RIM: a bioeconomic model for integrated weed management of Lolium rigidum in Western Australia

Pannell, David J.; Stewart, Vanessa; Bennett, Anne; Monjardino, Marta; Schmidt, Carmel; Powles, Stephen B.

doi:10.1016/s0308-521x(03)00089-1

Cited by 131 publications

(157 citation statements)

References 23 publications

Supporting

Mentioning

155

Contrasting

Order By: Relevance

“…This has an impact on emergence modelling, for which every seed in the soil is commonly considered to be equivalent to every other seed (e.g. Pannell et al 2004), and accurate modelling will require a greater understanding of the way in which seedling vigour changes in response to ageing in soils.…”

Section: Discussionmentioning

confidence: 99%

Soil type does not affect seed ageing when soil water potential and temperature are controlled

Long

Steadman

Panetta³

et al. 2009

Plant Soil

View full text Add to dashboard Cite

To investigate the effects of soil type on seed persistence in a manner that controlled for location and climate variables, three weed speciesGomphocarpus physocarpus (swan plant), Avena sterilis ssp. ludoviciana (wild oat) and Ligustrum lucidum (broadleaf privet)-were buried for 21 months in three contrasting soils at a single location. Soil type had a significant effect on seed persistence and seedling vigour, but soil water content and temperature varied between soils due to differences in physical and chemical properties. Warmer, wetter conditions favoured shorter persistence. A laboratorybased test was developed to accelerate the rate of seed ageing within soils, using controlled superoptimal temperature and moisture conditions (the soil-specific accelerated ageing test, SSAAT). The SSAAT demonstrated that soil type per se did not influence seed longevity. Moreover, the order in which seeds aged was the same whether aged in the field or SSAAT, with L. lucidum being shortest-lived and A. sterilis being longest-lived of the three species.

show abstract

Section: Discussionmentioning

confidence: 99%

Soil type does not affect seed ageing when soil water potential and temperature are controlled

Long

Steadman

Panetta³

et al. 2009

Plant Soil

View full text Add to dashboard Cite

show abstract

“…The average rate of seed production per plant (R = 100) is well below maximum seed production, which is around 1350 seeds plant -1 according to the seed production model reported in Pannell et al (2004). However, it is appropriate as competition with wheat adversely affects ryegrass seed production and wheat density is assumed to be 100 plants m -2 .…”

Section: Parameter Estimationmentioning

confidence: 95%

“…This estimate is drawn from data for French serradella (Ornithopus sativus Brot.) in Pannell et al (2004). It is conservative as lucerne is generally more competitive with weeds than annual pastures, such as serradella (Roy Latta, pers comm., 2005).…”

Section: Parameter Estimationmentioning

confidence: 99%

Optimal management of annual ryegrass (Lolium rigidum Gaud.) in phase rotations in the Western Australian Wheatbelt*

Doole

2008

Aus J Agri & Res Econ

View full text Add to dashboard Cite

Lucerne ( Medicago sativa L.) helps to prevent soil salinisation in the Western Australian Wheatbelt by reducing recharge to saline water tables. There is broad consensus, though, that it is not sufficiently profitable to motivate producers to plant it at the intensity at which considerable off-site benefits would be conferred. This paper employs a multiple-phase optimal control model to explore the value of this perennial pasture for the management of herbicide-resistant annual ryegrass ( Lolium rigidum Gaud.) in a crop-pasture rotation, given the difficulty of observing this value in practice. The availability of selective herbicides for efficient weed control is found to determine whether or not it is profitable to adopt lucerne pasture under optimal management. Herbicide resistance requires producers to employ costly, non-selective treatments for in-crop weed control. Thus, it motivates the adoption of perennial pasture in which cost-effective forms of control can be implemented. Moreover, this result is robust to feasible changes in the current economic environment.

show abstract

“…(b) If the herbicide to be replaced is less expensive than the new control plan, it is economically advisable to prevent the resistance. Many researchers have revealed that herbicide tolerance in valuable crop weeds results in economic losses (Pannell et al, 2004;Doole et al, 2009) this has been observed globally, especially in developed part of the world like Australia and United States. In the US, production cost of $28.42 ha −1 in soybean enhanced because of glyphosate-resistant horseweed and, cost of handling glyphosate-resistant Palmer amaranth in Arkansas cotton production was computed at $48 ha −1 (Vencill et al, 2012).…”

Section: Herbicide Resistance Costsmentioning

confidence: 99%

Global Status of Herbicide Resistance Development: Challenges and Management Approaches

Zargar

Eerens

Pakina

et al. 2017

American Journal of Agricultural and Biological Sciences

View full text Add to dashboard Cite

Chemicals are widely recommended for the suppression of weed in crop land. This paper attempts to a greater integration of ideas into the development of herbicide resistance. This may lead researchers to focus less on simply defining herbicide resistance and more towards comprehensive investigations of the resistance development. Weed expert in collaboration with plant biologists can work in synergy to come up with better approach and innovation aimed to curtain herbicides resistance challenges. Chemical herbicides exert undue pressure on weed fitness and the diversity of weed community's changes over time in response to both herbicides and other strategies imposed on them. Repeatedly and intensively, the regular application of herbicides with similar effect may swiftly result in population shifts to tolerant, difficult to suppress and ultimately result to weed community that is herbicide resistant, particularly in absence of using herbicides with different modes of action. Weed expert and evolutionary biologists have to work in synergy toward an improve and broader knowledge of plant resistant development. This collaboration is likely to proffer innovative solutions to the herbicide resistance challenges.

show abstract

RIM: a bioeconomic model for integrated weed management of Lolium rigidum in Western Australia

Cited by 131 publications

References 23 publications

Soil type does not affect seed ageing when soil water potential and temperature are controlled

Soil type does not affect seed ageing when soil water potential and temperature are controlled

Optimal management of annual ryegrass (Lolium rigidum Gaud.) in phase rotations in the Western Australian Wheatbelt*

Global Status of Herbicide Resistance Development: Challenges and Management Approaches

Contact Info

Product

Resources

About