Frozen versus non-frozen sample preparation for plant tissue phosphorus analysis - 1989 - Printed
Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0010-3624 Tables, graphs, references p. 209-211
Maize and wheat plant tissue samples were frozen or stored and dried normally before analysis for total and inorganic P. Inorganic P was greater whenmaize was frozen at the twelve leaf stage than with the non-freezing procedure; the opposite was found for wheat at Feekes stage five. Freezing increased total P concentration for both maize at the twelve leaf stage and wheat at Feekes stage five. It was concluded that P volatilization losses must have occurred in the non-frozen samples for maize at the twelve leaf stage and wheat at Feekes stage five.