. 2021 Jul 1;10(7):1524. doi: 10.3390/foods10071524

Table 4.

Effects of different temperature levels on kale growth at different cultivation periods.

Sampling Time	Temp. Level (°C)	Growth Variables
Sampling Time	Temp. Level (°C)	P_Height (mm)	P_Width (mm)	P_Weight (g)	No_Leaf	Stem dia. (mm)	Chlor_Level (ppm)	L_Length (mm)	L_Width (mm)	L_Weight (g)
2 weeks	14	95.0 ± 4.5 ^a	161.7 ± 8.1 ^b	11.9 ± 1.2 ^b	7.0 ± 0.0 ^a	2.4 ± 0.1 ^a	46.9 ± 1.0 ^a	8.4 ± 0.5 ^c	7.4 ± 0.4 ^c	2.9 ± 0.2 ^b
	17	99.3 ± 4.7 ^a	186.0 ± 24.3 ^ab	12.6 ± 0.3 ^a	6.7 ± 3.7 ^a	2.5 ± 0.2 ^a	49.1 ± 0.6 ^a	10.6 ± 0.2 ^b	9.4 ± 0.4 ^b	5.2 ± 0.6 ^a
	20	84.7 ± 1.2 ^a	167.0 ± 22.7 ^b	13.3 ± 0.2 ^a	7.0 ± 0.1 ^a	2.7 ± 0.1 ^a	53.4 ± 5.4 ^a	13.0 ± 0.4 ^a	11.3 ± 0.6 ^a	6.3 ± 0.4 ^a
	23	92.3 ± 11 ^a	196.0 ± 14.2 ^ab	13.0 ± 0.3 ^a	7.0 ± 0.1 ^a	2.8 ± 0.9 ^a	57.0 ± 2.8 ^a	12.8 ± 0.8 ^a	11.1 ± 0.6 ^ab	6.0 ± 1.1 ^a
	26	90.3 ± 8.9 ^a	215.0 ± 14.1 ^a	13.3 ± 0.3 ^a	7.0 ± 0.8 ^a	2.8 ± 0.2 ^a	52.0 ± 0.3 ^a	12.6 ± 0.9 ^a	11.3 ± 0.4 ^a	5.8 ± 0.2 ^a
4 weeks	14	115.3 ± 8.3 ^b	274.3 ± 15.0 ^a	21.3 ± 4.1 ^a	11.1 ± 0.2 ^a	13.0 ± 0.0 ^a	55.5 ± 4.3 ^a	19.9 ± 0.8 ^c	12.6 ± 0.46 ^b	9.2 ± 0.9 ^b
	17	129.7 ± 5.3 ^b	260.3 ± 39.4 ^a	23.6 ± 6.2 ^a	12.7 ± 0.5 ^a	14.3 ± 0.5 ^a	61.2 ± 2.4 ^a	26.7 ± 0.2 ^b	17.1 ± 1.1 ^ab	16.0 ± 3.3 ^ab
	20	143.3 ± 6.5 ^ab	286.3 ± 13.5 ^a	28.3 ± 4.3 ^a	12.0 ± 0.7 ^a	15.7 ± 0.4 ^a	48.4 ± 15.1 ^a	31.2 ± 2.0 ^ab	19.0 ± 1.4 ^a	19.1 ± 6.1 ^a
	23	137.3 ± 8.6 ^ab	278.3 ± 36.5 ^a	25.4 ± 3.2 ^a	13.5 ± 1.3 ^a	17.7 ± 0.4 ^a	58.5 ± 1.7 ^a	31.8 ± 2.5 ^ab	20.2 ± 1.8 ^a	20.0 ± 3.8 ^a
	26	176.3 ± 27.7 ^a	277.0 ± 12.8 ^a	22.2 ± 4.8 ^a	10.0 ± 0.4 ^a	15.6 ± 0.9 ^a	53.6 ± 4.3 ^a	37.0 ± 2.5 ^a	19.8 ± 1.5 ^a	20.1 ± 5.7 ^a

^{a, b, c} Different letters in the same column indicate a significant difference (p ≤ 0.05). P_height: plant height, P_width: plant width, P_weight: plant weight, No_leaf: number of leaves, Stem dia.: stem diameter, Chlor_level: chlorophyll level, L_length: leaf length, L_width: leaf width, L_weight: leaf weight.