Effect of aluminum on the in vitro activity of acid phosphatases of four potato clones grown in three growth systems

acid phosphatase aluminio aluminium brotes clone clones contaminantes cultivo protegido cultivo sin tierra cultivos de invernadero cultural methods culture hydroponique culture sans sol culture sous abri enzyme activity enzyme inhibitors estres fitotoxicidad greenhouse crops hydroponics in vitro experimentation inhibidores de enzimas inhibiteur d'enzyme inhibition metabolism metabolisme metabolismo mode de culture papa phosphatase acide phytotoxicity plante de serre polluant pollutants pomme de terre potatoes pousse protected cultivation racine resistance to injurious factors roots shoots soilless culture solanum tuberosum stress