Plant protection limited:   Gibberellic acid 

 - England:   Fernhurst Research Station,  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>Powder Vegetative 
<br/><br/><label>Universal Decimal Class. No.: </label>633:581.4