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Table 6 The combination effect of mineral oil, potassium sulfate, and calcium sulfate on berry quality characteristic and yield components of Sultana grapevine

From: Effects of foliar spray of agricultural grade mineral oil in springtime, in combination with potassium and calcium sulfates on the phenological and biophysical indices of clusters, and foliar nutritional levels in grapevine (Vitis vinifera L.) cv. Sultana (Id. Thompson seedless, Sultanina)

Treatments pH TA TSS
(˚Brix)
2017 2018 2017 2018 2017 2018
V0K0C0 3.38 c 3.38 c 2.54 cd 2.54 bc 18.2 d 17.9 de
V0K1C0 3.49 ab 3.62 a 2.55 ab 2.58 a 22.1 ab 22.4 bcd
V0K0C1 3.40 c 3.40 bc 2.51e 2.54 abc 19.4 cd 19.7 d
V0K1C1 3.55 a 3.65 a 2.53 de 2.53 bcd 24.3 a 25.4 a
V1K0C0 3.35 c 3.37 c 2.57 a 2.58 a 18.9 d 18.8 de
V1K1C0 3.42 bc 3.47 b 2.56 ab 2.56 ab 21.4 bc 23.3 bc
V1K0C1 3.42 bc 3.39 bc 2.56 ab 2.57 a 19.6 bcd 21.5 cd
V1K1C1 3.52 a 3.61 a 2.53 de 2.52 cd 23.9 b 23.8 b
  1. The means with common letters in each column according to Duncan's test are not significantly different (P < 0.05). V0 = 0.00% mineral oil, V1 = 1.00% mineral oil; K0 = 0.00% K2SO4, K1 = 3.00% K2SO4; C0 = 0.00% CaSO4, C1 = 2.00% CaSO4