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Table 2 Shoot length, Leaf mass per area (LMA), dry biomass of leaf (DMleaves), stem (DMstem) and roots (DMroot) measured for 5C and Riesling x 5C (RR) plants 8 weeks after the beginning of treatments (n = 7–10). W = well-watered plants; D = drought-stressed; C = control, non-phylloxerated; P = root phylloxerated. * indicates statistically significant differences within the factors (Irrigation or Infestation). A significant interaction between factors (Irr x Inf) was observed in Shoot length (within C level: W > D; within P level: W > D) and DMroots (within D level: C > P) measured in RR

From: Gas exchange, biomass and non-structural carbohydrates dynamics in vines under combined drought and biotic stress

  5C RR
Traits Irrigation Infestation Interaction Irrigation Infestation Interaction
  W D C P Irr x Inf W D C P Irr x Inf
Shoot length, m 5.3 ± 0.2 2.0 ± 0.2* 3.8 ± 0.2 3.5 ± 0.2 n.s. 3.5 ± 0.1 1.4 ± 0.1* 2.4 ± 0.1 2.5 ± 0.1 *
LMA, g cm−2 5.7 ± 0.1 5.6 ± 0.1 5.6 ± 0.1 5.7 ± 0.1 n.s. 5.8 ± 0.1 5.9 ± 0.2 6.1 ± 0.1 5.6 ± 0.2* n.s.
DMleaves, g 31.0 ± 1.6 13.9 ± 1.5* 23.0 ± 1.7 21.9 ± 1.4 n.s. 23.7 ± 0.9 11.4 ± 0.9* 17.6 ± 1.0 17.4 ± 0.9 n.s.
DMstem, g 26.8 ± 1.3 9.1 ± 1.2* 18.7 ± 1.3 17.2 ± 1.2 n.s. 22.5 ± 1.0 9.0 ± 0.9* 15.7 ± 1.0 15.8 ± 0.9 n.s.
DMroots, g 21.2 ± 1.3 23.8 ± 1.2 22.0 ± 1.3 23.1 ± 1.2 n.s. 22.2 ± 1.0 21.9 ± 1.0 22.6 ± 1.0 21.5 ± 1.0 *