condition mean min max Control 6.5300505555555555 4.90793 7.953306666666667 Nitrogen deficiency 9.085385555555556 6.840263333333334 10.61267 Phosphate deficiency 5.52446 4.07459 7.01429 Potassium deficiency 6.363032222222222 5.29126 8.36937 Heat 8.009305 7.3960799999999995 8.62253