Paper Information

Title: 

INTERACTION EFFECT OF REDROOT PIGWEED DENSITIES AND IRRIGATION REGIMES ON CORN KERNEL YIELD AND YIELD COMPONENTS

Type: PAPER
Author(s): EDALAT MOHSEN,GHADIRI HOSSEIN
 
 
 
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 EFFECT OF REDROOT PIGWEED DENSITIES AND IRRIGATION REGIMES ON THE YIELD AND YIELD COMPONENTS OF CORN, AN EXPERIMENT WAS PERFORMED IN SPRING AND SUMMER OF 2008-2009 IN AGRICULTURAL RESEARCH STATION OF SHIRAZ UNIVERSITY LOCATED IN BADJGAH. EXPERIMENTAL DESIGN WAS SPLIT PLOT WITH THREE REPLICATIONS. TREATMENTS INCLUDED SIX LEVELS OF PIGWEED DENSITY (0, 5, 10, 20, 30, AND 40 PLANTS PER METER OF CORN PLANTING ROW) AND 3 IRRIGATION REGIMES (T1: 100% FIELD CAPACITY, T2: 125% FIELD CAPACITY AND T3: 75% FIELD CAPACITY). RESULTS SHOWED THAT THE HIGHEST (1147.1 GM-2) AND THE LOWEST KERNEL YIELD (457.1 GM-2) WERE OBTAINED FROM WEED FREE AND 40 WEEDS M-1 TREATMENTS, RESPECTIVELY. IRRIGATION REGIMES HAD SIGNIFICANT EFFECT ON KERNEL YIELD SO THAT THE MAXIMUM AND MINIMUM KERNEL YIELD WERE OBSERVED IN T2 (900 GM-2) AND T3 (594 GM-2). LIKEWISE, THE HIGHEST AND THE LOWEST AMOUNTS FOR KERNEL YIELD COMPONENTS OBTAINED FROM T2- WEED FREE PLOTS AND T3-40 WEEDS M-1, RESPECTIVELY. KERNEL YIELD WAS MAXIMUM IN T2-WEED A FREE PLOT WHICH WAS NOT SIGNIFICANTLY DIFFERENT FROM T1-WEED FREE AND T2-5 WEED M-1.

 
Keyword(s): YIELD, YIELD COMPONENTS, WEED, IRRIGATION REGIME
 
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