Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-19T02:57:38.186Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of tillage systems on vertical distribution, seedling recruitment and persistence of rigid ryegrass (Lolium rigidum) seed bank

Published online by Cambridge University Press:  20 January 2017

Bhagirath S. Chauhan ,
Gurjeet Gill  and
Christopher Preston
Gurjeet Gill
Affiliation:
School of Agriculture, Food and Wine, The University of Adelaide, Roseworthy Campus, South Australia, Australia 5371
Christopher Preston
Affiliation:
School of Agriculture, Food and Wine, The University of Adelaide, Waite Campus, South Australia, Australia 5371
Get access Rights & Permissions [Opens in a new window]

Abstract

Several studies were conducted to evaluate the effects of different tillage systems on the vertical seed distribution, seedling recruitment pattern, and persistence of the rigid ryegrass seed bank. Experiments were conducted in South Australia at two locations (Roseworthy Campus and Minlaton, a site on the Yorke Peninsula) in 2003 and 2005. The distribution of surface seeds through the soil profile was associated with the level of soil disturbance. The low–soil-disturbance tillage systems left more seed on the soil surface, whereas the high–soil-disturbance systems buried most of the seeds. The seedling recruitment of rigid ryegrass was lower under the low–soil-disturbance tillage systems than under the high–soil-disturbance tillage systems at both locations. The seedling recruitment was two- to fourfold greater under minimum tillage than under no-till. Not only was the seedling recruitment lower under the low–soil-disturbance tillage systems, biomass accumulation by rigid ryegrass seedlings was also lower under these systems. The carryover of residual viable seeds from one season to the next was similar between the tillage systems. However, seed decay under no-till (48 to 60%) was much greater than under minimum tillage (12 to 39%).

Keywords

Rigid ryegrass, Lolium rigidum Gaudin, LOLRISeedling recruitmentseed decaytillage intensity
Type
Research Article
Information
Weed Science , Volume 54 , Issue 4 , August 2006 , pp. 669 - 676
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

Buhler, D. D. 1991. Influence of tillage systems on weed population dynamics and control in the northern corn belt of the United States. Adv. Agron. (India) 1:51–60.Google Scholar
Buhler, D. D. and Daniel, T. C. 1988. Influence of tillage systems on giant foxtail (Setaria faberi) and velvetleaf (Abutilon theophrasti) density and control in corn (Zea mays). Weed Sci 36:642–647.CrossRefGoogle Scholar
D'Emden, F. H. and Llewellyn, R. S. 2004. No-till adoption and cropping issues for Australian grain growers. Page 108 in Fourth International Crop Science Conference. Brisbane, Australia.Google Scholar
Forcella, F. 1984. Size structure of silvergrass (Vulpia spp.) populations in direct drilled wheat. Aust. Weeds 3:3–5.Google Scholar
Genstat 5 Committee. 1993. Genstat 5, Release 3 Reference Manual. Oxford, U.K.: Clarendon Press. 816 p.Google Scholar
Heap, I. 2004. The International Survey of Herbicide Resistant Weeds. www.weedscience.com.Google Scholar
King, P. M. 1981. Comparison of methods for measuring severity of water repellence of sandy soils and assessment of some factors that affect its measurement. Aust. J. Soil Res 19:275–285.CrossRefGoogle Scholar
McGowan, A. 1970. Comparative germination patterns of annual grasses in north-eastern Victoria. Aust. J. Exp. Agric. Anim. Husb 10:401–404.CrossRefGoogle Scholar
Mohler, C. L. and Galford, A. E. 1997. Weed seedling emergence and seed survival: separating the effects of seed position and soil modification by tillage. Weed Res 37:147–155.CrossRefGoogle Scholar
O'Donovan, J. T., de St. Remy, E. A., O'Sullivan, P. A., Dew, D. A., and Sharma, A. K. 1985. Influence of the relative time of emergence of wild oat (Avena fatua) on yield loss of barley (Hordeum vulgare) and wheat (Triticum aestivum). Weed Sci 33:498–503.CrossRefGoogle Scholar
Pareja, M. R., Staniforth, D. W., and Pareja, G. P. 1985. Distribution of weed seeds among soil structural units. Weed Sci 33:182–189.CrossRefGoogle Scholar
Peltzer, S. C. and Matson, P. T. 2002. How fast do the seedbanks of five annual cropping weeds deplete in the absence of weed seed input?. 553–555 in Proceeding of the 13th Australian Weeds Conference. Plant Protection Society of Western Australia: Perth, Australia.Google Scholar
Steadman, K. J., Bignell, G. P., and Ellery, A. J. 2003. Field assessment of thermal after-ripening time for dormancy release prediction in Lolium rigidum seeds. Weed Res 43:458–465.CrossRefGoogle Scholar
Yenish, J. P., Doll, J. D., and Buhler, D. D. 1992. Effects of tillage on vertical distribution and viability of weed seed in soil. Weed Sci 40:429–433.CrossRefGoogle Scholar
Yenish, J. P., Fry, T. A., Durgan, B. R., and Wyse, D. L. 1996. Tillage effects on seed distribution and common milkweed (Asclepias syriaca) establishment. Weed Sci 44:815–820.CrossRefGoogle Scholar