B. Vegetative OrgansâLeaf and Stem 291 ... B. Eï¬'ccts on Leaf Tissues 293. C. Effects on ...... in jack pine (Malhotra & Sarkar, 1979) and red kidney bean (Koziol & ..... L. H. Weinstein, J. A. hurence, R. F. Sacher, A. I. Dickie & L. M. Johnson.