condition mean min max Sterile Frond 43.6141 40.3761 47.3199 Fertile Frond 41.1015 33.7155 47.2701 Young Stem with Root 32.3427 27.7655 37.2261 Mature Stem with Root 28.492 19.1273 38.4066 Root 22.503333333333334 17.676 28.1962