ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

A method for the simultaneous measurement of gas exchange and diffusion resistance under various gas conditions.

Peppelenbos, H. W.; Jeksrud, W. K.;

Acta Horticulturae Year: 1998 Issue: No. 464 Pages: 333-338 Ref: 15 ref.

1998

บทคัดย่อ

A method is described that enables the simultaneous measurement under various gas conditions of gas exchange rates and diffusion resistance without influencing the product. Neon (Ne) was used as a tracker. Its concentration was brought to 110 Pa after closing a flask containing an apple kept at a specific gas condition (samples of Golden Delicious, Elstar and Cox's Orange Pippin were used in the experiments). Changes in O2 and CO2 concentration were used to calculate gas diffusion resistance. The method enables assessment of important physiological data by a simple extension of standard gas exchange measurements. One benefit of using Ne instead of ethane, in addition to a possible influence of ethylene concentrations on ethane measurements, is that ethane production is found in aging plant tissues and can influence the measurements.