Evaluation of nano-silicon efficiency on compatible solutes and nutrient status of Damask rose affected by in vitro simulated drought stress

Chemical and Biological Technologies in Agriculture

Table 3 Effect of PEG and SiO₂-NPs on K and P of Maragheh and Kashan genotypes

Genotype	Treatment (mg L⁻¹ SiO₂-NPs)	Maragheh	Kashan	Maragheh	Kashan
Drought (PEG g L⁻¹)	Treatment (mg L⁻¹ SiO₂-NPs)	K (mg g⁻¹ DW)	K (mg g⁻¹ DW)	P (mg g⁻¹ DW)	P (mg g⁻¹ DW)
Control	0	15.91 ± 0.2c	9.87 ± 0.3h-j	4.69 ± 0.1d	3.65 ± 0.2hi
	50	18.97 ± 1b	13.66 ± 0.5d	5.52 ± 0.2b	3.97 ± 0.2g
	100	21.35 ± 0.7a	15.57 ± 0.9c	6.61 ± 0.2a	4.23 ± 0.07f
	0	12.50 ± 0.1ef	9.57 ± 0.3j	3.90 ± 0.1gh	3.13 ± 0.05kl
25	50	16.16 ± 0.4c	11.73 ± 0.4fg	4.52 ± 0.1de	3.44 ± 0.03ij
	100	18.87 ± 0.2b	13.89 ± 0.5d	5.09 ± 0.08c	3.77 ± 0.04gh
	0	10.47 ± 0.4h-j	7.67 ± 0.3lm	3.25 ± 0.1jk	2.58 ± 0.06n-p
50	50	13.06 ± 0.2de	9.77 ± 0.1ij	3.84 ± 0.1gh	2.90 ± 0.07lm
	100	15.65 ± 0.4c	11.83 ± 0.4fg	4.35 ± 0.08ef	3.23 ± 0.05jk
	0	8.44 ± 0.5kl	6.41 ± 0.4n	2.78 ± 0.07m-o	2.18 ± 0.06qr
75	50	10.97 ± 0.3gh	8.08 ± 0.3l	3.30 ± 0.08jk	2.56 ± 0.08op
	100	14.14 ± 0.3d	9.72 ± 0.2j	3.68 ± 0.07hi	2.82 ± 0.05mn
	0	6.94 ± 0.4mn	5.23 ± 0.2o	2.25 ± 0.1qr	1.74 ± 0.07s
100	50	9.38 ± 0.3jk	6.24 ± 1.3no	2.79 ± 0.07m-o	2.03 ± 0.05r
100	100	11.93 ± 0.8fg	10.85 ± 0.8g-i	3.25 ± 0.01jk	2.38 ± 0.06pq
S. O. V
Drought (D)		**	**	**	**
Treatment (T)		**	**	**	**
D × T		*	*	*	*
Genotype (G)		**	**	**	**
D × G		**	**	**	**
T × G		*	*	**	**
D × T × G		*	*	**	**
CV		5.67	5.67	4.34	4.34

Different letters indicate significant differences in each trait according to LSD test at P < 0.05. ns, * and ** indicate no significant difference, significant at 5% probability level and significant at 1% probability level, respectively. S. O. V. and CV refers to source of variation and coefficient variation, respectively