Enhancing growth, yield, essential oil content, and composition of holy basil (Ocimum tenuiflorum L.) using red algae-based bio-stimulant under acidic conditions of the Western Himalayas

Table 4 Effect of S. chordalis on essential oil content (%) and composition (area %) of O. tenuiflorum

Treatment		Oil Content (v/w%)	Camphene	Limonene	Eugenol	Methyl Cinnamate	β- elemene	Methyl Eugenol	α-Humulene	β—Selinene	β- Cadinene	Elemol
RI (exp.)			960	1038	1360	1362	1387	1470	1494	1509	1528	1559
RI (lit.)			946	1024	1345	1376	1391	1452	1484	1522	1546	1548
Sole Effect
Application method	Drenching	0.19^b	0.99^a	0.66^a	26.50	20.32	1.36^b	23.48^b	1.95	3.22^b	2.40^b	3.47^b
	Foliar	0.26^a	0.60^b	0.62^b	27.98	20.27	1.40^a	24.63^a	1.22	3.68^a	3.95^a	3.76^a
	SEm ±	0.015	0.006	0.005	1.37	0.181	0.005	0.24	0.452	0.049	0.025	0.021
	LSD (P = 0.05)	0.046	0.019	0.015	NS	NS	0.016	0.73	NS	0.148	0.076	0.063
Concentration	Control	0.07^c	0.63^d	0.43^d	18.50^b	13.30^d	1.70^a	22.53^c	1.28	1.43^d	5.24^a	1.03^e
	2.5 mL/L	0.18^b	0.70^c	0.83^a	24.56^b	18.40^c	1.44^c	22.55^c	0.97	2.05^c	3.37^b	2.98^d
	5.0 mL/L	0.23^b	0.75^b	0.58^b	24.88^b	22.18^b	1.48^b	23.01^bc	0.82	2.60^b	1.63^d	3.45^c
	7.5 mL/L	0.40^a	1.25^a	0.56^bc	48.08^a	25.76^a	0.85^d	27.36^a	2.98	9.35^a	2.21^c	6.20^a
	10.0 mL/L	0.24^b	0.69^c	0.83^a	20.18^b	21.80^b	1.44^c	24.81^b	1.89	1.81^C	3.54^b	4.43^b
	SEm ±	0.024	0.01	0.008	2.165	0.286	0.009	0.388	0.715	0.078	0.04	0.033
	LSD (P = 0.05)	0.073	0.03	0.024	6.484	0.856	0.026	1.162	NS	0.234	0.121	0.1
Interaction Effect
	LSD (P = 0.05)	NS	0.043	0.034	9.169	NS	0.036	NS	NS	NS	0.171	0.141

SEm ( ±)Standard Error of Mean, LSD Least Significant Difference, NS Non-significant, RI Retention Index. Means within each column with similar letter are not significantly different at the 5% probability level

ISSN: 1471-2229