@ARTICLE {DE JONG:1991, title = {Foliage heat tolerance of potatoes based on visual scores and membrane leakage}, author = {de Jong, J. P. and Ekanayake, I. J. }, journal = {Plant Physiology (Suppl.)}, year = {1999}, volume = {96}, number = {1}, pages = {170}, note = {RTB; Root and Tuber}, }