Fig. 7

Prediction of maize drought tolerance by candidate genes and i-traits. a Drought tolerance selection accuracies by different amounts of candidate and random genes with RR-BLUP and Bayes A models (see “Materials and methods”). The significances were determined by t test: ***, P < 0.001. b Survival rate predicted by combining 15 i-traits across the 4 time points. c–f Prediction of four known spectral indexes: red valley reflectance (c), green peak reflectance (d), green peak area (e), and red edge area (f), respectively