## 3 Results
#### 3.1.3 Vegetative Development and Yield Response  
In the 3-year period (2018-2020), the most vigorous (greater TLA, pruning weight, and shoot length) and productive (higher yield) clones were 94, 188, and 4, in this order, and the least vigorous and productive was clone 360 (Table 5). The most productive clones also showed the highest WUE\({}_{\text{yield}}\). All of the yield parameters were significantly affected by the clone, with clones 188 and 94 showing the highest number of clusters, cluster weight, and berry size compared to the rest of the clones, and clone 360 displaying the lowest values of these yield parameters and the lowest WUE\({}_{\text{yield}}\). In addition, sink/source ratios indicated that clone 276, followed by 360 and 373, showed the highest TLA/yield ratios, and 188 and 94, the lowest ratios (Table 5). Furthermore, TLA/pruning weight ratio were lower in clones 276 and 94 compared to 372 and 373 (with the highest values) (Table 5). The analysis \begin{table}
\begin{tabular}{c c c c c c c c c c} \hline \hline  & & & & & & & & & \\ \hline
**Clone** & **N** & **P** & **K** & **Ca** & **Mg** & **B** & **Fe** & **Cu** & **Mn** & **Zn** \\ \hline
4 & 2.31 & 0.107 & 0.62a & 2.03 & 0.31b & 56.0c & 71.1a & 11.4a & 103.9 ab & 21.3 \\
94 & 2.30 & 0.111 & 0.65a & 2.06 & 0.34b & 44.8b & 82.9 ab & 8.9a & 94.5 abc & 20.7 \\
188 & 2.35 & 0.112 & 0.63a & 2.12 & 0.34b & 41.8 ab & 87.1 ab & 8.5a & 86.2a & 20.8 \\
276 & 2.14 & 0.114 & 0.73b & 1.93 & 0.28a & 44.1 ab & 98.9b & 8.5a & 100.6 abc & 23.3 \\
360 & 2.19 & 0.112 & 0.60a & 2.09 & 0.38c & 51.9c & 79.2 ab & 19.4b & 111.5 bcd & 24.9 \\
372 & 2.19 & 0.107 & 0.62a & 1.99 & 0.33b & 37.1a & 73.9a & 10.8a & 126.6d & 24.5 \\
373 & 2.18 & 0.106 & 0.63a & 1.97 & 0.32b & 39.9 ab & 69.2a & 8.0a & 117.0 cd & 21.1 \\
**Treat.** & & & & & & & & & & \\ Control & 2.26 & 0.111 & 0.64 & 2.03 & 0.33 & 43.2 & 81.5 & 10.9 & 103.5 & 22.0 \\ Stress & 2.21 & 0.109 & 0.63 & 2.02 & 0.33 & 47.0 & 79.1 & 10.6 & 108.0 & 22.7 \\
**Clone \(\times\) Treat.** & & & & & & & & & & \\
4 & Control & 2.30b & 0.106 & 0.61 abc & 1.86 & 0.30b & 48.3 & 64.8 & 11.4 & 102.8 & 20.1 \\  & Stress & 2.31b & 0.108 & 0.63 abcd & 2.19 & 0.32 bc & 63.7 & 77.4 & 11.3 & 105.1 & 22.5 \\
94 & Control & 2.25b & 0.106 & 0.62 abc & 2.11 & 0.32 bc & 44.5 & 89.2 & 9.3 & 105.3 & 20.3 \\  & Stress & 2.36b & 0.116 & 0.67 bcd & 2.02 & 0.36 ede & 45.2 & 76.7 & 8.6 & 83.7 & 21.0 \\
188 & Control & 2.35b & 0.113 & 0.69 cd & 2.02 & 0.32 bc & 39.3 & 95.4 & 7.8 & 88.2 & 23.2 \\  & Stress & 2.34b & 0.112 & 0.57 ab & 2.22 & 0.36 ede & 44.3 & 78.9 & 9.2 & 84.2 & 18.4 \\
276 & Control & 2.35b & 0.119 & 0.74d & 1.95 & 0.33 bc & 44.3 & 90.4 & 9.0 & 87.6 & 22.0 \\  & Stress & 1.93a & 0.109 & 0.72 cd & 1.90 & 0.24a & 43.9 & 107.4 & 7.9 & 113.7 & 24.6 \\
360 & Control & 2.22b & 0.116 & 0.53a & 2.19 & 0.39e & 50.5 & 82.9 & 19.6 & 114.7 & 24.6 \\  & Stress & 2.16 ab & 0.108 & 0.67 bcd & 1.99 & 0.38 de & 53.4 & 75.5 & 19.2 & 108.3 & 25.1 \\
372 & Control & 2.20 ab & 0.109 & 0.63 abc & 2.14 & 0.31 bc & 35.8 & 75.4 & 10.6 & 116.8 & 22.6 \\  & Stress & 2.18 ab & 0.104 & 0.61 abc & 1.85 & 0.35 bcde & 38.4 & 72.3 & 10.9 & 136.3 & 26.4 \\
373 & Control & 2.19 ab & 0.107 & 0.69 cd & 1.97 & 0.32 bc & 39.7 & 72.7 & 8.8 & 109.0 & 21.1 \\  & Stress & 2.18 ab & 0.105 & 0.57 ab & 1.96 & 0.33 bcd & 40.1 & 65.8 & 7.2 & 125.0 & 21.1 \\ \hline
**ANOVA** & & & & & & & & & & \\ Clone & ns & ns & ** & ns & ** & & & & & \\ Treatment & ns & ns & ns & ns & & ns & ns & ns & ns \\ Interaction & * & ns & ** & ns & & ns & ns & ns & ns \\ \hline \end{tabular}
\end{table} 
Table 4: Leaf nutrient concentrations of Monastrell grapevines at veraison for each clone, irrigation treatment, and the interaction (clones \(\times\) irrigation treatment) during the 3-year period 2018–2020. N, P, K, Ca, and Mg are expressed as % in DW, and Fe, Cu, Mn, Zn, and B as ppm.