Table 2 Statistical tests of the effects of three fertilization levels on Tr, Gs, Ci, Ls, Pn, and WUEi of P. vulgaris seedlings at various measuring times and soil water availabilities

Effects of fertilization supply on Tr

 45–50

–

–

*

*

*

*

 70–75

*

*

–

*

–

–

Effects of fertilization supply on Gs

 45–50 %

*

*

*

*

–

*

 70–75 %

*

*

–

–

*

*

Effects of fertilization supply on Ci

 45–50

*

–

–

*

*

*

 70–75

*

*

*

*

*

–

Effects of fertilization supply on Ls

 45–50

*

–

–

*

*

*

 70–75

*

*

*

*

*

–

Effects of fertilization supply on Pn

 45–50

*

*

*

*

*

*

 70–75

*

*

*

*

*

–

Effects of fertilization supply on WUEi

 45–50

*

*

*

–

–

*

 70–75

*

*

–

*

*

–