Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-18T00:32:03.776Z Has data issue: false hasContentIssue false

Johnsongrass (Sorghum halepense) Seed Dispersal in Corn Crops under Mediterranean Conditions

Published online by Cambridge University Press:  20 January 2017

Judit Barroso*
Affiliation:
Department of Land Resources and Environmental Sciences, Leon Johnson Hall, Montana State University, Bozeman, MT 59717-3120
Dionisio Andújar
Affiliation:
Department of Plant Protection, Instituto de Ciencias Agrarias, CSIC, Serrano 115 B, 28006 Madrid, Spain
Carolina San Martín
Affiliation:
Department of Plant Protection, Instituto de Ciencias Agrarias, CSIC, Serrano 115 B, 28006 Madrid, Spain
César Fernández-Quintanilla
Affiliation:
Department of Plant Protection, Instituto de Ciencias Agrarias, CSIC, Serrano 115 B, 28006 Madrid, Spain
José Dorado
Affiliation:
Department of Plant Protection, Instituto de Ciencias Agrarias, CSIC, Serrano 115 B, 28006 Madrid, Spain
*
Corresponding author's E-mail: judit.barroso@montana.edu

Abstract

Natural dissemination of johnsongrass seeds as well as the effect of combine harvesting on this process were studied in corn fields. The estimation of natural dispersal was carried out by two different methods, collecting seeds throughout the season using seed traps and sampling soil–surface seed abundance before harvest using a vacuum device. Both methods showed the same dispersal pattern. A minimum of 84.6% was dispersed in the first 2 m from the focus and a maximum of 1.6% was dispersed beyond the first 5 m. An average of 76.3% of these dispersed seeds were lost or buried after shedding but before harvest. Seed dispersal by the combine harvester was estimated from the difference between soil–surface seed abundance in the same sites pre and postharvest. Although the quantity of seeds dispersed by the combine was similar to those dispersed by natural factors, dispersal distances were significantly higher. Around 90% of the dispersed seeds were found in the first 5 m forward and backward of the combine direction from the infestation source, and 1.6% of the seeds were found beyond 22 m forward and 10 m backward of the combine direction from the infestation source. A large proportion of the seeds dispersed were dormant or not viable. It is concluded that the major role of sexual reproduction in johnsongrass population dynamics may be to spread the risks, promoting dispersal in time and space.

Type
Weed Biology and Ecology
Copyright
Copyright © 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

