Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-25T11:13:32.265Z Has data issue: false hasContentIssue false

Time of Emergence and Seed Production of Longspine Sandbur (Cenchrus longispinus) and Puncturevine (Tribulus terrestris)

Published online by Cambridge University Press:  12 June 2017

Rick A. Boydston*
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Irrigated Agric. Res. and Ext. Ctr., Prosser, WA 99350

Abstract

Fall-planted longspine sandbur began to emerge in April, peaked in late April or May, and continued at low levels through October. During the first year after seeding, 98% of the total seedlings emerged prior to June. Fall-planted puncturevine began to emerge in late April or May and continued through October. Puncturevine emergence was multipeaked and 75% of each season's total emerged prior to mid-July. A similar number of puncturevine seedlings emerged the second and third years after planting as in the first. The emergence pattern for a species was similar each year regardless of how long the seed had lain in the soil. Longspine sandbur required 7 to 13 weeks from emergence to heading and produced approximately 2600, 1300, 180, and 3 spikes per plant when planted in May, June, July, and August, respectively. Puncturevine flowered within 3 to 4 weeks after emergence when temperatures were favorable and produced an average of 5600, 5200, 3600, and 200 burs per plant when planted in May, June, July, and August, respectively.

Type
Weed Biology and Ecology
Copyright
Copyright © 1990 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. Alam, L.R. and Wiese, A. F. 1985. Effect of degree days on weed emergence. Proc. South. Weed Sci. Soc. 38:448.Google Scholar
2. Barralis, G., Chadoeuf, R., and Lonchamp, J. P. 1988. Longevite des semences de mauvaises herbes annuelles dans un sol cultive. Weed Res. 28:407418.Google Scholar
3. Boydston, R. A. 1989. Germination and emergence of longspine sandbur (Cenchrus longispinus). Weed Sci. 37:6367.CrossRefGoogle Scholar
4. Brenchly, W. E. and Warington, K. 1930. The weed seed population of arable soil. I. Numerical estimation of viable seeds and observations of their natural dormancy. J. Ecol. 18:235272.Google Scholar
5. Chepil, W. S. 1946. Germination of weed seeds: I. Longevity, periodicity of germination and vitality of seeds in cultivated soil. Sci. Agric. 26:307346.Google Scholar
6. Johnson, E. 1932. The puncturevine in California. Univ. Calif. Coll. Agric. Exp. Stn. Bull. 528. 42 pp.Google Scholar
7. Maddox, D. M. 1976. History of weevils on puncturevine in and near the United States. Weed Sci. 24:414419.Google Scholar
8. Nussbaum, E. S., Wiese, A. F., Crutchfield, D. E., Chenault, E. W., and Lavake, D. 1985. The effects of temperature and rainfall on emergence and growth of eight weeds. Weed Sci. 33:165170.CrossRefGoogle Scholar
9. Ogg, A. G. Jr. and Dawson, J. H. 1984. Time of emergence of eight weed species. Weed Sci. 32:327335.CrossRefGoogle Scholar
10. Pathak, P. S. 1971. Factors affecting seed production of Tribulus terrestris Linn. Trop. Ecol. 123:228236.Google Scholar
11. Roberts, H. A. 1964. Emergence and longevity in cultivated soil of seeds of some annual weeds. Weed Res. 4:296307.Google Scholar
12. Squires, V. R. 1969. Ecological factors contributing to the success of Tribulus terrestris L. as a weed in a winter rainfall environment in southern Australia. Proc. Ecol. Soc. Aust. 4:5566.Google Scholar
13. Stoller, E. W. and Wax, L. M. 1973. Periodicity of germination and emergence of some annual weeds. Weed Sci. 21:574580.CrossRefGoogle Scholar
14. Twentymen, J. D. 1974. Control of vegetative and reproductive growth in sandbur (Cenchrus longispinus). Aust. J. Exp. Agric. Anim. Husb. 14:764770.Google Scholar
15. Twentyman, J. D. 1974. Environmental control of dormancy and germination in the seeds of Cenchrus longispinus (Hack.) Fern. Weed Res. 14:111.CrossRefGoogle Scholar
16. Zimdahl, R. L., Moody, K., Lubigan, R. T., and Castin, E. M. 1988. Patterns of weed emergence in tropical soil. Weed Sci. 36:603608.Google Scholar