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Table 4 δ18OP of trichloroacetic acid-soluble reactive P (TCA P) of the four different parts (roots, stems, old and new leaves) of the plants for the three different treatments (control, + P and − P)

From: A dual isotopic approach using radioactive phosphorus and the isotopic composition of oxygen associated to phosphorus to understand plant reaction to a change in P nutrition

 

δ18OP (‰)

Roots

Stems

Old leaves

New leaves

Treatments

 Control

12.0a, A

14.9a, B

29.8a, C

25.9a, D

 + P

11.5a, A

13.5a, B

27.4b, C

25.7a, D

 − P

12.0a, A

13.9a, B

23.8c, C

24.2b, C

 Pooled SD

0.7

1.1

0.9

0.7

Source of variation (p value)

 Treatment

ns

ns

< 0.001

0.02

  1. Values are means with n = 3 for the control and n = 4 for the + P and − P plants. Small letters indicate significant differences between treatments within the same plant part; capital letters indicate significant differences between plant parts within the same treatment (Tukey’s HSD; α = 0.05). Pooled standard deviation (pooled SD)
  2. ns not significant
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Plant Methods

ISSN: 1746-4811