Wild oat (Avena fatua) seedling recruitment pattern affects the efficacy of trifluralin and chlorpropham herbicide applications.

DOI JASI Web Site 6 Citations 15 References
  • Asai Motoaki
    National Agricultural Research Center
  • Yogo Yasuhiro
    National Agricultural Research Center National Institute for Agro-Environmental Sciences

Bibliographic Information

Other Title
  • 出芽時期の異なるカラスムギに対するトリフルラリン，クロロプロファム処理の効果
  • シュツガ ジキ ノ コトナル カラスムギ ニ タイスル トリフルラリン クロロプロファム ショリ ノ コウカ

Search this article

Abstract

A pot experiment was conducted to determine the relationship between seedling recruitment patterns of wild oat (Avena fatua L., a problematic weed in winter cereal crop) and the efficacy of residual herbicides. Granular trifluralin and chorpropham (IPC) with diflufenican wettable powder formulation were applied before seedling emergence of three wild oat populations differing in emergence behavior. The effect of herbicide soil-incorporation was also evaluated. Emergence flush of two populations occurred in mid to late November, and the third in early February. Both herbicides suppressed the early emerging cohorts better than late emerging. Mature plants of the early emerging cohorts were reduced by 80 to 87% (in comparison with untreated cohorts) through soil surface application (non-incorporated) of granular trifluralin;in the later cohort of the delayed-emergence population, there was a reduction of only 11%. Non-incorporated IPC with diflufenican reduced mature plant numbers in the early emerging cohorts by 70 to 92%, but did not control the later cohort. The soil-incorporated granular trifluralin treatment was more effective than the non-incorporated treatment in reducing later cohort plant numbers. Hence, wild oat suppression is enhanced by soil-incorporation of herbicide. IPC with diflufenican incorporation did not improve the efficacy of suppression.

Journal

Citations (6)*help

See more

References(15)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top