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Table 3.

Total carbohydrates and macronutrients concentration in pruned wood recorded on Viognier B and Carignan N grapevines in growing season 2017.

Treatment Pruning mass Total carbohydrates (starch+
  (Kg/vine) (Kg/ha) soluble sugars) (kg/ha) N P K Ca Mg
Viognier B
DW-1 0. 08 a 324 a 47 b 3.22 b 0.39 b 1.93 b 2.03 ab 0.30 ab
DW-2 0.13 b 528 b 81 d 4.45 c 0.53 c 3.38 d 2.60 b 0.39 bc
TWW-C1 0.12 b 488 b 73 c 4.41 c 0.49 c 2.77 c 2.65 bc 0.46 cd
TWW-C2 0.14 bc 572 bc 86 e 5.01 d 0.57 c 3.47 d 3.32 c 0.53 d
NI 0.06 a 256 a 38 a 2.49 a 0.29 a 1.35 a 1.53 a 0.25 a
  Sig. * * * * * * * *

Carignan N
DW-1 0.50 a 2016 a 259 b 11 a 1.75 a 10 a 9 a 1.68 a
DW-2 0.64 b 2560 b 320 c 15 b 2.39 bc 14 b 11 b 2.05 b
TWW-1 0.61 b 2452 b 257 b 18 b 2.37 b 15 b 10 ab 2.04 b
TWW-2 0.75 c 2988 c 374 d 20 c 2.69 c 18 c 13 c 2.39 c
NI 0.48 a 1912 a 210 a 13 a 1.59 a 9 a 9 a 1.72 a
  Sig. * * * * * * * *

Data are means of each treatment. Each value represents n = 30 and 10 by treatment for pruning mass and nutrients content, respectively. Different letters within columns for each grapevine indicate a significant difference at p > 0.05 (LSD test). *Denote a significant difference between treatments. LA, leaf area; ns, not significant; nd, not determined; DW, drinking water; TWW-C treated wastewater quality C; NI, non-irrigated; 1, standard irrigation; 2, reinforced irrigation.

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