Fig. 2.

Contrasting phenotypic differences in response to nitrogen conditions between Zheng58 and Chang7-2. The phenotypic values represent mean ± SD (n = 7). NN and LN are indicated by light grey and dark grey, respectively. Red asterisks indicate a significant phenotypic difference between NN and LN (Student’s t test; *P < 0.05). Z58: Zheng58; C7-2: Chang7-2. PH plant height, EH ear height, LL leaf length, LW leaf width, TL tassel length, TBN, tassel branch number, DTA days to anthesis, DTS days to silking, CL cob length, ED ear diameter, KRN, kernel row number, CD cob diameter, CW cob weight, KW total kernel weight, HKW hundred kernel weight