Table 1 Descriptive statistics for germination-related traits at 25 and 10 °C.

Trait	N	Mean	Median	SD	Min	Max
R	100	0.70	0.80	0.28	0.04	1.00
GR	100	0.18	0.07	0.24	0.00	0.94
RGR	100	0.22	0.12	0.26	0.00	0.94
I	100	17.34	18.43	8.10	0.75	32.07
GI	100	2.24	0.45	3.71	0.00	18.47
RGI	100	0.10	0.03	0.15	0.00	0.84
T	100	6.18	5.97	1.64	3.19	9.89
DT	100	23.26	24.42	20.41	0.00	67.99
RDT	100	4.28	4.33	4.02	0.00	14.49

Descriptive statistical data includes sample size (N), mean, median, standard deviation (SD), minimum value (Min), and maximum value (Max). One hundred sweet corn inbred lines were used for germination experiments at room temperature (25 ℃) and low temperature (10 ℃). The experiment was repeated three times and the average value was taken. Directly observed traits included germination rate on the 7th day under room temperature (R), germination index on the 7th day under room temperature (I), average germination time on the 7th day under room temperature (T), germination rate on the 21st day under low temperature (GR), germination index on the 21st day under low temperature (GI), average germination time on the 21st day under low temperature (DT), relative germination rate (RGR), relative germination index (RGI), and average germination time (RDT).

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