Xylem, phloem and transpiration flows in developing European plums
Fig 5
(A) Developmental time course of the water flow rates through the skin (transpiration) and through the pedicel (xylem and phloem) of fruit of European plum. Values of atmospheric water vapor pressure deficit (VPD) are provided for comparison. (B) Xylem flow rates and (C) transpiration flow rates as affected by VPD. (D) Relationship between xylem flow rate and transpiration flow rate. The vertical dashed line in A indicates the stage II/III transition. Xylem, phloem and transpiration flows were calculated from flows determined for un-treated control fruit, steam-girdled fruit and detached fruit. Data represent means ± SE for 24 h time intervals. For details see Materials and Methods.