Synonymes : Avena ludoviciana var. psilathera (Thell.) Parodi, Avena persica Steud., Avena sterilis subsp. ludoviciana (Durieu.) Gillett & Magne, Avena sterilis var. ludoviciana (Durieu.) Husn., Avena sterilis var. psilathera Thell., Avena trichophylla C. Koch
Common name : Wild oat, sterile oat
Common name in Hindi : Jangli Jai
Bangla English Hindi Urdu
Diagnostic characters
Biology
Ecology and distribution
Nuisance
Weed control
Botany
Uses/Remark
References
Wild oat is an upright annual weed. It has long broad leaves having bright green colour. During early stage its plants resemble with wheat and cultivated oat, but at mature stage this weed is taller than wheat (120cm).
Annual plant, it reproduces by seeds. The first seed on the panicle had almost no dormancy and, thereafter, the seeds of the second, third and fourth positions germinated in turn. Seeds from the third and fourth positions did not germinate until the second and third years after sowing.
It prefers well-drained light textured soil. After maturity seeds shatter and have very long persistence in the soil. Favourable temperature for germination is 20-25°C.
- Chemical
Post application of fenoxaprop at 400 g/ha or chlodinafop at 50 g/ha.
Habit
Erect grass.
Roots
Fibrous root system. Leaves
The leaves are linear and alternate, blade 60cm long and 0.5 to 1.5cm wide; ligule membranous; sheath on lower leaves.
Inflorescence
Panicles are composed of green spikelets and each spikelet has 2 to 5 pedicelled brownish green flowers; disarticulation above the glumes; glumes equal, two-toothed at the apex; awn twisted, about 3 to 8cm long, upper parts bent sharply at right angles to the twisted parts.
Seeds
Seeds are brown and black covered with black hairs.
A. sterilis have many variable types which seem to be neither wild nor cultivated forms, types which have arisen as crosses between Avena species.
- Chhokar R. S., Chauhan D. S., Sharma R. K., Singh R. K. and Singh R. P. 2002. Major weeds of wheat and their management. Bulletin No. 13. Directorate of Wheat Research. Haryana, India.
- Häfliger, E. and Scholz, H. 1980. Grass Weeds 1. Documenta Ciba-Geigy. Switzerland.
- Holm L. G., Plucknett D. L., Pancho J. V., Herberger J. P. 1991. The world’s worst weeds. Distribution and Biology. East-West Center by the University Press. Hawaii.
- Bischof F. 1978. Common weeds from Iran, Turkey, the Near East and North Africa. German Agency for Technical Cooperation. Germany.
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