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Information Journal Paper

Title

EFFECT OF ALLELOPATHIC EXTRACTS OF BARLEY ON GERMINATION, VEGETATIVE GROWTH AND SOME ENZYMES ACTIVATES OF ECHINOCLOA COLONUM

Pages

 Start Page 88 | End Page 93

Abstract

 This study was conducted to evaluate the allelopathic potential of BARLEY extracts against ECHINOCLOA COLONUM at Islamic Azad University, Shoushtar Branch, Iran at germination and vegetative growth stage. Both of experiments were laid out according to Complete Block Randomize design with four replications and treatments were 0, 25, 50 and 75 % BARLEY extract concentration. BARLEY extracts application exhibited gradual rise in inhibitory effects on seedling weight, antioxidant enzymes activities and α-amylase activity but elevated the MALONDIALDEHYDE concentration inEchinocloa colonum seedling. The lowest α-amylase activity was noted at higher levels of extract application (2.09 nmol seed-1 min-2). Likewise, seedling weight, antioxidant enzyme activities and SUCROSE SYNTHESIS ACTIVITY were declined with BARLEY extract application but MALONDIALDEHYDE concentration increased. Minimom sucrose synthesis reduction (1.2 nmol prot-1 min-2) and maximum MALONDIALDEHYDE reduction (0.74 nmol gr wight) was noted at 70% level of BARLEY extract application. In conclusion, BARLEY extract had strong allelopathic potential againstEchinocloa colonum and decreased α-amylase and SUCROSE SYNTHESIS ACTIVITY but increased cell membrane damage.

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