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Physiological Basis of Seed Dormancy in Woolly Cupgrass (Eriochloa villosa [Thunb.] Kunth.)

Published online by Cambridge University Press:  12 June 2017

Harlene Hatterman-Valenti ,
Iliya A. Bello  and
Micheal D. K. Owen
Harlene Hatterman-Valenti
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
Iliya A. Bello
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
Micheal D. K. Owen
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
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Abstract

Laboratory studies were conducted to determine the effect of seed coat on woolly cupgrass seed moisture and oxygen uptake, and to determine if water-soluble growth inhibitors are present in the seed. Intact dormant seeds did not respond to any temperature regime or to oxygen concentrations above atmospheric level. Dehulling increased germination of dormant seed to about 85%. Oxygen concentrations above atmospheric level increased germination of partially dehulled (1/4 distal end of the seed dehulled) seeds an additional 10%. Oxygen uptake by dehulled dormant and intact nondormant seeds was greater than intact dormant seeds. Leaching intact dormant seeds did not promote germination, nor did the leachate inhibit germination of nondormant seeds. Embryos excised from dormant seeds germinated under laboratory conditions. Results from this study suggest that the woolly cupgrass seed coat may inhibit germination by controlling oxygen availability to the embryo.

Keywords

Woolly cupgrass, Eriochloa villosa [Thunb.] Kunth. ♯ ERBVISeed dormancyimbibitionrespirationseed hullsembryo excisionERBVI
Type
Weed Biology and Ecology
Information
Weed Science , Volume 44 , Issue 1 , March 1996 , pp. 87 - 90
Copyright
Copyright © 1996 by the Weed Science Society of America 

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References

Literature Cited

1. Bewley, J. D. and Black, M. 1978. Physiology and biochemistry of seeds in relation to germination. Pages 106–131 in Vol. 1: Development, germination and growth. Springer-Verlag, NY.Google Scholar
2. Bewley, J. D. and Black, M. 1982. Physiology and biochemistry of seeds in relation to germination. Pages 60–120 in Vol. 2: Viability, dormancy and environmental control. Springer-Verlag, NY.Google Scholar
3. Black, M. 1959. Dormancy studies in seeds of Avena fatua . I. The possible role of germination inhibitors. Can. J. Bot. 37: 393–402.Google Scholar
4. Chen, S.S.C. and Varner, E. J. 1970. Respiration and protein synthesis in dormant and after-ripened seeds of Avena fatua L. Plant Physiol. 46: 108–112.Google Scholar
5. Elliot, B. B. and Leopold, C. A. 1953. An inhibitor of germination and amylase activity in oat seeds. Physiol. Plantarum 6: 65–77.Google Scholar
6. Harvey, R. G. 1974. Susceptibility of seven annual grasses to herbicides. Weed Res. 14: 51–55.Google Scholar
7. Hilton, R. J. and Thomas, J. A. 1987. Changes in repiratory potential of dormant and nondormant Galium asparine L. (leavers) seeds during dry storage. J. Expt. Bot. 38: 1484–1490.Google Scholar
8. Hinton, J.J.C. 1955. Resistance of the testa to entry of water into the wheat kernel. Cereal Chem. 32: 296–306.Google Scholar
9. Hitchock, A. S. 1950. Page 592 in Manual of the grasses of the United States. U.S. Dept. Agriculture Pub. No. 200.Google Scholar
10. Kivilaan, A. and Bandurski, R. S. 1981. The one hundred-year period for Dr. Beal's seed viability experiment. Am. J. Bot 68: 1290–1292.Google Scholar
11. Kommedhal, J. E., DeWay, E. J., and Christensen, M. C. 1958. Factors affecting dormancy and seedling development in wild oats. Weeds 6: 12–18.Google Scholar
12. LaCroix, L. J. and Staniforth, D. W. 1964. Seed dormancy in velvetleaf. Weeds 12: 171–174.CrossRefGoogle Scholar
13. Livingston, R. B. and Allessio, M. L. 1968. Buried viable seeds in successional field and forest stands, Harvard Forest, Massachusetts. Bull. Torrey Bot. Club 95: 58–69.CrossRefGoogle Scholar
14. Lueschen, W. E. and Anderson, R. N. 1980. Longevity of velvetleaf (Abutilon theophrasti) seeds in soil under agricultural practices. Weed Sci. 28: 341–346.Google Scholar
15. Marcus, A., Freely, J., and Volcani, T. 1966. Protein synthesis in imbibed seeds. III. Kinetics of amino acid incorporation ribosome activation, and polysome formation. Plant Physiol. 41: 1167–1172.Google Scholar
16. McDonald, M. B. Jr. and Khan, A. A. 1977. Factors determining germination of Indian ricegrass seeds. Agron. J. 69: 558–563.Google Scholar
17. Mei, Q. Q., Upadhyaya, M. K., Furness, N. H. and Ellis, B. E. 1993. Mechanism of Seed Dormancy in Cynoglossum officinale L. Plant Physiol. 142: 325–330.Google Scholar
18. Navasero, P. E., Baun, L. C. and Juliano, B. O. 1975. Grain dormancy, peroxidase activity and oxygen uptake in Oryza sativa . Phytochemistry. 14: 1899–1902.CrossRefGoogle Scholar
19. Nieto-Hatem, J. 1963. Seed dormancy in Setaria lutescens. . Iowa State University, Ames, Iowa. 81p.Google Scholar
20. Owen, M.D.K. 1990. Woolly cupgrass biology and management. Proc. Crop Prod. Conf. Iowa State. Univ., Ames, IA. 2: 61–72.Google Scholar
21. Owen, Micheal D.K., Hartzler, Robert G., and Lux, James. 1993. Woolly cupgrass (Eriochloa villosa) control in corn (Zea mays) with chloroacetamide herbicides. Weed Technol. 7: 925–929.Google Scholar
22. Pareja, Mario R., and Staniforth, David W. 1985. Seed-soil microsite characteristics in relation to weed seed germination. Weed Sci. 33: 190–195.Google Scholar
23. Pecinvosky, K. T. 1994. Woolly cupgrass (Eriochloa villosa [Thunb.] Kunth.) and giant foxtail(Setaria faberi L. Herrm) competition and herbicide tolerance. . Iowa State University. Ames, IA. 168 p.Google Scholar
24. Roberts, H. E. 1961. Dormancy in rice seed II. The influence of covering structures. J. Expt. Bot. 12: 430–445.Google Scholar
25. Shull, C. A. 1920. Temperature and rate of moisture intake in seeds. Bot. Gaz. 69: 361–390.CrossRefGoogle Scholar
26. Strand, O. E. and Miller, G. R. 1980. Woolly cupgrass a new weed threat in the Midwest. Weeds Today 3: 16.Google Scholar
27. Toole, E. H. and Brown, E. 1946. Final results of the Duvel buried seed experiment. J. Agric. Res. 72: 201–210.Google Scholar