Table 3.

Effects of different elevated temperature treatments on the yield components of the genotypes in the field experiments in 2015.

Variety	Treatment	Spikelets per panicle	Panicles m−2	Spikelets m−2 (103)	Grain filling percentage (%)	Grain weight (mg)
HHZ	CK	182 ± 3.93a	259 ± 13.08a	47.0 ± 2.67a	87.6 ± 1.57a	20.2 ± 0.16a
	NW	176 ± 8.20ab	249 ± 7.02a	43.8 ± 2.55a	81.8 ± 1.53ab	19.3 ± 0.11b
	DW	187 ± 3.13a	243 ± 8.76a	45.3 ± 1.06a	83.7 ± 1.97ab	19.6 ± 0.13b
	AW	151 ± 13.77b	264 ± 3.25a	40.0 ± 3.93a	77.7 ± 4.53b	18.4 ± 0.21c
SY63	CK	179 ± 10.05a	211 ± 3.96a	37.7 ± 1.69a	90.5 ± 1.40a	27.4 ± 0.15a
	NW	187 ± 6.75a	218 ± 7.00a	40.7 ± 1.16a	90.8 ± 1.22a	26.5 ± 0.26ab
	DW	197 ± 7.53a	203 ± 1.82a	40.0 ± 1.56a	90.5 ± 1.31a	26.9 ± 0.13ab
	AW	184 ± 12.80a	218 ± 3.30a	40.1 ± 3.28a	82.2 ± 7.75a	25.9 ± 0.57b
YLY6	CK	197 ± 3.49a	226 ± 1.93a	44.6 ± 1.08a	87.4 ± 1.53a	28.4 ± 0.29a
	NW	192 ± 7.77a	216 ± 5.99a	41.5 ± 2.35ab	87.8 ± 1.77a	26.7 ± 0.34b
	DW	199 ± 4.09a	226 ± 7.58a	45.1 ± 2.19a	79.2 ± 2.26ab	26.5 ± 0.51b
	AW	177 ± 1.43b	226 ± 5.11a	40.0 ± 0.87b	76.4 ± 5.65b	26.3 ± 0.42b
LYPJ	CK	219 ± 7.32a	223 ± 3.77a	48.9 ± 2.35a	75.4 ± 2.73ab	24.8 ± 0.24a
	NW	203 ± 5.19a	236 ± 4.95a	47.8 ± 1.13a	82.3 ± 1.51a	24.1 ± 0.20ab
	DW	207 ± 7.02a	243 ± 4.95a	50.3 ± 1.13a	73.6 ± 4.34ab	24.0 ± 0.53ab
	AW	218 ± 8.26a	240 ± 12.76a	52.0 ± 1.31a	56.6 ± 13.26b	22.8 ± 0.37b

In the column for each variety, means followed by different letters are significantly different at the 0.05 probability level according to the least significant difference (LSD) test. Abbreviations: HHZ, Huanghuazhan; SY63, Shanyou63; YLY6, Yangliangyou6; LYPJ, Liangyoupeijiu. CK, ambient control; NW, night-time warming; DW, daytime warming; AW, and all-day warming treatments. Ten hills were used to measure the yield components in the maturity stage.