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Root-knot nematode is caused by the plant parasitic nematode, Meloidogyne incognita. The nematode larvae feed on roots causing the swellings or knots that are characteristic of root-knot infection. Roots are often stunted and deformed (photo 1).
The rust fungus Puccinia lagenophorae is a potential control agent, but being biotrophic, it is not suitable for use as a mycoherbicide. We test- ed the effects of induced rust epidemics on S.
Dormancy is one of the most common adaptive strategies of plants to adverse environmental conditions. Dormancy is defined as a period of temporary physiological and growth inactivity. It is manifested in almost all groups of plants from the primitive algae to highly evolved seed plants.
This process, known as cold acclimation, is briey reviewed from the perception of cold, through transduction of the low-temperature signal to functional analysis of cold-induced gene products.
737 Weed Technology. 2005. Volume 19:737743 A Common Ragweed (Ambrosia artemisiifolia) Biotype in Southwestern QueŽbec Resistant to Linuron1 SOPHIE SAINT-LOUIS, ANTONIO DITOMMASO, and ALAN K. WATSON2 Abstract: The degree of resistance to linuron of a common ragweed biotype was investigated.
The AMF suppressed the R. similis population by almost 50% and thusincreased protection of the root against the nematode. This reduction was significant for both females and males within roots.
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