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Effect of Shade on Velvetleaf (Abutilon theophrasti) Growth, Seed Production, and Dormancy

Published online by Cambridge University Press:  12 June 2017

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

Growth, seed production, and dormancy of velvetleaf in response to shading were evaluated in the field. Velvetleaf plant height, leaf number, number of branches, and plant dry weight decreased linearly with increasing shade. No differences were observed for plant height, number of leaves, or branches/plant when plants were shaded 30% or not shaded throughout the growing season. However, the 76% shade treatment reduced velvetleaf height (1984 only), leaf number, stem branches, and plant dry weight. These reductions were greater in 1984 than 1985 except for plant dry weight that decreased by 88% each year. The number of capsules and the number of seeds/plant decreased linearly with increasing shade levels, while the seed weight increased with increasing shade level. Shading also decreased seed dormancy. These results demonstrate that shade suppresses velvetleaf growth and seed production, and shortens the dormancy of seeds that are produced by these plants.

Keywords

Velvetleaf, Abutilon theophrasti Medicus # ABUTHIntraspecific competitionseed dormancyseed productionABUTH
Type
Research
Information
Weed Technology , Volume 9 , Issue 3 , September 1995 , pp. 452 - 455
Copyright
Copyright © 1995 by the Weed Science Society of America 

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References

Literature Cited

1. Acock, B. and Acock, M. C. 1987. Periodic shading and the location and timing of branches on soybean. Agron. J. 79:949–952.Google Scholar
2. Boyd, T. W. and Murray, D. S. 1982. Effects of shade on silverleaf night shade (Solanum elaeagnifolium). Weed Sci. 30:264–269.Google Scholar
3. Chandler, J. M. and Dale, J. E. 1974. Comparative growth of four malvaceus species. Proc. South. Weed Sci. Soc. 27:116–117.Google Scholar
4. Crocker, W. 1906. Role of seed coats in delayed germination. Bot. Gaz. 42:265–291.Google Scholar
5. Davis, W. E. 1917. Resistance of seed coats of Abutilon theophrasti to intake of water. Bot. Gaz. 64:166–167.CrossRefGoogle Scholar
6. Dekker, J. and Meggitt, W. F. 1983. Interference between velvetleaf (Abutilon theophrasti Medic.) and soybean (Glycine max (L.) Merr.) I. Growth. Weed Res. 23:91–101.Google Scholar
7. Eaton, B. J., Russ, O. G., and Feltner, K. C. 1976. Competition of velvetleaf, prickly sida and Venice mallow in soybeans. Weed Sci. 24:224–228.Google Scholar
8. Egley, C. H. and Candles, J. M. 1978. Germination and viability of seeds of 2.5 years in a 50-year buried seed study. Weed Sci. 26:230–239.Google Scholar
9. Hagood, E. S. Jr., Bauman, T. T., Williams, T. L. Jr., and Schreiber, M. M. 1980. Growth analysis of soybeans (Glycine max) in competition with velvetleaf (Abutilon theophrasti). Weed Sci. 28:929–934.Google Scholar
10. Higgins, R. A., Staniforth, D. W., and Pedigo, L. P. 1984. Effects of weed density and defoliated soybeans (Glycine max) on velvetleaf (Abutilon theophrasti) development. Weed Sci. 32:511–519.Google Scholar
11. Jordan, J. L., Jordan, L. S., and Jordan, C. M. 1982. Effect of boiling water on velvetleaf seed germination. West. Soc. Weed Sci. Res. Prog. Rep. p. 309.Google Scholar
12. Knake, E. L. 1972. Effect of shade on giant foxtail. Weed Sci. 20:588–592.Google Scholar
13. 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
14. Nieto, J. H. and Staniforth, D. W. 1961. Corn-foxtail competition under various production conditions. Agron. J. 53:1–5.Google Scholar
15. Oliver, L. R. 1979. Influence of soybean (Glycine max) planting date on velvetleaf (Abutilon theophrasti) competition. Weed Sci. 27:183–188.Google Scholar
16. Patterson, D. T. 1982. Shading responses of purple and yellow nutsedges (Cyperus rotundus and C. esculentus). Weed Sci. 30:25–30.Google Scholar
17. Patterson, D. T. 1982. Effects of shading and temperature on showy Crotalaria (Crotalaria spectabilis). Weed Sci. 30:692–697.Google Scholar
18. Sacher, J. A. 1973. Senescence and postharvest physiology. Annu. Rev. Plant Physiol. 24:197–224.Google Scholar
19. Spencer, N. R. 1984. Velvetleaf, Abutilon theophrasti (Malvaceae), history and economic impact in the United States. Econ. Bot. 38:407–416.Google Scholar
20. Stoller, E. W. and Woolley, J. T. 1985. Competition for light by broadleaf weeds in soybean (Glycine max). Weed Sci. 83:199–202.Google Scholar
21. Toole, E. H. and Brown, E. 1946. Final results of the Duvel buried seed experiment. J. Agric. Res. 72:201–210.Google Scholar
22. Varner, J. E. 1961. Biochemistry of senescence. Annu. Rev. Plant Physiol. 12:245–264.Google Scholar
23. Warwick, S. I. and Black, L. D. 1988. The biology of Canadian Weeds. 90. Abutilon theophrasti . Can. J. Plant Sci. 68:1069–1085.Google Scholar
24. Winter, D. M. 1960. The development of the seed of Abutilon theophrasti II. Seed coat. Am. J. Bot. 47:157–161.Google Scholar