Paper Information

Title: 

THE EFFECT OF CANOPY ARCHITECTURE ON LIGHT USE EFFICIENCY AND COMPETITION WITH RED ROOT PIGWEED (AMARANTHUS RETROFLEXUS) IN SOYBEAN (GLYSINE MAX)

Type: PAPER
Author(s): HOSEINI PERSHANG,R.MASHHADI HAMID,ALIZADEH H.,MESGARAN M.B.
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

FIELD EXPERIMENT WAS CONDUCTED TO EVALUATE THE EFFECT OF CANOPY ARCHITUCHER ON RADIATION USE EFFICIENCY (RUE) AND COMPETITION BETWEEN RED ROOT PIGWEED AND SOYBEAN. THE EXPERIMENTAL DESIGN WAS A FACTORIAL ARRANGEMENT OF TREATMENTS BASED ON COMPLETELY RANDOMIZED BLOCK WITH THREE REPLICATIONS. TWO SOYBEAN CULTIVARS INCLUDING CLARK (TALL) AND INTERPRICE (DWARF) WERE PLANTED IN SOLE AND INTERCROPPING IN COMPETITION WITH REDROOT PIGWEED AT (0, 2, 4, 8 PLANT/M-2). THE RESULTS SHOWED THAT SOYBEAN CANOPY IN INTERCROPPING ABSORBED MORE LIGHT THAN SOLE CROPPING AND THUS REDUCED THE AMOUNT OF LIGHT RECEIVED BY REDROOT PIGWEED. RED ROOT PIGWEED REDUCED SOYBEAN BIOMASS IN.15, .52 AND 1.75 G M-2 MIXED CULTURES, CLARK PURE CULTURE AND INTERPRICE PURE CULTURE RESPECTIVELY. INTERCROPPING SOYBEAN CULTIVAR HAD MINIMUM REDUCTION IN SOYBEAN BIOMASS (7.5%). WHEN INTERCROPPED SOYBEAN CULTIVAR WERE LESS OFFECTED BY RED ROOT PIGWEED INTERFERENCE.

 
Keyword(s): CANOPY ARCHITECTURE, INTERCROPPING, SOYBEAN, COMPETITION
 
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