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Table 3 Effect of foliar application of B2O3 and ZnO nanoparticles on leaf pigments 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. Chlorophyll a (mg/g f.w) Chlorophyll b (mg/g f.w) Carotene (mg/g f.w)
2017 2018 2017 2018 2017 2018
T0 1.33 bcd 1.32 d 0.47 e 0.47 d 0.42 ef 0.66 d
T1 1.03 d 1.55 b 0.56 b 0.56 ab 0.39 g 0.69 cd
T2 1.49 abc 1.37 cd 0.54 bc 0.50 c 0.53 a 0.68 d
T3 1.06 d 1.33 cd 0.37 f 0.50 c 0.50 b 0.68 d
T4 1.40 abc 1.40 c 0.52 cd 0.52 c 0.44 d 0.72 bc
T5 1.63 ab 1.61 ab 0.59 a 0.59 a 0.43 d 0.75 a
T6 1.70 a 1.63 a 0.58 a 0.56 b 0.40 fg 0.69 cd
T7 1.27 cd 1.33 cd 0.50 d 0.50 c 0.42 de 0.67 d
T8 1.65 ab 1.64 a 0.59 a 0.58 a 0.46 c 0.73 ab
  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