Résultat
Copper (Cu) deficiency
Grey speck
Molybdenum (Mo) deficiency
Mineral toxicity
Aluminum (Al) toxicity
Ammonium (NH4) toxicity
Calcium (Ca) toxicity
Iron (Fe) toxicity
Sodium (Na) toxicity
Wind-blown sand abrasion
Allelopathy
Weeding injury
Staking injury
Lightning
Fluor (F) toxicity
Snow