Problems caused by<i>Sorghum halepense</i>in Australia

Monaghan, N.

doi:10.1080/09670877809411607

Cited by 4 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2004). As a result of the destructive force of Johnsongrass (Monaghan 1978), some studies on its allelopathic potential have been conducted (Abdul‐Wahab 1964; Abdul‐Wahab & Rice 1967; Horowitz 1973; Vasilakoglou et al . 2005).…”

mentioning

confidence: 99%

Compounds from the subterranean part of Johnsongrass and their allelopathic potential

Liu

Zhang

Wei

et al. 2011

Weed Biology and Management

View full text Add to dashboard Cite

The allelopathic effects of the exotic invasive weed, Johnsongrass, on Lactuca sativa, a native plant in China, were evaluated and the phytotoxins were investigated under laboratory conditions.The crude extracts (chloroform and ethyl acetate fractions) that were obtained from the ethanol extract of the subterranean parts of Johnsongrass inhibited the germination speed and growth of the roots and shoots of the test plant. The four compounds, ethyl p-hydroxybenzoate, diosmetin, apigenin, and luteolin, were isolated from the extract of the subterranean parts of Johnsongrass first, along with three other compounds (reported previously), p-hydroxybenzaldehyde, p-hydroxybenzoic acid, and dhurrin, and they all were evaluated on L. sativa. At the concentration of <0.5 mmol L -1 , ethyl p-hydroxybenzoate, dhurrin, and the mixture of the compounds delayed the germination speed of the seeds of L. sativa at 24 h of incubation, while apigenin delayed the germination speed of the seeds of L. sativa at 72 h of incubation. Ethyl p-hydroxybenzoate demonstrated the strongest delaying effect among the phenols and a similar effect was found with apigenin among the flavonoids, wheras ethyl p-hydroxybenzoate induced a drastic inhibition of the germination at 2 mmol L -1 . In contrast, p-hydroxybenzaldehyde and luteolin had no effect on the germination at any concentration at any stage. All the substances inhibited the shoot and root growth of L. sativa at 3 mmol L -1 . Increasing the concentration increased the inhibition of the growth of L. sativa.The inhibitory activity of ethyl p-hydroxybenzoate and p-hydroxybenzaldehyde was greater than that of the other compounds.This result suggested that the isolated phytotoxins might contribute to the successful invasion by Johnsongrass.

show abstract

mentioning

confidence: 99%

Compounds from the subterranean part of Johnsongrass and their allelopathic potential

Liu

Zhang

Wei

et al. 2011

Weed Biology and Management

View full text Add to dashboard Cite

show abstract

“…Two strains of JGMV are recorded in Australia, the type strain (JGMV-JG) and the Krish-infecting strain (JGMV-K) which differs in being able to infect sorghum cultivars with the Krish resistance gene [171][172][173][174]. JGMV occurs frequently in cereal crops because Johnsongrass, a naturalized perennial grass and its principal host, occurs commonly in Australia, especially in the wetter parts of the coastal and sub-coastal regions of NSW and south-east QLD [169,175]. This grass species allows JGMV to survive readily between cereal growing seasons, and acts as a major reservoir for aphids and virus to spread to sorghum, maize, sweet corn and pearl millet crops.…”

Section: Johnsongrass Mosaic Virusmentioning

confidence: 99%

Virus Diseases of Cereal and Oilseed Crops in Australia: Current Position and Future Challenges

Jones

Sharman

Trębicki

et al. 2021

Viruses

View full text Add to dashboard Cite

This review summarizes research on virus diseases of cereals and oilseeds in Australia since the 1950s. All viruses known to infect the diverse range of cereal and oilseed crops grown in the continent’s temperate, Mediterranean, subtropical and tropical cropping regions are included. Viruses that occur commonly and have potential to cause the greatest seed yield and quality losses are described in detail, focusing on their biology, epidemiology and management. These are: barley yellow dwarf virus, cereal yellow dwarf virus and wheat streak mosaic virus in wheat, barley, oats, triticale and rye; Johnsongrass mosaic virus in sorghum, maize, sweet corn and pearl millet; turnip yellows virus and turnip mosaic virus in canola and Indian mustard; tobacco streak virus in sunflower; and cotton bunchy top virus in cotton. The currently less important viruses covered number nine infecting nine cereal crops and 14 infecting eight oilseed crops (none recorded for rice or linseed). Brief background information on the scope of the Australian cereal and oilseed industries, virus epidemiology and management and yield loss quantification is provided. Major future threats to managing virus diseases effectively include damaging viruses and virus vector species spreading from elsewhere, the increasing spectrum of insecticide resistance in insect and mite vectors, resistance-breaking virus strains, changes in epidemiology, virus and vectors impacts arising from climate instability and extreme weather events, and insufficient industry awareness of virus diseases. The pressing need for more resources to focus on addressing these threats is emphasized and recommendations over future research priorities provided.

show abstract

Weed Management in Sorghum

Mishra

Talwar

2020

Sorghum in the 21st Century: Food – Fodder – Feed – Fuel for a Rapidly Changing World

View full text Add to dashboard Cite

Problems caused bySorghum halepensein Australia

Cited by 4 publications

References 13 publications

Compounds from the subterranean part of Johnsongrass and their allelopathic potential

Compounds from the subterranean part of Johnsongrass and their allelopathic potential

Virus Diseases of Cereal and Oilseed Crops in Australia: Current Position and Future Challenges

Weed Management in Sorghum

Contact Info

Product

Resources

About