Glasilo biljne zaštite, Vol. 21 No. 6, 2021.
Review article
Biology, ecology and managment of wild oat (Avena fatua L.)
Valentina Šoštarčić
orcid.org/0000-0002-6887-7680
; Sveučilište u Zagrebu, Agronomski fakultet, Zavod za herbologiju
Tina Rakonić
; student Ms studija Fitomedicine, Sveučilišta u Zagrebu, Agronomskog fakulteta
Zvonimir Ostojić
orcid.org/0000-0002-1341-8954
; Sveučilište u Zagrebu, Agronomski fakultet, Zavod za herbologiju
Maja Šćepanović
Abstract
Wild oat (Avena fatua L.) is an annual monocotyledonous plant species and one of the ten most dangerous weeds of temperate agricultural regions. It prefers temperate and cold climates and heavy clay soils. It attacks winter cereals and can cause yield reductions of more than 70%, depending on the time of germination and emergence. The base temperature is 0.4-2.0 °C, so it can germinate in the cold months. Under favorable conditions it can produce over 6000 seeds per plant. Seed dormancy in the soil is up to nine years, but dormancy is usually lost four to five years after maturation. Wild oat seeds have two types of dormancy: endogenous dormancy caused by embryonic dormancy, and exogenous dormancy caused by impermeability of parts of the caryopsis. In addition to a direct effect on yield, wild oat secretes allelopathic compounds that inhibit the growth of other plants, and their content in the soil varies according to the maturity of the plant. It is a host of numerous insect pests, such as aphids that transmit yellow barley virus (BYDV). When controlling wild oat, preventive measures must first be taken to prevent its occurrence in the crop. In vegetation, some of the registered herbicides with different mechanisms of action must be used.
Keywords
biology; dormancy; morphology; winter cereals; wild oat
Hrčak ID:
267587
URI
Publication date:
15.12.2021.
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