Allelopathic effects of water extracts of pieces of wooly cupgrass (Eriochloa villosa) on the seedlings of field crops

Arnold Szilágyi,László Radócz

doi:10.34101/actaagrar/72/1610

Abstract

In Hungary, the woolly cupgrass (Eriochloa villosa [Thunb.] Kunth) endanger row crops (i.e. corn, sunflower). Its fast spreading based on some reason viz. long-lasting emergence, reduced sensitivity to many kinds of herbicides, vigorous competitional ability and fast initial growth. Allelopathy, ability of many plant species to produce one or more biochemicals wgich is used tocompete with each others. In this experiment we examined, whether the woolly cupgrass possesses allelopathy, and if so, how influences on the development of cultured crops like maize, sunflower and lettuce.

Highlights

In Hungary, the woolly cupgrass (Eriochloa villosa [Thunb.] Kunth) endanger row crops
Its fast spreading based on some reason viz. long-lasting emergence, reduced sensitivity to many kinds of herbicides, vigorous competitional ability and fast initial growth
Allelopathy, ability of many plant species to produce one or more biochemicals wgich is used tocompete with each others

Summary

SUMMARY

In Hungary, the woolly cupgrass (Eriochloa villosa [Thunb.] Kunth) endanger row crops (i.e. corn, sunflower). Long-lasting emergence, reduced sensitivity to many kinds of herbicides, vigorous competitional ability and fast initial growth. Allelopathy, ability of many plant species to produce one or more biochemicals wgich is used tocompete with each others. In this experiment we examined, whether the woolly cupgrass possesses allelopathy, and if so, how influences on the development of cultured crops like maize, sunflower and lettuce. Az ázsiai gyapjúfű (Eriochloa villosa [Thunb.] Kunth) egyre jelentősebb gyomnövénnyé válik Magyarországon.Ezafajfőképpakapáskultúrákat(ku- korica,napraforgóstb.)veszélyeztetigyomosítóhatásával.Azázsiaigyapjúfűajólalkalmazkodógyomnövényekheztartozik.Magyarországklímaviszonyai megfelelő környezeti feltételeket biztosítanak az új flóraelemgyomfajszámára.Belloetal.(2000)szerint azoptimáliscsírázásihőmérsékletea20–35°C,így Magyarországonmáráprilisbanbeindulhatacsírázása.

ANYAG ÉS MÓDSZER

Az ázsiai gyapjúfű vizes kivonatának hatása a saláta csírázására