Paper Information

Title: 

MORPHOLOGICAL TRAITS OF CORN AND SOYBEAN IN SIMULTANEOUS COMPETITION OF REDROOT PIGWEED AND JIMSONWEED

Type: PAPER
Author(s): ZAEFARIAN F.,AGHAALIKHANI M.,REZVANI M.,RAHIMIAN MASHHADI H.,ZAND E.
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

IN ORDER TO INVESTIGATING THE ROLE OF CORN/SOYBEAN INTERCROPPING IN RESOURCES USE EFFICIENCY AND SUPPRESSING THE WEEDS, A FIELD EXPERIMENT WAS CARRIED OUT IN RESEARCH FARM OF AGRICULTURE FACULTY OF TEHRAN UNIVERSITY IN 2007. TREATMENTS WERE ARRANGED IN FACTORIAL EXPERIMENT BASED ON RANDOMIZED COMPLETE BLOCKS WITH THREE REPLICATIONS. THE TREATMENTS WERE 5 DIFFERENT MIXING RATIOS OF CORN (ZEA MAYS L.) AND SOYBEAN (GLYCINE MAX L.) CONSIST OF: 100% CORN: 0% SOYBEAN (P1), 75% CORN: 25% SOYBEAN (P2), 50% CORN: 50% SOYBEAN (P3), 25% CORN: 75% SOYBEAN (P4) AND 0% CORN: 100% SOYBEAN (P5) AND 4 LEVELS OF WEED CONTAMINATION CONSIST OF: WEED FREE (W1), INFESTATION OF REDROOT PIGWEED (AMARANTHUS RETROFLEXUS L.) (W2), INFESTATION OF JIMSONWEED (DATURA STRAMONIUM L.) (W3) AND SIMULTANEOUS INFESTATION OF REDROOT PIGWEED AND JIMSONWEED (W4). THE DENSITY OF THE WEEDS WAS 15 PLANT PER METER OF ROW. THE RESULT SHOWED THAT SOME CORN TRAITS SUCH AS EAR DIAMETER, EAR LENGTH AND STEM DIAMETER WERE HIGHEST IN P4W1, BUT CORN HEIGHT INCREASED WITH INCREASING CORN RATIO. THE HIGHEST AMOUNTS OF SOME MORPHOLOGICAL TRAITS OF SOYBEAN SUCH AS BRANCH NUMBERS AND STEM DIAMETER WERE OBTAINED IN SOYBEAN WEED FREE PURE STAND (P5W1). BUT HIGHEST AMOUNT OF SOYBEAN HEIGHT WAS OBTAINED IN P2W4.

 
Keyword(s): CORN, SOYBEAN, REDROOT PIGWEED, JIMSONWEED AND MORPHOLOGICAL TRAITS
 
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