Andújar, D., Ruiz, D., Ribeiro, A., Fernández-Quintanilla, C., and Dorado, J. 2011. Spatial distribution patterns of johnsongrass (Sorghum halepense) in corn fields in Spain. Weed Sci. 59:8289.Google Scholar
Ballare, C. L., Scopel, A. L., Ghersa, C. M., and Sanchez, R. A. 1987. The demography of Datura ferox (L.) in soybean crops. Weed Res. 27:91102.Google Scholar
Barroso, J., Fernández-Quintanilla, C., Ruiz, D., Hernaiz, P., and Rew, L. J. 2004. Spatial stability of Avena sterilis ssp. ludoviciana populations under annual applications of low rates of imazamethabenz. Weed Res. 44:178186.Google Scholar
Barroso, J., Navarrete, L., Sánchez del Arco, M. J., Fernández-Quintanilla, C., Lutman, P. J. W., Perry, N. H., and Hull, R. I. 2006. Dispersal of Avena fatua and Avena sterilis patches by natural dissemination, soil tillage and combine harvesters. Weed Res. 46:118128.Google Scholar
Bendixen, L. E. 1986. Corn (Zea mays) yield in relationship to johnsongrass (Sorghum halepense) population. Weed Sci. 34:449451.Google Scholar
Blanco-Moreno, J. M., Chamorro, L., Masalles, R. M., Recasens, J., and Sans, F. X. 2004. Spatial distribution of Lolium rigidum seedlings following seed dispersal by combine harvesters. Weed Res. 44:375387.Google Scholar
Evans, D. M., Mcleod, J. J., Pascoe, L., and Memmott, J. 2009. The efficiency of a vacuum device for estimating soil-surface seed abundance on lowland farms. Weed Res. 49:337340.Google Scholar
Ghersa, C. M., Martinez-Ghersa, M. A., Satorre, E. H., Van Esso, M. L., and Chichotky, G. 1993. Seed dispersal, distribution and recruitment of seedlings of Sorghum halepense (L.) Pers. Weed Res. 33:7988.Google Scholar
Ghosheh, H. Z., Holshouser, D. L., and Chadler, J. M. 1996. Influence of density on johnsongrass (Sorghum halepense) interference in field corn (Zea mays). Weed Sci. 44:879883.Google Scholar
Harrington, G. T. 1916. Germination and viability tests of Johnson grass seed. Proc. Assoc. Official Seed Anal. 9:2428.Google Scholar
Harrington, G. T. 1917. Further studies of the germination of Johnson grass seeds. Proc. Assoc. Official Seed Anal. 10:7176.Google Scholar
Heijting, S., Van der Werf, W., and Kropff, M. J. 2009. Seed dispersal by forage harvester and rigid-tine cultivator in maize. Weed Res. 49:153163.Google Scholar
Holm, L. R. G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P. 1977. The World's Worst Weeds: Distribution and Biology. Honolulu, HI The University Press of Hawaii. Pp. 5461.Google Scholar
Horowitz, M. 1973. Spatial growth of Sorghum halepense . Weed Res. 13:200208.Google Scholar
Howard, C. L., Mortimer, A. M., Gould, P., Putwain, P. D., Cousens, R., and Cussans, G. W. 1991. The dispersal of weeds: seed movement in arable agriculture. Pages 821828 in Proc. of the Brighton Crop Protection Conference—Weeds. Lavenham, UK The Lavenham Press.Google Scholar
Leguizamon, E. S. 1986. Seed survival and patterns of seedling emergence in Sorghum halepense (L.) Pers. Weed Res. 26:397403.Google Scholar
Lolas, P. C. and Coble, H. D. 1982. Noncompetitive effects of johnsongrass (Sorghum halepense) on soybeans (Glycine max). Weed Sci. 30:589593.Google Scholar
Lovett Doust, L. 1981. Population dynamics and local specialization in a clonal perennial (Ranunculus repens). I. The dynamics of ramets in contrasting habitats. J. Ecol. 69:743755.Google Scholar
McCanny, S. J. and Cavers, P. B. 1988. Spread of proso millet (Panicum miliaceum L.) in Ontario, Canada. II. Dispersal by combines. Weed Res. 28:6772.Google Scholar
McWhorter, C. G. 1971. Growth and development of johnsongrass ecotypes. Weed Sci. 19:141147.Google Scholar
McWhorter, C. G. 1989. History, biology, and control of johnsongrass. Rev. Weed Sci. 4:85121.Google Scholar
Mitskas, M. B., Eleftherohorinos, I. G., and Damalas, C. A. 2003. Interference between corn and johnsongrass (Sorghum halepense) from seed or rhizomes. Weed Sci. 51:540545.Google Scholar
Penny, E. J., Kaminski, R. M., and Reinecke, K. J. 2006. A new device to estimate abundance of moist-soil plant seeds. Wildlife Soc. Bull. 34:186190.Google Scholar
Rew, L. J. and Cussans, G. W. 1997. Horizontal movement of seeds following tine and plough cultivation: implications for spatial dynamics of weed infestations. Weed Res. 37:247256.Google Scholar
Rew, L. J., Froud-Williams, R. J., and Boatman, N. D. 1996. Dispersal of Bromus sterilis and Anthriscus sylvestris seed within arable field margin. Agric. Ecosyst. Environ. 59:107114.Google Scholar
Scopel, A. L., Ballare, C. L., and Ghersa, C. M. 1988. Role of seed reproduction in the population ecology of Sorghum halepense in maize crops. J. Appl. Ecol. 25:951962.Google Scholar
Shirtliffe, S. J. and Entz, M. H. 2005. Chaff collection reduces seed dispersal of wild oat (Avena fatua) by a combine harvester. Weed Sci. 53:465470.Google Scholar
[SPSS] Statistical Product and Service Solutions. 2010. IBM SPSS® Amos™ 19 User's Guide. Chicago, IL SPSS Inc.Google Scholar
Taylorson, R. B. and McWhorter, C. G. 1969. Seed dormancy and germination in ecotypes of johnsongrass. Weed Sci. 17:359361.Google Scholar
Van Wychen, L. R., Luschei, E. C., Bussan, A. J., and Maxwell, B. D. 2002. Accuracy and cost effectiveness of GPS-assisted wild oat mapping in spring cereal crops. Weed Sci. 50:120129.Google Scholar
Westerman, P. R., Borza, J. K., Andjelkovic, J., Liebman, M., and Danielson, B. 2008. Density-dependent predation of weed seeds in maize field. J. Appl. Ecol. 45:16121620.Google Scholar