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Paper Information

Title: 

PROPER QUADRATE TYPE IN THE STUDY OF RELATIONSHIP BETWEEN SEED BANK AND WEED DENSITY IN SUGAR BEET CROP

Type: PAPER
Author(s): ABDOLLAHIAN NOGHABI MOHAMMAD,ROHAM RAHELE,AKBARI NASER
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

A FIELD EXPERIMENT WAS CONDUCTED TO DETERMINE PROPER QUADRATE TYPE IN THE STUDY OF RELATIONSHIP BETWEEN SEED BANK AND WEED DENSITY IN SUGAR BEET CROP (BETA VULGARIS) IN 2009 AT THE KAMAL ABAD AGRICULTURAL RESEARCH STATION OF KARAJ. SAMPLING FROM SEED BANK BEFORE SUGAR BEET DRILLING AND WEEDS POPULATION IN THREE STAGES DURING THE GROWING SEASON WERE DONE USING SQUARE (50 * 50 CM) AND RECTANGLE (25 * 100 CM) QUADRATE. THE RESULTS SHOWED THAT POPULATION OF AMARANTHUS RETROFLEXUS L. WAS GREATEST BOTH IN THE SEED BANK AND DURING THE GROWING SEASON OF SUGAR BEET. THE RELATIONSHIP BETWEEN SEED BANK AND PLANT POPULATION OF AMARANTHUS RETROFLEXUS SHOWED THAT WITH INCREASE OF SEED BANK BEFORE SUGAR BEET DRILLING PLANT DENSITY OF AMARANTHUS RETROFLEXUS IN THE SUGAR BEET FIELD ENHANCED SIGNIFICANTLY IN BOTH QUADRATE TYPES. REGRESSION COEFFICIENT BETWEEN WEED SEED BANK AND PLANT POPULATION OF AMARANTHUS RETROFLEXUS IN THE EARLY GROWTH STAGE OF SUGAR BEET CROP IN RECTANGLE AND SQUARE QUADRATES WERE R2= 0.70 AND R2= 0.53 RESPECTIVELY. THUS, IN THE STUDY OF SEED BANK IN SUGAR BEET CROP, RECTANGLE QUADRATE MAY RECOMMEND IN ORDER TO STIGMATA THE PLANT DENSITY OF AMARANTHUS RETROFLEXUS FROM ITS SEED DENSITY IN THE SEED BANK BEFORE DRILLING.

 
Keyword(s): SEED BANK, WEEDS POPULATION, SUGAR BEET, SQUARE AND RECTANGLE QUADRATE
 
 
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