Plant Nutrition

Step 1: Understanding the symptoms.
Abscission refers to the premature shedding of flowers, fruits, and leaves, often due to mineral deficiencies such as a lack of potassium. Chlorosis, on the other hand, is a condition where leaves turn yellow due to a lack of essential minerals, like nitrogen or magnesium.
Step 2: Conclusion.
The mineral deficiencies related to the symptoms are potassium for abscission and nitrogen or magnesium for chlorosis.