Table 1.

Effect of UV radiation on chlorophylls and carotenoid of four studied plant species (mg g⁻¹ f w).

Plant species	UVR	Chloro. a	Chloro. b	Chloro. T	Carotenoid
Malva parviflora	Control	2.238 ± 0.00057	0.539 ± 0.311	2.954 ± 0.004	0.217 ± 0.0062
	UV-254	0.463 ± 0.0005 (1.775)∗	0.307 ± 0.0005 (0.232)	0.774 ± 0.0045 (2.18)∗	0.415 ± 0.0051 (0.198)∗
	UV-302	0.208 ± 0.00057 (2.029)∗	0.141 ± 0.001 (0.398)∗	0.352 ± 0.0028 (2.603)∗	0.172 ± 0.0025 (0.044)∗
	UV-365	0.238 ± 0.0005 (1.99)∗	0.153 ± 0.0005 (0.386)∗	0.392 ± 0.0025 (2.562)∗	0.192 ± 0.0025 (0.024)∗
Plantago major	Control	0.652 ± 0.0025	0.325 ± 0.005	0.976 ± 0.0052	0.133 ± 0.231
	UV-254	0.274 ± 0.0045 (0.378)∗	0.149 ± 0.001 (0.175)∗	0.142 ± 0.247 (0.833)∗	0.069 ± 0.120 (0.064)∗
	UV-302	0.212 ± 0.0025 (0.440)∗	0.121 ± 0.001 (0.204)∗	0.1108 ± 0.191 (0.865)∗	0.059 ± 0.102 (0.074)∗
	UV- 365	0.0036 ± 0.00015 (0.649)∗	0.0038 ± 0.0001 (0.321)∗	0.0074 ± 0.0001 (0.968)∗	0.112 ± 0.194 (0.021)∗
Rumex vesicarius	Control	0.210 ± 0.0005	0.034 ± 0.0005	0.246 ± 0.0005	0.105 ± 0.0005
	UV-254	0.072 ± 0.00005 (0.138)∗	0.055 ± 0.0002 (0.0204)∗	0.126 ± 0.00011 (0.119)∗	0.158 ± 0.0103 (0.0523)∗
	UV-302	0.071 ± 0.00005 (0.138)∗	0.053 ± 0.00005 (0.0185)∗	0.124 ± 0.00004 (0.121)∗	0.128 ± 0.0011 (0.0229)∗
	UV-365	0.104 ± 0.0005 (0.106)∗	0.056 ± 0.0005 (0.022)∗	0.162 ± 0.0001 (0.083)∗	0.041 ± 0.0002 (0.064)∗
Sisymbrium erysimoides	Control	0.753 ± 0.0005	0.263 ± 0.0005	1.018 ± 0.0023	0.187 ± 0.0026
	UV-254	0.284 ± 0.0046 (0.468)∗	0.079 ± 0.001 (0.184)∗	0.294 ± 0.005 (0.724)∗	0.443 ± 0.0015 (0.256)∗
	UV-302	0.410 ± 0.0005 (0.342)∗	0.206 ± 0.0032 (0.057)∗	0.617 ± 0.0023 (0.401)∗	0.275 ± 0.058 (0.088)∗
	UV-365	0.208 ± 0.0017 (0.545)∗	0.079 ± 0.001 (0.184)∗	0.288 ± 0.0104 (0.730)	0.233 ± 0.0005 (0.046)∗

1 - 2.238 ± 0.00057, The mean values of three replications in duplicated ± SD.

2 - (0.545)∗, The significantly different at P < 0.05.