. 2019 Feb 12;25(3):727–740. doi: 10.1007/s12298-019-00646-8

Table 1.

Shoot length and fresh weight of thirteen rice varieties after exposure to various doses of UV-B (7, 14, 21 and 28 kJ m⁻²d⁻¹)

UV-B (kJ m⁻²d⁻¹)	Aathira	Mangalamahsuri	Kanchana	Jyothi	Annapoorna	Mattatriveni	Karuna
Shoot length/plant (cm)
Control	20.53 ± 0.81^ab	22.10 ± 0.30^b	20.40 ± 0.30^a	19.20 ± 0.70^a	17.28 ± 0.28^ab	23.80 ± 0.20^a	21.97 ± 0.58^a
7	21.47 ± 0.81^a	23.07 ± 0.51^a	20.83 ± 0.15^a	19.22 ± 0.92^a	18.24 ± 0.86^a	23.20 ± 0.79^ab	21.00 ± 1.13^a
14	20.60 ± 0.46^ab	21.10 ± 0.53^c	19.20 ± 0.35^b	18.20 ± 0.78^b	16.70 ± 0.67^bc	22.84 ± 0.80^b	18.66 ± 0.60^b
21	19.93 ± 0.32^b	20.20 ± 0.72^d	19.00 ± 0.20^bc	18.00 ± 0.50^b	15.62 ± 0.54^d	20.50 ± 0.67^b	20.47 ± 0.92^a
28	19.53 ± 0.50^b	20.10 ± 0.26^d	18.60 ± 0.46^c	17.7 ± 0.32^b	15.76 ± 0.01^cd	20.13 ± 0.23^c	17.67 ± 0.70^b
Fresh weight/plant (g)
Control	0.121 ± 0.01^a	0.153 ± 0.00^a	0.122 ± 0.01^a	0.159 ± 0.01^a	0.096 ± 0.01^a	0.122 ± 0.01^a	0.141 ± 0.01^a
7	0.114 ± 0.01^ab	0.143 ± 0.00^b	0.11 ± 0.01^ab	0.15 ± 0.00^b	0.094 ± 0.00^a	0.114 ± 0.00^ab	0.142 ± 0.01^a
14	0.112 ± 0.00^ab	0.142 ± 0.00^b	0.116 ± 0.01^ab	0.142 ± 0.00^c	0.085 ± 0.00^b	0.102 ± 0.00^bc	0.121 ± 0.01^b
21	0.108 ± 0.01^b	0.135 ± 0.01^c	0.102 ± 0.01^c	0.136 ± 0.00^c	0.079 ± 0.00^b	0.088 ± 0.01^cd	0.099 ± 0.01^c
28	0.107 ± 0.00^b	0.124 ± 0.00^d	0.109 ± 0.01^bc	0.129 ± 0.00^d	0.083 ± 0.00^b	0.075 ± 0.01^d	0.064 ± 0.01^d

UV-B (kJ m⁻²d⁻¹)	Harsha	Varsha	Neeraja	Swetha	Aiswarya	Swarnaprabha
Shoot length/plant (cm)
Control	24.03 ± 0.45^a	17.30 ± 0.26^a	23.67 ± 0.83^a	24.50 ± 0.81^a	23.10 ± 0.75^a	24.50 ± 0.70^a
7	22.87 ± 0.12^b	16.23 ± 0.40^b	21.77 ± 0.32^b	22.40 ± 0.29^b	19.87 ± 0.75^b	20.60 ± 0.58^b
14	23.13 ± 0.61^b	15.03 ± 0.55^c	19.77 ± 0.25^c	17.80 ± 0.72^c	17.17 ± 0.21^c	19.20 ± 0.58^c
21	21.00 ± 0.53^c	13.73 ± 0.95^d	13.47 ± 0.45^d	13.70 ± 0.45^d	11.87 ± 0.61^e	12.20 ± 0.29^e
28	20.57 ± 0.38^c	12.87 ± 0.50^d	14.80 ± 0.70^e	16.80 ± 0.70^c	13.47 ± 0.50^d	13.90 ± 0.38^d
Fresh weight/plant (g)
Control	0.177 ± 0.01^a	0.141 ± 0.010^a	0.088 ± 0.01^a	0.164 ± 0.00^a	0.125 ± 0.01^a	0.148 ± 0.00^a
7	0.163 ± 0.01^b	0.123 ± 0.00^b	0.072 ± 0.00^b	0.139 ± 0.01^b	0.107 ± 0.00^b	0.121 ± 0.01^a
14	0.133 ± 0.00^c	0.106 ± 0.00^c	0.045 ± 0.00^c	0.077 ± 0.00^c	0.085 ± 0.01^c	0.066 ± 0.05^b
21	0.116 ± 0.01^d	0.09 ± 0.01^d	0.034 ± 0.00^d	0.043 ± 0.01^e	0.032 ± 0.01^e	0.051 ± 0.01^b
28	0.097 ± 0.00^e	0.083 ± 0.00^e	0.033 ± 0.00^d	0.054 ± 0.00^d	0.047 ± 0.01^d	0.066 ± 0.01^b

The data represent mean ± standard error (SE) and the values is an average of recordings from three independent experiments, each with three replicates (i.e. n = 9). Different alphabetical letters indicate statistically significant differences at p ≤ 0.05. Values followed by the same letter in a column indicate no significant difference between treatments following Tukey’s studentized range (HSD) test