Paper Information

Title: 

STUDY ON ALLELOPATHIC EFFECTS OF AQUATIC EXTRACTS OF BARLEY (HORDEUM VULGAR L.) AND OAT (AVENA SATIVA L.) ON SOYBEAN (GLYCINE MAX L.) GERMINATION AND ALLELOPATHIC EFFECTS OF BROAD BEAN (VICIA FABA L.) EXTRACTS ON GERMINATION AND GROWTH OF SORGHUM...

Type: PAPER
Author(s): SHAHRAJABIAN MOHAMMAD HESAM,MORADI KAZEM,SOLEYMANI ALI,KHOSHKHARAM MEHDI
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

IN ORDER TO STUDY THE STIMULATORY OR INHIBITORY EFFECTS OF BARLEY AND OAT ON SOYBEAN SEEDS GERMINATION, AN EXPERIMENT WAS CARRIED OUT AS A COMPLETELY RANDOMIZED DESIGN WITH 3 REPLICATION IN LIBRARY RESEARCH, UNIVERSITY OF KORASGAN, IN 2008. DIFFERENT CONCENTRATIONS OF BARLEY, OAT AND BARLEY+OAT AQUEOUS EXTRACTS (50, 75 AND 100 %) WERE PREPARED. PERCENTAGE OF GERMINATION, GERMINATION RATE, MEAN GERMINATION TIME, LENGTH OF RADICLE AND COLEPTILE AND SEEDLINGS DRY WEIGHT WERE MEASURED. RESULTS SHOWED THAT THE HIGHEST CONCENTRATION OF ALL PLANTS EXTRACTS (100%) HAD A SIGNIFICANT NEGATIVE EFFECT ON THE STUDIED TRAITS, BUT THE LOW CONCENTRATION (50%) DID NOT HAVE ANY EFFECT (NEGATIVE OR POSITIVE) ON GERMINATION. INTERACTION BETWEEN BARLEY AND OAT EXTRACTS INDICATED THAT COMBINATION OF THESE TWO CAUSED A HIGHER REDUCTION IN THE STUDIED TRAITS. ALLELOPATHIC POTENTIAL OF STRAW AQUEOUS EXTRACTS OF 4 BROAD BEAN CULTIVARS (ZOHREH, ALJAZAYERI, SHAMI, BAREKAT) ON GERMINATION AND SEEDLING GROWTH OF CORN AND SORGHUM WAS EVALUATED. EXTRACTS CONCENTRATIONS INCLUDED 0, 5, 10, 20, 40 AND 60%. RESULTS SHOWED THAT AQUEOUS EXTRACTS OF BROAD BEAN CULTIVARS DECREASED SEED GERMINATION AND SEEDLING GROWTH OF BOTH CROPS, BUT VEGETATIVE GROWTH WAS RELATIVELY MORE SENSITIVE TO THE EXTRACTS THAN GERMINATION. BY AN INCREASE IN EXTRACT CONCENTRATION TO 60%, GERMINATION RATE AND PERCENTAGE, RADICLE LENGTH, COLEOPTILE LENGTH AND SEEDLINGS FRESH WEIGHT REDUCED SIGNIFICANTLY BY 65, 70, 86, 75, 85 AND 60, 32, 90, 49, 53%, RESPECTIVELY. NO SIGNIFICANT DIFFERENCES WERE OBSERVED FOR STUDIED TRAITS AMONG BROAD BEAN CULTIVARS.

 
Keyword(s): ALLELOPATHY, SOYBEAN, GERMINATION, BARLEY, OAT, AQUEOUS EXTRACT, BROAD BEAN, CORN, SORGHUM
 
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