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Table 8 Influence of biostimulants on leaf mineral contents of ‘Yaghouti’ grapevine under WW and DS conditions

From: Biostimulant-induced drought tolerance in grapevine is associated with physiological and biochemical changes

Irrigation regimes

Biostimulants

N (%)

P (%)

K (%)

Fe (ppm)

Zn (ppm)

WW

CON

1.37 ± 0.12 c

0.31 ± 0.06 e

1.07 ± 0.04 d

166.43 ± 1.52 g

17.30 ± 0.98 ef

AA

1.42 ± 0.11 c

0.41 ± 0.04 cd

1.34 ± 0.02 c

183.62 ± 1.34 de

22.70 ± 0.60 c

HA

1.43 ± 0.11 c

0.42 ± 0.03 cd

1.36 ± 0.04 c

187.56 ± 2.51 cd

23.03 ± 0.30 c

FA

1.43 ± 0.12 c

0.42 ± 0.06 cd

1.37 ± 0.05 c

189.45 ± 1.44 c

20.96 ± 0.75 d

SE

1.62 ± 0.09 b

0.44 ± 0.06 c

1.46 ± 0.08 c

200.33 ± 1.46 a

26.83 ± 0.28 a

DS

CON

1.44 ± 0.10 c

0.36 ± 0.09 de

1.12 ± 0.05 d

157.62 ± 4.04 h

16.03 ± 0.95 f

AA

1.65 ± 0.09 b

0.71 ± 0.07 b

1.64 ± 0.04 b

179.32 ± 1.15 ef

20.68 ± 1.21 d

HA

1.64 ± 0.11 b

0.74 ± 0.06 b

1.73 ± 0.13 ab

186.01 ± 2.00 cd

18.56 ± 1.19 e

FA

1.69 ± 0.12 b

0.69 ± 0.04 b

1.66 ± 0.14 b

177.10 ± 1.73 f

20.13 ± 0.51 d

SE

1.83 ± 0.14 a

0.81 ± 0.06 a

1.79 ± 0.09 a

195.34 ± 5.03 b

24.66 ± 0.57 b

Significance

     

Irrigation regime

*

**

*

*

*

Biostimulants

**

**

**

**

**

Irrigation regime × biostimulants

*

**

**

*

**

  1. Mean values followed by the similar letters within a column are not significantly different from each other at P ≤ 0.05 (Duncan’s multiple range test). * and ** are significant at P ≤ 0.05 and at P ≤ 0.01, respectively. Values are means of three replicates ± SD