Selective Herbicidal Action of Barban on Oat and Wheat Plants

Abstract
Effects of barban (4-chloro-2-butynlm-chlorocarbanilate) were investigated on the growth and metabolism of oat (Avena sativaL. ‘Victoria’) (susceptible) and wheat (Triticum aestivumL. ‘Ushio’) (tolerant) plants. Barban remarkably retarded the growth of oat seedlings but not that of wheat seedlings. Respiration and photosynthesis of both plant species were not inhibited. Protein and RNA synthesis of oat seedlings were remarkably inhibited even 1 day after the barban treatment, while the protein and RNA synthesis of wheat seedlings were inhibited less.