Paper Information

Title: 

EFFECT OF WEEDING TIME OF VELVETLEAF ON YIELD AND COMPONENT YIELD OF SOYBEAN

Type: PAPER
Author(s): HATAMI MOGHADAM ZAHRA,SEBAN MOHAMMAD,SEDIGH ELAHE
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

VELVETLEAF (ABUTILON THEOPHRASTI MEDIC.) IS ONE OF THE MOST IMPORTANT WARM SEASON WEED IN THE SOYBEAN FIELDS. IN ORDER TO DETERMINE THE EFFECT OF WEEDING TIME OF VELVETLEAF ON YIELD AND COMPONENT YIELD OF SOYBEAN, AN EXPERIMENT WAS CONDUCTED AT UNIVERSITY OF AGRICULTURAL AND NATURAL RESOURCES`S EXPERIMENTAL STATION OF GORGAN, IRAN IN 2006 USING A RANDOMIZED COMPLETE BLOCK DESIGN WITH FOUR REPLICATIONS. THE EXPERIMENTS CONSISTED OF TWO SETS OF TREATMENTS; ONE SET WAS TO KEEP THE PLOT WEED-FREE UNTIL THE GROWTH STAGES OF 2- LEAF (V2), 4- LEAF (V4), 6- LEAF (V6), STAGES, BEGINNING OF FLOWERING (R1) AND BEGINNING OF POD SET (R3). THE SECOND SET WAS INTERFERENCE TREATMENTS THAT VELVETLEAF WAS ALLOWED TO GROW WITHIN THE PLOT UNTIL THE ABOVE-MENTIONED GROWTH STAGES. WEEDY AND WEED-FREE CHECKS WERE ALSO INCLUDED IN THE STUDY. THE EFFECT OF WEED-FREE TREATMENTS WERE SIGNIFICANT ON YIELD, AND POD NUMBER PER PLANT, WHILE SEED NUMBER IN POD AND 100-SEED WEIGHTS OF SOYBEAN WERE NOT SIGNIFICANTLY AFFECTED BY. THE EFFECTS OF INTERFERENCE TREATMENTS WERE SIGNIFICANT ON ALL TRAITS EXCEPT 100-SEED WEIGHTS. POD NUMBER PER PLANT WAS MORE SENSITIVE COMPARED WITH OTHER COMPONENT YIELD.

 
Keyword(s): SOYBEAN, VELVETLEAF, COMPONENT YIELD, WEEDING TIME
 
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