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Agro-Science
Journal of Tropical Agriculture, Food, Environment and Extension
 

ISSN 1119-7455
   
 
         
 
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Article No 4 of Volume 3.2 (2004)
 
    
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CONTROLLING BEAN POD MOTTLE VIRUS (BPMV) (GENUS COMOVIRUS) OF SOYBEAN WITH SPATIAL ARRANGEMENT OF MAIZE-SOYBEAN IN SOUTHEASTERN NIGERIA

Ugwuoke K. I. and  Iloba C.

Department of Crop Science University of Nigeria, Nsukka

 

 

ABSTRACT

 

Field cultural practices of controlling Bean Pod Mottle Virus (BPMV) (genus comovirus) disease, involving thirteen spatial arrangements of maize/soybean (M:S) were studied for 2 years in Nsukka agro-ecological zone of Nigeria. Factorial arrangement of treatments in a randomized complete block design with three replications was used. Thirteen spatial arrangements of maize/soybean (M:S) constituted a factor while the health conditions of soybean plants (healthy and infected) constituted another factor. The thirteen spatial arrangements of maize/soybean (M:S) studied differed significantly in the incidence of BPMV disease. Spatial arrangement of 2:4 recorded the highest (82.5%) incidence, though statistically similar with spatial arrangements of 0:4(sole soyabean) (71.3%), 1:4 (76.3%) and 3:4 (70.0%). spatial arrangement of 3:1 recorded the lowest (7.5%) incidence though statistically similar with spatial arrangement of 1:1 (13.8%) and 1:2 (18.9%). Spatial arrangement of 1:2 recorded the highest (69.4) number of pods and grain yields  (1.42t/ha), while the spatial arrangement,  3:1 recorded the lowest (40.80) number of pods and grain yield.  Health conditions of the soybean plant affected significantly the yield. Healthy soybean plant produced the highest (1.49t/ha) grain yield while infected soybean plant produced the lowest  grain yield.of 0..82 t / ha.

 

Key words: Spatial arrangement,  Bean leaf beetle,  Bean  pod Mottl virus, Maize, Soybean.

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Date:24/09/2018
 
     
 
 
 
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