The Relation between Pod Dehiscence, Relative Humidity and Moisture Equilibrium in Birdsfoot Trefoil, Lotus corniculatus
1957
Metcalfe, D. S. | Johnson, I. J. | Shaw, R. H.
SynopsisBirdsfoot trefoil pods of clone B74 dehisced at a relative humidity of 29.5% but not at 35%. Pods from a bulk sample of the Empire strain dehisced at a relative humidity of 40% suggesting that differences occur among lots of mature pod. There was a close interdependence of relative humidity, moisture equilibrium and pod splitting. At low relative humidity, moisture content of pods was, reduced rapidly to the point of dehiscence. Temperature, a factor in relative humidity, varied as much as 10° F. from air temperature. Increase of pod temperature in full sunlight may be enough to reduce relative humidity and pod moisture and bring about pod dehiscence.
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