Search Ontology: 
        
        GO: Biological Process
            photoperiodism
- Term ID
- GO:0009648
- Synonyms
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        - response to day length
- response to night length
- response to photoperiod
 
- Definition
- Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of detection of, or exposure to, a period of light or dark of a given length, measured relative to a particular duration known as the 'critical day length'. The critical day length varies between species. (3)
- References
- Ontology
- GO: Biological Process QuickGO AmiGO
                
                    
                        Phenotype
                    
                    
                
                
            
        
        
    
        
            
                
    
    
    
                
                    
                        Phenotype caused by Genes
                    
                    
                
                
            
        
        
    
        
            
                    
                
        
    
    
    