chapter  XI
16 Pages

SENSITIVENESS TO VIT ATION, AND ITS TRANSMITTED EFFECTS

LOCALIZED

General considerations - Vicia faba, effects of amputating the tips of the radicles - Regeneration of the tips - Effects of a short exposure of the tips to geotropic action and their subsequent amputation - Effects of amputating the tips obliquely - Effects of cauterizing the tips - Effects of grease on the tips - Pisum sativum, tips of radicles cauterized transversely, and on their upper and lower sides - Phaseolus, cauterization and grease on the tips - Gossypium - Cucurbita, tips cauterized transversely, and on their upper and lower sides - Zea, tips cauterized - Concluding remarks and summary of chapter - Advantages of the sensibility to geotropism being localized in the tips of the radicles.