... Processes 146 6.2.2 Growth 147 6.2.3 Fruit Yield and Quality 147 6.3 Diagnosis of Magnesium Status in Plants 148 6.3.1 Symptoms of Deficiency and Excess 148 6.3.1.1 Symptoms of Deficiency 148 6.3.1.2 ... magnesium-deficient leaves, however, usually results in the loss of plasticpigments from most plants (55). On an individual leaf, as well as on a whole plant basis, deficiency 148 Handbook of Plant Nutrition FIGURE ... tissues.152 Handbook of Plant Nutrition CRC_DK2972_Ch006.qxd 6 /14/ 2006 7:04 AM Page 152178 Handbook of Plant Nutrition 152. P.C.R. Fontes, M.A. Moreira, R.L.F. Fontes, A.A. Cardosa. Effects of zinc fungicides...