Table 3.

Targeted metabolites amino acid and catechins (mg·g-1) in young shoots of tea plants supplied with two P levels in nutrient solutions.

Metabolites	Fengqing		Longjing-43
	−P	+P	−P	+P
Amino acids
Asp	2.06 ± 0.16b	3.13 ± 0.05a	1.36 ± 0.05b	2.47 ± 0.22a
Gly	0.29 ± 0.01b	1.55 ± 0.14a	0.11 ± 0.01b	0.47 ± 0.04a
Leu	0.28 ± 0.01b	0.45 ± 0.04a	0.11 ± 0.01b	0.20 ± 0.01a
Pro	3.56 ± 0.13a	1.95 ± 0.04b	1.66 ± 0.13a	0.84 ± 0.01b
Ile	1.21 ± 0.05a	0.86 ± 0.08b	0.43 ± 0.02a	0.22 ± 0.02b
Glu	9.64 ± 0.77a	7.78 ± 0.13b	2.36 ± 0.19b	3.41 ± 0.06a
Val	0.42 ± 0.01a	0.55 ± 0.05b	0.46 ± 0.02b	0.62 ± 0.06a
Met	2.52 ± 0.10a	1.97 ± 0.78b	1.08 ± 0.04b	1.44 ± 0.3a
Phe	1.19 ± 0.05a	0.93 ± 0.01b	0.52 ± 0.02b	1.18 ± 0.2a
Thea	8.52 ± 0.68b	20.81 ± 0.36a	22.78 ± 1.83a	17.02 ± 0.29b
Ser	0.16 ± 0.02b	0.31 ± 0.03a	0.20 ± 0.02a	0.12 ± 0b
Thr	0.24 ± 0.01b	0.38 ± 0.34a	0.78 ± 0.03a	0.55 ± 0.05b
Arg	1.18 ± 0.05a	0.78 ± 0.01b	0.41 ± 0.35 NS	0.24 ± 0.25
Tyr	0.21 ± 0.15 NS	0.43 ± 0.01	0.45 ± 0.05a	0.24 ± 0.03b
His	0.59 ± 0.17 NS	0.52 ± 0.13	0.55 ± 0.14 NS	0.53 ± 0.18
Ala	0.11 ± 0.02 NS	0.08 ± 0.01	0.08 ± 0.04 NS	0.11 ± 0.03
Cys	0.40 ± 0.25 NS	0.49 ± 0.36	0.29 ± 0.08 NS	0.56 ± 0.37
Lys	0.81 ± 0.49 NS	1.72 ± 1.02	0.61 ± 0.39 NS	1.17 ± 0.51
Catechins
EGCG	34.03 ± 1.36a	25.77 ± 2.34b	33.25 ± 6.5 NS	36.44 ± 0.4
EGC	6.92 ± 0.56a	4.25 ± 0.07b	3.02 ± 0.24b	10.93 ± 0.19a
ECG	2.71 ± 0.22a	2.24 ± 0.04b	2.80 ± 0.22b	3.40 ± 0.06a
GC	0.14 ± 0.05a	0.03 ± 0.02b	0.05 ± 0 NS	0.07 ± 0.03
CG	0.03 ± 0b	0.05 ± 0.01a	0.06 ± 0.01a	0.02 ± 0b
C	1.06 ± 0.04a	0.66 ± 0.06b	1.37 ± 0.04a	0.96 ± 0.19b
GCG	0.19 ± 0.04 NS	0.20 ± 0.02	0.23 ± 0.01 NS	0.16 ± 0.03

Means with different letter and NS indicates significant or not significant ($p<$ 0.05) differences between P treatments.