Heuchera Creme Brulee and Mahogany Medicinal Value under Water Stress and Oligosaccharide (COS) Treatment

Table 2

Effect of irrigation intervals and oligosaccharides treatment on total carbohydrate, K, Ca, and proline content in the leaves oftwo Heuchera cultivars in two successive seasons. Values are means (± sd).

Water interval	Oligosaccharides treatment; (ppm)		Total carbohydrates (% DW)		K (mg g^−1 DW)		Ca (mg g^−1 DW)		Proline (mg g^−1 DW)
			2017	2018	2017	2018	2017	2018	2017	2018
2DWI	0	Creme Brulee	13.45 ± 0.1b	13.37 ± 0.1b	19.7 ± 0.1d	19.5 ± 0.5d	3.76 ± 0.05b	3.63 ± 0.04b	1.35 ± 0.05c	1.32 ± 0.01c
	50		14.33 ± 0.1a	14.22 ± 0.1ab	24.8 ± 0.1b	23.9 ± 0.1b	4.12 ± 0.0a	4.11 ± 0.2a	1.44 ± 0.03b	1.41 ± 0.00cb
	200		14.53 ± 0.2a	14.67 ± 0.1a	25.8 ± 0.2b	24.9 ± 0.1b	4.15 ± 0.09a	4.09 ± 0.03a	1.47 ± 0.01b	1.44 ± 0.03b
	500		13.53 ± 0.1b	13.49 ± 0.1b	19.9 ± 0.0d	19.4 ± 0.1d	3.85 ± 0.01b	3.79 ± 0.05b	1.37 ± 0.01c	1.35 ± 0.02c
6DWI	0		12.19 ± 0.2c	12.05 ± 0.1c	21.5 ± 0.1b	21.3 ± 0.3c	3.63 ± 0.06b	3.65 ± 0.06b	1.48 ± 0.02b	1.46 ± 0.01ab
	50		12.89 ± 0.1cb	12.51 ± 0.1c	27.3 ± 0.3a	26.8 ± 0.1a	4.05 ± 0.03a	3.97 ± 0.01a	1.56 ± 0.03a	1.53 ± 0.03a
	200		12.87 ± 0.1cb	12.98 ± 0.1bc	27.9 ± 0.1a	27.7 ± 0.1a	4.19 ± 0.07a	4.11 ± 0.04a	1.58 ± 0.02a	1.55 ± 0.02a
	500		12.32 ± 0.2c	12.31 ± 0.1c	22.2 ± 0.2c	21.8 ± 0.2c	3.78 ± 0.06b	3.70 ± 0.05b	1.49 ± 0.03ab	1.47 ± 0.01ab
2DWI	0	Mahogany	15.32 ± 0.1	15.05 ± 0.1b	21.3 ± 0.1c	21.7 ± 0.3c	3.61 ± 0.04b	3.67 ± 0.08b	1.42 ± 0.02c	1.38 ± 0.01c
	50		15.99 ± 0.1ab	15.91 ± 0.0a	26.4 ± 0.1b	26.1 ± 0.1b	3.97 ± 0.03a	3.94 ± 0.05a	1.55 ± 0.04b	1.46 ± 0.01b
	200		16.30 ± 0.1a	16.13 ± 0.3a	26.8 ± 0.1b	26.6 ± 0.3b	4.06 ± 0.06a	4.01 ± 0.06a	1.58 ± 0.08b	1.49 ± 0.04b
	500		15.51 ± 0.1b	15.27 ± 0.3b	23.3 ± 0.3d	22.6 ± 0.1c	3.73 ± 0.04b	3.75 ± 0.03b	1.47 ± 0.01c	1.41 ± 0.01c
6DWI	0		14.41 ± 0.2c	14.12 ± 0.3c	25.5 ± 0.1b	24.7 ± 0.1b	3.58 ± 0.02b	3.68 ± 0.02b	1.56 ± 0.03b	1.51 ± 0.04b
	50		15.45 ± 0.1b	15.13 ± 0.1b	29.9 ± 0.1a	28.9 ± 0.3a	3.93 ± 0.01a	3.95 ± 0.01a	1.70 ± 0.01a	1.69 ± 0.02a
	200		15.55 ± 0.1b	15.25 ± 0.5b	30.3 ± 0.1a	29.7 ± 0.2a	3.93 ± 0.01a	3.96 ± 0.04a	1.74 ± 0.03a	1.71 ± 0.02a
	500		14.37 ± 0.1c	14.24 ± 0.3c	26.4 ± 0.1a	25.8 ± 0.3b	3.63 ± 0.05b	3.67 ± 0.02b	1.59 ± 0.02b	1.54 ± 0.01b

Means followed by different letters within columns are significantly different, based on LSD test (P ≤ 0.05).