Table 1.

Diurnal variations in Epimedium brevicornu leaves photosynthesis.

Repeat	Time	Photo	PARi	Tleaf	CO2S	Trmmol	Cond	Ci
1	7:12	0.0780	108.5	28.68	433.0	0.0433	0.000578	372.1
	8:01	0.0931	176.8	31.67	433.0	0.0435	0.000153	371.0
	9:01	0.1888	628.7	33.24	433.1	0.0433	0.000578	201.7
	10:13	0.1070	1460.9	33.53	434.1	0.1344	0.001138	221.6
	11:04	0.0615	1578.3	35.16	427.0	0.1593	0.000865	218.2
	12:00	0.0377	1667.6	36.44	425.4	0.2048	0.001061	262.4
	13:15	0.0053	1598.9	37.25	421.2	0.2590	0.001659	323.1
	14:04	0.0276	1554.4	37.27	416.9	0.1860	0.001404	308.5
	15:00	0.0140	1446.8	36.39	415.3	0.0977	0.000652	295.7
	16:00	0.0752	1163.1	35.08	413.2	0.0487	0.000439	94.0
	17:00	0.1485	934.4	34.01	411.8	0.0586	0.000708	45.7
	18:00	0.1017	544.7	33.16	412.4	0.0353	0.000545	88.2
	19:00	0.0678	58.3	32.28	415.0	0.0367	0.000734	241.0
2	7:12	0.0813	100.6	28.64	433.1	0.0415	0.000558	386.0
	8:01	0.1014	180.7	31.65	433.0	0.0492	0.000223	373.3
	9:01	0.2082	589.5	33.26	433.0	0.0469	0.000596	171.4
	10:13	0.1086	1432.3	33.47	435.1	0.1358	0.000909	171.4
	11:04	0.0642	1578.4	35.17	427.0	0.1590	0.000864	213.7
	12:00	0.0400	1668.4	36.45	425.5	0.2057	0.001063	259.1
	13:15	0.0089	1555.1	37.23	421.0	0.2527	0.002035	338.5
	14:04	0.0376	1554.3	37.27	416.9	0.1857	0.001434	300.6
	15:00	0.0185	1349.0	36.51	414.5	0.0965	0.000773	304.4
	16:00	0.0779	1153.2	35.08	413.1	0.0512	0.000456	94.5
	17:00	0.1552	933.5	34.01	411.8	0.0599	0.000735	44.2
	18:00	0.1037	543.9	33.15	412.4	0.0356	0.000549	84.3
	19:00	0.0691	58.4	32.27	415.0	0.0363	0.000728	236.8
3	7:12	0.0855	105.5	28.56	433.3	0.0363	0.000532	386.1
	8:01	0.1086	178.8	31.65	433.0	0.0363	0.000202	371.2
	9:01	0.2234	591.9	33.26	433.0	0.0437	0.000556	220.4
	10:13	0.1122	1460.8	33.53	434.0	0.1333	0.001142	216.0
	11:04	0.0689	1634.3	35.59	425.6	0.1294	0.000783	201.7
	12:00	0.0488	1667.9	36.44	425.4	0.2057	0.001064	247.9
	13:15	0.0093	1598.9	37.25	421.2	0.2595	0.00165	319.0
	14:04	0.0432	1530.9	37.07	417.4	0.2176	0.001347	276.4
	15:00	0.0228	1397.9	36.32	414.8	0.0999	0.000889	308.7
	16:00	0.0859	1147.0	35.09	413.2	0.0517	0.000458	69.4
	17:00	0.1679	934.3	34.01	411.8	0.0584	0.000711	6.2
	18:00	0.1051	571.0	33.71	412.5	0.0390	0.000498	46.1
	19:00	0.0706	58.4	32.26	415.0	0.0368	0.000738	236.0

Photo, photosynthetic rate, unit: µmol CO₂ m⁻² s⁻¹. PARi, in-chamber quantum sensor, unit: µmol m⁻² s⁻¹. Tleaf, temperature of leaf thermocouple, unit: °C. CO₂S, sample cell CO₂, unit: µmol mol⁻¹. Trmmol, transpiration rate, unit: mmol H₂O m⁻² s⁻¹. Cond, conductance to H₂O, unit: mol H₂O m⁻² s⁻¹. Ci, intercellular CO₂ concentration, unit: μmol CO₂ mol⁻¹.