Table 2.

Effects of different night temperature on seed size of soybean.

Year	Cultivars	Treatment(°C)	Seed length (mm)	Seed width (mm)	Seed diameter (mm)	Ratio of seed length to width
2020	Z1307	18	7.57±0.07aA	6.23±0.03aA	6.73±0.07aA	1.21±0.02aA
		28	6.60±0.00bB	5.63±0.07bB	6.07±0.03bB	1.17±0.01aA
	ZH39	18	7.83±0.03aA	6.50±0.06aA	6.93±0.18aA	1.21±0.01aA
		28	7.33±0.09bB	6.27±0.07aA	6.53±0.03aA	1.17±0.02aA
	ZH76	18	7.70±0.06aA	5.97±0.12aA	6.67±0.03aA	1.29±0.02aA
		28	6.83±0.07bB	5.58±0.02bA	6.37±0.09bA	1.22±0.01aA
2021	Z1307	18	7.23±0.13aA	6.40±0.09aA	6.73±0.02aA	1.13±0.03bA
		28	6.55±0.12bA	5.10±0.06bB	5.71±0.22bA	1.28±0.03aA
	ZH39	18	7.96±0.05aA	6.51±0.15aA	7.01±0.10aA	1.22±0.02aA
		28	7.57±0.07bB	5.95±0.08bA	6.70±0.02bA	1.27±0.02aA
	ZH76	18	8.27±0.10aA	5.56±0.08aA	6.89±0.06aA	1.49±0.04aA
		28	6.95±0.17bB	4.96±0.22aA	6.05±0.15bB	1.41±0.06aA
F-value
Year(Y)			4.48*	23.29**	NS	26.17**
Cultivar(C)			60.77**	61.33**	21.78**	33.15**
Treatment(T)			229.04**	109.99**	94.67**	NS
Y*C			9.46**	3.87*	NS	9.52**
Y*T			NS	12.49**	4.82*	6.80*
C*T			13.02**	8.62**	5.46*	5.04*
Y*C*T			4.56*	NS	NS	NS

*, ** represent the test significant at the 5% level (P < 0.05) and 1% level (P < 0.01), respectively; NS, non-significant at the 5% level.