Fig. 1

The morphological difference in leaf, pod and kernel of two cultivars under different calcium treatments. A the leaf morphology in “XH2008”; B the half-plant morphology in “XH2008”; C the pod morphology in “XH2008”; D the kernel morphology in “XH2008”. E the leaf morphology in “Lanshan”; F the half-plant morphology in “Lanshan”; G the pod morphology in “Lanshan”; H the kernel morphology in “Lanshan”; I The comparison between “Lanshan “ and “XH2008” in terms of full pod rate; J The comparison between “Lanshan “ and “XH2008” in terms of full pod weight; K The comparison between “Lanshan “ and “XH2008” in terms of yield per plant; L The comparison between “Lanshan “ and “XH2008” in terms of main stem height; M The comparison between “Lanshan “ and “XH2008” in terms of lateral branch number; N The correlation analyses among yield components and aboveground morphological characters in peanut. Note: In each sub-figure of A-H, the left corresponds to calcium deficiency and the right one corresponds to the controls; “*” represents P < 0.05, “**” represents P < 0.01, “***” represents P < 0.001, “****” represents P < 0.0001