Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-22T04:43:00.303Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Early Competition on Growth of Common Milkweed

Published online by Cambridge University Press:  12 June 2017

L. L. Evetts  and
O. C. Burnside
L. L. Evetts
Affiliation:
Dep. of Agron., Univ. of Nebraska, Lincoln, NB 68503
O. C. Burnside
Affiliation:
Dep. of Agron., Univ. of Nebraska, Lincoln, NB 68503
Get access Rights & Permissions [Opens in a new window]

Abstract

Four modes of competition were studied in relation to early development of common milkweed (Asclepias syriaca L.) alone and in competition with green foxtail [Setaria viridis (L.) Beauv], redroot pigweed (Amaranthus retroflexus L.), and sorghum [Sorghum bicolor (L.) Moench ‘RS-626’]. The three species were used to study the effect of no competition, light competition, soil competition, and light and soil (full) competition on common milkweed. Common milkweed height was significantly reduced by soil and full competition with the three species, while only green foxtail caused a significant reduction in height due to light competition. Shoot weight of common milkweed was significantly reduced by light, soil, and full competition by the three species. Reproduction percentage of common milkweed roots was most severely reduced by light and full competition from green foxtail and redroot pigweed. An environment conducive to the establishment of the perennial common milkweed from seed exists when annual weeds are removed by herbicides.

Type
Research Article
Information
Weed Science , Volume 23 , Issue 1 , January 1975 , pp. 1 - 3
Copyright
Copyright © 1975 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Delvo, H.W. 1972. Herbicide use on corn and soybeans in the north central region, 1972. Proc. N. Cent. Weed Contr. Conf. 27:17–19.Google Scholar
2. Donald, C.M. 1958. The interaction of competition for light and for nutrients. Aust. J. Agr. Res. 9:421–435.Google Scholar
3. Evetts, L.L. and Burnside, O.C. 1972. Germination and seedling development of common milkweed and other species. Weed Sci. 20:371–378.Google Scholar
4. Evetts, L.L. and Burnside, O.C. 1973. Milkweed – a persistent perennial that reduces yield. Neb. Quart. 20(1):12–15.Google Scholar
5. Evetts, L.L. and Burnside, O.C. 1973. Early root and shoot development of nine plant species. Weed Sci. 21:289–291.Google Scholar
6. Jeffery, L.S. and Robison, L.R. 1971. Growth characteristics of common milkweed. Weed Sci. 19:193–196.CrossRefGoogle Scholar
7. Schreiber, M.M. 1967. A technique for studying weed competition in forage legume establishment. Weeds 15:1–4.Google Scholar
8. Stern, W.T. and Donald, C.M. 1962. The influence of leaf area and radiation on the growth of clover in swards. Aust. J. Agr. Res. 13:615–623.CrossRefGoogle Scholar