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Time Requirement from Pollination to Seed Maturity in Waterhemp (Amaranthus tuberculatus)

Published online by Cambridge University Press:  20 January 2017

Michael S. Bell  and
Patrick J. Tranel
Michael S. Bell
Affiliation:
Department of Crop Sciences, University of Illinois at Urbana–Champaign, Urbana, IL 61801
Patrick J. Tranel*
Affiliation:
Department of Crop Sciences, University of Illinois at Urbana–Champaign, Urbana, IL 61801
*
Corresponding author's E-mail: [email protected]
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Abstract

Experiments were conducted to determine the amount of time required for waterhemp to produce mature seeds after pollination. Female waterhemp plants were pollinated over a 24-h time period and then isolated from males. Two branches, each containing at least 500 flowers, were harvested from each female at the time of the initial pollination, designated as 0 d after pollination (DAP), as well as at multiple other times after pollination up to 62 DAP. One branch from each harvest was stored at 30 C for 48 h, while the other branch was stored at −20 C for 48 h. Branches were then stored at room temperature until all harvests were complete, at which time seeds from each branch at each time after pollination were collected, weighed, and stratified. Germination tests were then conducted to determine the time at which seeds become viable after pollination. Seeds that had not germinated by the end of the germination tests were subjected to tetrazolium testing for viability. Germination tests were also conducted on nonstratified seeds to investigate changes in seed dormancy that were expected to occur over the amount of time the seeds were allowed to remain on the plants. Seeds stored initially at 30 C postharvest became viable 7 to 9 DAP, whereas seeds stored initially at −20 C postharvest did not become mature until 11 DAP. Seed coat color was white soon after pollination and became dark brown to nearly black by 12 DAP, and seed weight increased until 12 DAP. Tetrazolium tests for seed viability correlated well with the germination tests. Germination tests on nonstratified seeds indicated that dormancy level was initially high in the population used, but began to decrease between 15 and 30 DAP. Results of this study have implications both for waterhemp management and research.

Keywords

Waterhemp, Amaranthus tuberculatus (Moq.) Sauer AMATU,Dormancygerminationpollinationseed setseed weight
Type
Research Article
Information
Weed Science , Volume 58 , Issue 2 , June 2010 , pp. 167 - 173
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

Anderson, D. D., Roeth, F. W., and Martin, A. R. 1996. Occurrence and control of triazine-resistant common waterhemp (Amaranthus rudis) in field corn (Zea mays). Weed Technol. 10:570–575.Google Scholar
Chandler, J. M., Munson, R. L., and Vaughan, C. E. 1977. Purple moonflower: emergence, growth, reproduction. Weed Sci. 25:163–167.Google Scholar
Egley, G. H. 1976. Germination of developing prickly sida seeds. Weed Sci. 24:239–243.Google Scholar
Hager, A. G., Wax, L. M., Simmons, F. W., and Stoller, E. W. 1997. Waterhemp Management in Agronomic Crops. Urbana, IL University of Illinois. 12.Google Scholar
Heap, I. 2009. International Survey of Herbicide Resistant Weeds. www.weedscience.org/In.asp. Accessed: September 1, 2009.Google Scholar
Horak, M. J. and Peterson, D. E. 1995. Biotypes of palmer amaranth (Amaranthus palmeri) and common waterhemp (Amaranthus rudis) are resistant to imazethapyr and thifensulfuron. Weed Technol. 9:192–195.Google Scholar
Jasieniuk, M., Brûlé-Bable, A. L., and Morrison, I. N. 1996. The evolution and genetics of herbicide resistance in weeds. Weed Sci. 44:176–193.Google Scholar
Jayasuriya, K. M. G. G., Baskin, J. M., Geneve, R. L., and Baskin, C. C. 2007. Seed development in Ipomoea lacunosa (Convolvulaceae), with particular reference to anatomy of the water gap. Ann. Bot. 100:459–470.Google Scholar
Koorneef, M., Hanhart, C. J., Hilhorst, H. W. M., and Karssen, C. M. 1989. In vivo inhibition of seed development and reserve protein accumulation in recombinants of abscisic acid biosynthesis and responsiveness mutants in Arabidopsis thaliana . Plant Physiol. 90:463–469.Google Scholar
Legleiter, T. R. and Bradley, K. W. 2008. Glyphosate and multiple herbicide resistance in common waterhemp (Amaranthus rudis) populations from Missouri. Weed Sci. 56:582–587.Google Scholar
Leon, R. G., Bassham, D. C., and Owen, M. D. K. 2006. Germination and proteome analyses reveal intraspecific variation in seed dormancy regulation in common waterhemp (Amaranthus tuberculatas). Weed Sci. 54:305–315.Google Scholar
Patzoldt, W. L., Dixon, B. S., and Tranel, P. J. 2003. Triazine resistance in Amaranthus tuberculatus (Moq) Sauer that is not site-of-action mediated. Pest Manag. Sci. 59:1134–1142.Google Scholar
Patzoldt, W. L., Tranel, P. J., and Hager, A. G. 2005. A waterhemp (Amaranthus tuberculatus) biotype with multiple resistance across three herbicide sites of action. Weed Sci. 53:30–36.Google Scholar
Peters, J. 2002. “Amaranthaceae” [online update]. Sections 1–3, Contribution No. 29 in. Tetrazolium Testing Handbook. 2nd ed. Lincoln, NE Association of Official Seed Analysts. http://www.aosaseed.com/TZwebsite/TZupdateindex.html. Accessed: September 1, 2009.Google Scholar
Rodríguez, A. F. M., Palacios, I. S., Molina, R. T., Corchero, A. M., and Muñoz, J. T. 2000. Dispersal of Amaranthaceae and Chenopodiaceae pollen in the atmosphere of Extremadura (SW Spain). Grana. 39:56–62.Google Scholar
Sellers, B. A., Smeda, R. J., Johnson, W. G., Kendig, J. A., and Ellersieck, M. R. 2003. Comparative growth of six Amaranthus species in Missouri. Weed Sci. 51:329–333.Google Scholar
Shoup, D. E., Al-Khatib, K., and Kulakow, P. A. 2008. Inheritance of resistance of common waterhemp (Amaranthus rudis) to protoporphyrinogen oxidase-inhibiting herbicide. Trans. Kans. Acad. Sci. 111:283–291.Google Scholar
Shoup, D. E., Al-Khatib, K., and Peterson, D. E. 2003. Common waterhemp (Amaranthus rudis) resistance to protoporphyrinogen oxidase-inhibiting herbicides. Weed Sci. 51:145–150.Google Scholar
Singh, A. B. and Babu, C. R. 1980. Studies on pollen allergy in Delhi. Allergy. 35:311–317.Google Scholar
Steckel, L. E., Sprague, C. L., Stoller, E. W., and Wax, L. M. 2004. Temperature effects on germination of nine Amaranthus species. Weed Sci. 52:217–221.Google Scholar
Tranel, P. J. and Wright, T. R. 2002. Resistance of weeds to ALS-inhibiting herbicides: what have we learned? Weed Sci. 50:700–712.Google Scholar