Table 4 The combination effect of mineral oil, potassium sulfate, and calcium sulfate on phenological indices of Sultana grapevine

V₀K₀C₀

54.2 b

53.4 c

69.0 b

68.50 b

138.5 b

141.50 ab

24.2 cd

24.4 c

V₀K₁C₀

50.1 cd

49.4 d

65.5 c

64.50 c

137.0 b

137.50 c

31. 5 a

35.5 a

V₀K₀C₁

51.0 c

51.1 d

66.5 c

66.50 bc

137.5 b

139.50 bc

27.4 bcd

26.4 bc

V₀K₁C₁

49.5 d

50.3 d

65.0 c

65.50 c

137.0 b

138.50 bc

28.8 ab

30.8 ab

V₁K₀C₀

57.0 a

56.9 a

72.5 a

72.50 a

144.5 a

145.50 a

25.5 cd

24.50 c

V₁K₁C₀

55.5 ab

54.8 b

71.5 a

72.50 a

143.0 a

145.50 a

28.3 abc

28.0 b

V₁K₀C₁

55.0 ab

56.2 a

71.5 a

72.50 a

143.0 a

145.50 a

27.7 bc

28.5 b

V₁K₁C₁

56.5 a

56.7 a

71.5 a

72.50 a

143.5 a

145.50 a

28.7 abc

31.2 ab