What does 'senescence', 'necrosis', 'abscission', and 'chlorosis' mean?

Welcome to Hydroponics Daily with Dr. Russell Sharp! In this enlightening episode, we delve into the intricate world of plant health, focusing on four key terms crucial for diagnosing leaf issues in hydroponics: chlorosis, senescence, abscission, and necrosis. Understanding these terms is essential for identifying and addressing nutrient deficiencies and environmental stressors that affect plant vitality. Chlorosis, characterized by the yellowing of leaves, often signals a nutrient deficiency such as nitrogen or iron. Senescence, the browning and dying off of leaves, can be a natural process or a result of dry soil and high fertilizer conductivity. Abscission, where leaves drop off still green, often occurs due to oxygen deprivation in the roots. Lastly, necrosis, the blackening of leaf tissues, signals calcium deficiency, notably in crops like tomatoes and lettuce. Join Dr. Sharp as he clarifies these scientific terms, helping you better understand the complex interactions in your hydroponic system and improve your crop's health. Tune in and share this valuable knowledge with fellow hydroponics enthusiasts! https://eutrema.co.uk/