Nobel P. S., De la Barrera E., Tolerances and acclimation to low and high temperatures for cladodes, fruits and roots of a widely cultivated cactus, Opuntia ficus-indica, New Phytologist, 2003, 157(2):271-279, doi: 10.1046/j.1469-8137.2003.00675.x
The experiment compares cladodes of different ages, fruits and young roots of an Opuntia ficus-indica clone. It presents LT₅₀ values and differences in acclimation capacity between organs.