2026-09-21T06:40:23Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/45600 2023-07-11 col_2142_5131 col_2142_14737 com_2142_5130 com_2142_690 com_2142_397

Davis, Adam S. Brawn, Jeffrey D. Davis, Adam S. Kent, Angela D. Dalling, James W. Fu, Xianhui 2013-08-22T16:49:12Z 2013-08-22T16:49:12Z 2015-08-22T10:00:22Z 2013-08 2013-08-22T16:49:12Z 2013-08 Knowledge related to seed persistence in soil is critical for weed control decisions in the integrated weed management systems. Many annual weed species have dormant soil seed banks (SSBs), and this may be an important mechanism for seed persistence in these species. Although the relationship between seed dormancy and persistence in soil has received previous attention, it has not been well characterized. In order to quantify the relationship between seed persistence and dormancy, a five-year seedbank dynamics field study was conducted in Savoy, IL, involving twelve ruderal weed species: Abutilon theophrasti, Alliaria petiolata, Amata tuberculatus, Ambrosia trifida, Chenopodium album, Ipomoea hederacea, Kochia scoparia, Panicum miliaceae, Polygonum pensylvanicum, Setaria faberi, Setaria lutescens, and Thlaspi arvense. Seed half-lives (t0.5) in the SSB ranged from 0.25 to 2.22 years for the study species. Seed dormancy showed a positive linear relationship to t0.5 (slope = 0.050, p < 0.001, R2 = 0.92), while the variance of seed dormancy followed a negative nonlinear relationship with t0.5. No relationship between environmental conditions during the course of seed burial and seed dormancy across study years was detected. These results indicate a strong relationship between the dormancy and persistence of seeds of ruderal weed species in the soil seedbank. Moreover, they suggest that dormancy release for these species was at least partially controlled by intrinsic seed characteristics. Findings of this study will facilitate the determination of seed persistence and management of the SSB in integrated weed management. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2013-07-12T17:05:38Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Fu_Xianhui.docx: 342289 bytes, checksum: 13df6b33c71a5110ff9b08fdc5863e6b (MD5) Fu_Xianhui.pdf: 791070 bytes, checksum: 8af699a049ce994c50067b7b1de05171 (MD5) Made available in DSpace on 2013-08-22T16:49:12Z (GMT). No. of bitstreams: 3 Xianhui_Fu.pdf: 791070 bytes, checksum: 8af699a049ce994c50067b7b1de05171 (MD5) Fu_Xianhui.docx: 342289 bytes, checksum: 13df6b33c71a5110ff9b08fdc5863e6b (MD5) license.txt: 4055 bytes, checksum: 261636e0e94ace16a4b68a0e58377880 (MD5) Restriction data tranferred 2014-07-01T11:34:40-05:00 Original Data Group with Access UIUC Users [automated] Release Date: 2015-08-22 11:49:27 UTC Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Seth Robbins (srobbins@illinois.edu) on 2013-08-22T16:49:45Z Item is restricted until 2015-08-22T16:49:27Z U of I Only Restriction Lifted for Item 45582 on 2015-08-22T10:00:22Z. http://hdl.handle.net/2142/45600 en Copyrigh 2013 Xianhui Fu Seed dormancy seed persistence soil seedbank seed half-life seed longevity. Relationship between seed dormancy and persistence of seeds of annual ruderal species in the soil seedbank text Natural Res & Env Sci 1875 Natural Res & Env Sciences 0190 University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Nat Res & Envrn Sci -UIUC 10KS0190PHD