Effects of Winter Foliar Fertilizing and Plant Growth Promoters on Element and Carbohydrate Contents on the Shoot of Navel Orange Sapling

Figures & data

Table 1. PRO-SOL foliar fertilizer components (PRO-SOL Company, USA).

Macroelements	Percentage
Total nitrogen	20
Nitrogen (ammonia)	3.9
Nitrogen (nitrate)	5.8
Nitrogen (urea)	10.3
Ammonium phosphate(P2O5)	20
Potassium nitrate (K2O3)	20
Microelements	ppm
Sodium borate (B)	200
Cu (EDTA)	500
Fe (EDTA)	1000
Mn (EDTA)	500
Zn (EDTA)	500
Sodium molybdate (Mo)	5

Table 2. Combined analysis of variance (ANOVA) for treatments for percentage of nitrogen, phosphorus, potassium, ferric and carbohydrate contents of shoots of naval orange sapling.

		Mean squares
Source of variation	df	Nitrogen content (%)	Phosphorus content (%)	Potassium content (%)	Ferric content (%)	Carbohydrate content (%)
Foliar fertilizing dates (S)	1	0.105a	0.003	0.010	0.001	0.074
Plant growth promoters (T)	6	0.092a	0.002	0.056*	0.604	0.062
S*T	6	0.210a	0.002	0.023a	0.188a	0.073
Error	39	0.011	0.002	0.009	0.123	0.080

^a* indicate significance at p ≤ 0.01 or p ≤ 0.05, respectively; df indicates degree of freedom.

Table 3. Effect of foliar application dates (S) of PRO-SOL fertilizer on the percentage of nitrogen, phosphorus, potassium, ferric, and carbohydrate contents of shoots of naval orange sapling.

Foliar fertilizing dates (S)	Nitrogen content (%)	Phosphorus content (%)	Potassium content (%)	Ferric content (%)	Carbohydrate content
Winter–spring (S1)	1.211a	0.241a	1.516a	5.37a	0.239
Spring (S2)	1.125b	0.256a	1.543a	5.37a	0.311
LSD	0.0574	0.0271	0.0516	0.1898	0.1525
Significance	**	ns	ns	ns	ns

In the column, means followed by equal letters are not significantly different (ns) for p ≤ 0.05 (LSD); *p ≤ 0.05; **p ≤ 0.01.

Table 4. Effect of foliar application of plant growth promoters (T) on the percentage of nitrogen, phosphorus, potassium, and ferric contents of shoots of naval orange sapling.

Plant growth promoters (T)	Nitrogen content (%)	Phosphorus content (%)	Potassium content (%)	Ferric content (%)	Carbohydrate content
T1	1.11625b	0.258a	1.650a	5.46abc	0.218a
T2	1.17b	0.225a	1.448b	5.08d	0.240a
T3	1.196b	0.268a	1.594a	5.36bcd	0.248a
T4	0.995c	0.240a	1.603a	5.02d	0.473a
T5	1.159b	0.258a	1.478b	5.69ab	0.240a
T6	1.182b	0.243a	1.494b	5.27cd	0.249a
T7	1.356a	0.250a	1.443b	5.72a	0.258a
LSD	0.1073	0.0507	0.0966	0.355	0.2853
Significance	**	ns	*	ns	ns

In the column, means followed by equal letters are not significantly different (ns) for P≤0.05 (LSD); *P ≤ 0.05; **P ≤ 0.01. where treatments assigned as T1: Control, T2: IBA at 40 ppm, T3: IBA at 80 ppm, T4: CPPU at 15 ppm, T5: CPPU at 30 ppm, T6: IBA at 40 ppm+ CPPU at 15 ppm, T7: IBA at 80 ppm+ CPPU at 30 ppm.

Table 5. Effect of interaction between dates (S) of foliar application and plant growth promoters (T) on the percentage of nitrogen, phosphorus, potassium, and ferric contents of shoots of naval orange sapling.

Foliar fertilizing dates (S)	Plant growth promoters (T)	Nitrogen content (%)	Phosphorus content (%)	Potassium content (%)	Ferric content (%)	Carbohydrate content (%)
	T1	1.078bc	0.265a	1.578bcd	5.620ab	0.208b
	T2	1.135b	0.225a	1.410e	5.030cd	0.260ab
	T3	1.215b	0.258a	1.595abc	5.284bcd	0.263ab
Winter – spring(S1)	T4	0.918d	0.253a	1.690ab	4.805d	0.223abcd
	T5	1.205b	0.255a	1.418e	5.795a	0.215cb
	T6	1.173b	0.218a	1.473cde	5.468abc	0.248abcd
	T7	1.755a	0.218a	1.450de	5.613ab	0.255abc
	T1	1.155b	0.250a	1.723a	5.293bcd	0.228abcd
	T2	1.205b	0.225a	1.485cde	5.123bcd	0.220bcd
	T3	1.178b	0.278a	1.593abc	5.433abc	0.233abcd
Spring(S2)	T4	1.073bc	0.228a	1.515cde	5.228bcd	0. 0.223abcd
	T5	1.113b	0.260a	1.538cde	5.580ab	0.265a
	T6	1.193b	0.268a	1.515cde	5.073cd	0.250abcd
	T7	0.958cd	0.283a	1.435e	5.830a	0.260ab
LSD		0.1518	0.0717	0.1366	0.502	0.4035
Significant		**	ns	**	**	ns

In the column, means followed by equal letters are not significantly different (ns) for P ≤ 0.05 (LSD); *P ≤ 0.05; **P ≤ 0.01. where treatments assigned as T1: Control, T2: IBA at 40 ppm, T3: IBA at 80 ppm, T4: CPPU at 15 ppm, T5: CPPU at 30 ppm, T6: IBA at 40 ppm+ CPPU at 15 ppm, T7: IBA at 80 ppm+ CPPU at 30 ppm