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Table 4 Impact of tree pruning treatment on annual tree growth, computed as the differences of projected canopy area, tree height, and crown volume between the date 3 (1-year after pruning) and the date 2 (after pruning)

From: Quantifying pruning impacts on olive tree architecture and annual canopy growth by using UAV-based 3D modelling

Pruning treatments

Area

(Date 3 − Date 2)

Height

(Date 3 − Date 2)

Volume

(Date 3 − Date 2)

Mean ± SD (m2)

%a

Mean ± SD (m)

%a

Mean ± SD (m3)

%a

Mechanical

3.25 ± 1.50

37.37

−0.08 ± 0.19

−2.32

4.66 ± 4.60

23.65

Adapted

5.34 ± 1.71

71.14

−0.05 ± 0.24

−1.14

11.58 ± 4.98

58.51

Traditional

5.39 ± 2.03

64.27

0.06 ± 0.20

1.66

13.90 ± 6.06

61.49

  1. aAverage percentage of increase (+) or decrease (−) of each tree geometric feature between the date 3 and the date 2, as follow: % = (feature_date3 − feature_date2)/(feature_date2)
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Plant Methods

ISSN: 1746-4811