Fig. 1From: MicroRNA transcriptomic analysis of the sixth leaf of maize (Zea mays L.) revealed a regulatory mechanism of jointing stage heterosisCharacteristics of the leaf area, net photosynthesis rate of the sixth leaf at the V6 stage and grain yield of hybrid combinations and inbred lines. The lowercase letters indicate significant differences at P < 0.05 (least significant difference)Back to article page