NO - Besoin d'assistance

Composition of tomatoes and tomato products in antioxidants (WG1) page 26
__________________________________________________________________________________________
Siviero et al.(2000) have measured fruit lycopene content in hybrids “HP” (high
pigment) cultivated in open field in comparison with Perfectpeel a hybrid not “HP” as control
(Table 10). They found variations ranging almost from 1- to 2-fold.
Table 10. Lycopene content in tomato hybrids “HP” compared with Perfectpeel not
“HP” (after Siviero et al, 2000)
Hybrid Gardner colour a/b Lycopene (mg/kg
fresh matter)
H-01 2.39 118 2510
H-04 2.35 111 2620
DRD 8133 2.51 170 3750
DR 10747 2.60 188 3460
DR 10750 2.40 125 2570
ES 85/95 2.25 113 2520
Nun 1365 2.53 137 3020
Nun 4994 2.40 129 2930
PLX 1129 2.36 101 2440
PS 1617 2.49 175 4210
Forum 2.57 146 3540
Perfectpeel (control) 2.34 116 2710
6.1.4.2. Water
Lycopene (mg/kg
dry matter)
In a study of the effect of 4 irrigation regimes (40, 50, 60 and 70% depletion of
available soil moisture) on tomato cultivars Pusa Ruby, Pusa Early Dwarf and Sioux, the
lycopene content in tomato fruit was reduced by moisture stress (Naphade, 1993). If this were
verified, there could be an antagonism between improving some basic technological
characteristics of the tomato fruit juice (dry matter content, °Brix, acidity) and improving
lycopene content by means of water management at the field level.