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. 2019 Aug 20;14(8):e0221116. doi: 10.1371/journal.pone.0221116

Table 2. Quantum Yield of photosystem II (PSII), Electron Transport Rate (ETR) and Chlorophyll Content Index (CCI) of leaves depending on the variety and the use of the preparation.

Specification		Number of days
Specification		0 first measurement	2 spraying	5 stop watering	28 drought stress	48 regeneration
Quantum Yield of PSII
Variety	KWS 1325	0.6265 ^b	0.6757 ^a	0.6943 ^a	0.5830 ^b	0.6462 ^a
	Ambrosini	0.6559 ^a	0.6832 ^a	0.6851 ^a	0.6258 ^a	0.6508 ^a
p-value		0.0101^*	0.0749 ^ns	0.5828 ^ns	0.0067^**	0.8577 ^ns
Spraying	control	0.6410 ^a	0.6789 ^a	0.6831 ^a	0.5582 ^b	0.6161 ^b
	preparation	0.6414 ^a	0.6800 ^a	0.6962 ^a	0.6505 ^a	0.6809 ^a
p-value		0.9724 ^ns	0.0584 ^ns	0.4341 ^ns	0.0000^**	0.0156^*
Electron Transport Rate
Variety	KWS 1325	13.2 ^b	14.2 ^a	14.6 ^a	12.2 ^b	13.6 ^a
	Ambrosini	13.8 ^a	14.3 ^a	14.4 ^a	13.1 ^a	13.7 ^a
p-value		0,0109^*	0.4292 ^ns	0.5828 ^ns	0.0067^**	0.8577 ^ns
Spraying	control	13.5 ^a	14.3 ^a	14.3 ^a	11.7 ^b	12.9 ^b
	preparation	13.5 ^a	14.3 ^a	14.6 ^a	13.7 ^a	14.3 ^a
p-value		0.9724 ^ns	0.9035 ^ns	0.4341 ^ns	0.0000^**	0.0156^*
Chlorophyll Content Index
Variety	KWS 1325	14.91 ^a	13.59 ^a	15.14 ^a	15.44 ^b	19.32 ^b
	Ambrosini	16.05 ^a	15.25 ^a	17.10 ^a	18.75 ^a	24.52 ^a
p-value		0.1058^ns	0.0764^ns	0.1494^ns	0.0001^**	0.0001^**
Spraying	control	15.53 ^a	13.62 ^a	15.26 ^a	15.96 ^b	21.28 ^b
	preparation	15.43 ^a	15.22 ^a	16.97 ^a	18.24 ^a	22.57 ^a
p-value		0.8854^ns	0.0864^ns	0.2078^ns	0.0016^**	0.0400^*

* statistically significant differences (p < 0.05)

** highly statistically significant differences (p < 0.01)

^ns no statistically significant influence on tested trait (p > 0.05).

Mean values that do not differ significantly have the same letter

a; b–homogeneous groups (Tukey’s test).