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Table 4 Effect of foliar application of B2O3 and ZnO nanoparticles on leaf minerals content of Picual cultivar in 2017 and 2018 seasons

From: Effect of foliar application of boron trioxide and zinc oxide nanoparticles on leaves chemical composition, yield and fruit quality of Olea europaea L. cv. Picual

Treat.

N (%)

P (%)

K (%)

Fe (ppm)

Zn (ppm)

B (ppm)

2017

2018

2017

2018

2017

2018

2017

2018

2017

2018

2017

2018

T0

1.72 e

1.53 e

0.214 c

0.219 abc

1.21 d

1.27 d

297.0 b

203.7 g

26.40 g

30.26 cd

28.31 b

35.18 c

T1

1.72 e

1.66 c

0.215 c

0.224 ab

1.50 c

1.33 abcd

297.1 b

224.1 e

27.23 f

29.83 de

28.63 b

35.26 c

T2

1.84 c

1.63 cd

0.216 c

0.225 ab

1.55 bc

1.40 a

265.3 d

199.3 h

28.40 e

30.93 c

28.97 b

38.50 a

T3

1.88 b

1.60 d

0.214 c

0.203 c

1.60 ab

1.37 abc

230.6 f

197.1 i

29.16 d

30.80 c

25.03 cd

28.57 f

T4

1.86 bc

1.61 d

0.218 c

0.209 bc

1.62 ab

1.32 bcd

249.7 e

286.2 c

30.83 b

33.30 ab

25.25 c

35.11 c

T5

1.91 a

2.06 a

0.231 a

0.204 c

1.56 bc

1.28 d

305.1 a

297.6 a

28.33 e

30.23 cd

21.23 e

32.97 d

T6

1.72 e

2.04 a

0.235 a

0.231 a

1.56 bc

1.30 cd

269.0 c

212.8 f

28.06 e

29.20 e

30.35 a

33.07 d

T7

1.75 d

1.74 b

0.224 b

0.231 a

1.57 abc

1.38 ab

223.7 g

231.6 d

32.00 a

34.09 a

24.4 d

31.65 e

T8

1.84 c

1.77 b

0.232 a

0.234 a

1.64 a

1.39 ab

298.0 b

294.4 b

30.16 c

32.86 b

31.08 a

37.50 b

  1. Mean in each column with similar letters is not significantly different at 5% level
  2. T1, nano-boron at 10 ppm; T2, nano-boron at 20 ppm; T3, nano-zinc at 100 ppm; T4, nano-zinc at 200 ppm; T5, nano-boron at 10 ppm + nano-zinc at 100 ppm; T6, nano-boron at 10 ppm + nano-zinc at 200 ppm; T7, nano-boron at 20 ppm + nano-zinc at 100 ppm; T8, nano-boron at 20 ppm + nano-zinc at 200 ppm