. 2010 Sep 29;106(5):675–686. doi: 10.1093/aob/mcq169

Table 1.

Maximal quantum yield of PSII electron transport (F_v/F_m; mean ± s.d.) in leaves of two maize inbred lines treated with low temperature (14 °C) for different time periods

	KW 1074	CM 109
Growth at 24 °C	0·748 ± 0·021^a	0·756 ± 0·011^a
Chilling for 4 h	0·729 ± 0·018^a	0·715 ± 0·010^b
Chilling for 28 h	0·697 ± 0·021^b	0·647 ± 0·032^c

Measurements were done at 24 °C. Data represent means for nine plants.

Significant differences (P < 0·05) within columns, estimated by analysis of variance, are indicated by different letters.