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Table 2.

Effect of application of a synthetic auxin on fruit final fresh weight and pedicel vascularization

Experiment and auxin treatment Fruit weight (g) Pedicel diameter (mm) Phloem CSA (mm2) Xylem CSA (mm2)
Expt 1
 Control (none) 77·8a 2·41a 0·68 1·90a
 2,4‐D 83·0b 2·67b 0·75 2·56b
 s.e. 0·6 0·07 0·06 0·04
Expt 2
 Control (none) 57·4a 2·18a 0·64a 1·38a
 2,4‐D 63·0b 2·30b 0·76b 1·54a
 2,4‐DP 64·6b 2·43c 0·83b 1·97b
 s.e. 0·4 0·04 0·04 0·05

2,4‐D (16 mg l–1) was sprayed on 1 April, at the end of anthesis (day 0). 2,4‐DP (75 mg l–1) was sprayed on 3 June (64 DAA). Fruit fresh weight and pedicel characteristics were determined at commercial maturity (7 October; 190 DAA). Data from two experiments performed in different years. Pedicel data are means of 30 determinations.

Within one experiment, values in the same column followed by different superscripts differ at P ≤ 0·05 according to Student’s t‐test (expt 1), or Duncan’s multiple range test.