Editor-in-chief                                 

Prof. Bernard W. Ikua             
Jomo Kenyatta University of Agriculture & Technology, Kenya

Assistant Editor-in-Chief                

Dr. Rehema Ndeda         
Jomo Kenyatta University of Agriculture & Technology, Kenya

Editors                                                

Dr. O. Mutuku Muvengei          
Jomo Kenyatta University of Agriculture & Technology, Kenya

Dr. Hiram M. Ndiritu              
Jomo Kenyatta University of Agriculture & Technology, Kenya

Prof. Urbanus N. Mutwiwa      
Jomo Kenyatta University of Agriculture & Technology, Kenya

Prof. John Nderu                   
Jomo Kenyatta University of Agriculture & Technology, Kenya

Prof. Abiero Gariy 
Jomo Kenyatta University of Agriculture & Technology, Kenya

Dr. Kuria Kimotho                      
Jomo Kenyatta University of Agriculture & Technology, Kenya

Associate Editors                            

Prof. Jaroslaw Milewski   
Warsaw University of Technology, Poland

Prof. Krzysztof Badyda         
Warsaw University of Technology, Poland

Prof. Asfaw Beyene               
San Diego State University, USA

Prof. Hisataka Tanaka          
Tottori University, Japan

Prof. Eiji Tomita                    
Okayama University, Japan

Prof. Ryoji Waka                   
Tottori University, Japan

Prof. George N. Nyakoe        
Jomo Kenyatta University of Agriculture & Technology, Kenya

Prof. John Kihiu                     
Jomo Kenyatta University of Agriculture & Technology, Kenya

Prof. S. P. Ng’ang’a               
Jomo Kenyatta University of Agriculture & Technology, Kenya

Prof. Enrico Sciuba                 
University Roma Sapienza, Italy

Prof. Paul N. Kioni                 
Dedan Kimathi University of Technology, Kenya

Dr. Alphonse Niyibizi            
Dedan Kimathi University of Technology, Kenya

Prof. Ron Zevenhoven          
Abo Akademi University, Finland

Prof.  Eng. Bancy Mati                     
Jomo Kenyatta University of Agriculture & Technology, Kenya

Dr. Benson B. Gathitu           
Jomo Kenyatta University of Agriculture & Technology, Kenya

Prof. George O. Rading        
University of Nairobi, Kenya

Dr. Kibet Langat                   
Jomo Kenyatta University of Agriculture & Technology, Kenya

Prof. Stanley Kamau               
Jomo Kenyatta University of Agriculture & Technology, Kenya

Dr. Robert Kiplimo                
Jomo Kenyatta University of Agriculture & Technology, Kenya

Dr. Bernard Rop                    
Jomo Kenyatta University of Agriculture & Technology, Kenya

Dr. Eng. James Messo Raude                    
Jomo Kenyatta University of Agriculture & Technology, Kenya

Dr.  Eng. Gareth Kituu                     
Jomo Kenyatta University of Agriculture & Technology, Kenya

Dr. Felix Mutua                      
Jomo Kenyatta University of Agriculture & Technology, Kenya

Eng. J. M. Weru                     
Jomo Kenyatta University of Agriculture & Technology, Kenya

Ms. Lina Owino                             
Jomo Kenyatta University of Agriculture & Technology, Kenya

Dr. Jeremiah Kiptala             
Jomo Kenyatta University of Agriculture & Technology, Kenya

Prof. James Wambua Kaluli                  
Jomo Kenyatta University of Agriculture & Technology, Kenya

Dr. Thomas Mbuya                 
University of Nairobi, Kenya

Prof. Francis Oduori              
University of Nairobi, Kenya

Prof. D. B. O. Konditi              
Technical University of Kenya, Kenya

Dr. -Ing. Jackson G. Njiri                   
Jomo Kenyatta University of Agriculture & Technology, Kenya

Dr. Eng. Kenneth Njoroge             
Jomo Kenyatta University of Agriculture & Technology, Kenya

Dr. Evan M. N. Wanjiru                       
Jomo Kenyatta University of Agriculture & Technology, Kenya

Linguistic Editors                            

Ir. Anthony Kariuki Muchiri                    
Jomo Kenyatta University of Agriculture & Technology, Kenya          

Ms. Esther W. Gituku                       
Jomo Kenyatta University of Agriculture & Technology, Kenya

Ms. Lucy Wanja                           
Jomo Kenyatta University of Agriculture & Technology, Kenya

Mr. Gilbert Bett                            
Jomo Kenyatta University of Agriculture & Technology, Kenya

Mr. Oteri Omae                             
Jomo Kenyatta University of Agriculture & Technology, Kenya

Mr. Elijah Munyao                        
Jomo Kenyatta University of Agriculture & Technology, Kenya

Graphics Editor                                

Evans Kibiro                         
Jomo Kenyatta University of Agriculture & Technology, Kenya