ALLELOPATHY EFFECTS FOR (Secale cereale L.) AND ( Brassicai nigra L.) IN :2-Growth and development of (Vicai faba L.).

Abstract

This study was conducted to evaluated the efficacy of several herbicidal effect of different concentration (٠،٢٫٥،٥٫٠،٧٫٥ and ١٠٫٠ gm/kgm of soil) of aerial parts extracts of (Secale cereale L.) and wild mastered (Brassicai nigra L.) on (Vicai faba L.) growth. the result show many phytotoxin compounds were present in this extracts, as well as The result indicated that the aerial extracts had a significant herbicidal effects on germination, shoot and roots length of plants comparative with control.