cattle manure
Panicum virgatum
Texas
seed germination
plant height