. 2017 Feb 6;8:69. doi: 10.3389/fpls.2017.00069

Table 2.

Yield and related characteristics of three maize hybrids as influenced by different drought stress levels.

Maize cultivars	Treatments	Ears/plant	Kernel rows/ear	Kernels/ear	100-kernel weight (g)	Grain yield/plant (g)	Biological yield/plant (g)
Dong Dan 80	Ck	1.22 ± 0.02^a	14.78 ± 0.24^a	472.35 ± 3.43^a	23.98 ± 0.22^a	138.56 ± 0.89^a	331.77 ± 3.34^a
	LD	1.20 ± 0.06^a	14.68 ± 0.19^a	469.46 ± 5.76^a	23.09 ± 0.65^ab	129.21 ± 1.67^b	329.78 ± 4.23^a
	MRD	1.19 ± 0.09^a	14.04 ± 0.38^b	466.13 ± 4.34^a	22.78 ± 0.22^b	126.45 ± 1.67^b	319.78 ± 3.76^b
	SD	1.15 ± 0.06^a	13.65 ± 0.41^b	459.26 ± 2.87^b	21.56 ± 0.25^c	119.65 ± 0.98^c	310.56 ± 4.87^c
	Means	1.19	14.29	466.80	22.85	128.47.22	322.97
Wan Dan 13	Ck	1.21 ± 0.05^a	14.21 ± 0.31^a	474.10 ± 2.87^a	22.87 ± 0.35^a	134.67 ± 1.21^a	327.99 ± 2.65^a
	LD	1.19 ± 0.08^a	14.08 ± 0.23^a	465.90 ± 2.78^b	21.78 ± 0.34^b	126.76 ± 0.76^b	324.76 ± 2.86^a
	MRD	1.17 ± 0.05^a	13.67 ± 0.16^b	459.06 ± 4.76^b	20.67 ± 0.35^c	118.65 ± 1.21^c	315.67 ± 5.87^b
	SD	1.13 ± 0.08^a	12.32 ± 0.32^c	447.14 ± 6.09^c	19.65 ± 0.21^d	104.34 ± 1.55^d	303.89 ± 3.76^c
	Means	1.18	13.57	461.55	21.24	121.11	318.08
Run Nong 35	Ck	1.21 ± 0.03^a	14.08 ± 0.32^a	471.44 ± 2.87^a	23.07 ± 0.13^a	133.76 ± 1.34^a	328.67 ± 4.11^a
	LD	1.17 ± 0.05^ab	13.79 ± 0.21^a	456.33 ± 4.33^b	21.11 ± 0.21^b	116.11 ± 1.22^b	315.67 ± 3.76^b
	MRD	1.14 ± 0.04^ab	11.67 ± 0.26^b	423.47 ± 2.67^c	19.55 ± 0.18^c	93.65 ± 1.79^c	303.78 ± 6.12^c
	SD	1.10 ± 0.03^b	9.67 ± 0.21^c	380.12 ± 3.65^d	17.45 ± 0.22^d	76.12 ± 1.11^d	274.27 ± 4.21^d
	Means	1.16	12.30	432.84	20.30s	104.91	305.60

Values are means of three replicates ± SE. Values followed by the similar lower case letters within columns for a maize hybrid don’t differ significantly according to Newman–Keuls test (P < 0.05). Ck, control (100% FC); LD, low drought (80% FC); MRD, moderate drought (60% FC); and SD, severe drought (40% FC). FC, Field capacity.