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  2. Calcium deficiency (plant disorder) - Wikipedia

    en.wikipedia.org/wiki/Calcium_deficiency_(plant...

    Calcium deficiency symptoms appear initially as localized tissue necrosis leading to stunted plant growth, necrotic leaf margins on young leaves or curling of the leaves, and eventual death of terminal buds and root tips. Generally, the new growth and rapidly growing tissues of the plant are affected first.

  3. Physiological plant disorder - Wikipedia

    en.wikipedia.org/wiki/Physiological_plant_disorder

    Diagnosis of the cause of a physiological disorder (or disease) can be difficult, but there are many web-based guides that may assist with this. Examples are: Abiotic plant disorders: Symptoms, signs and solutions; [1] Georgia Corn Diagnostic Guide; [2] Diagnosing Plant Problems (Kentucky); [3] and Diagnosing Plant Problems (Virginia). [4 ...

  4. Calcium deficiency - Wikipedia

    en.wikipedia.org/wiki/Calcium_deficiency

    Calcium deficiency may refer to: Calcium deficiency, a plant disorder that can be caused by insufficient calcium in the growing medium, but is more frequently a product of low transpiration of the whole plant or more commonly the affected tissue; Hypocalcaemia, the presence of low serum calcium levels in the blood

  5. Bitter pit - Wikipedia

    en.wikipedia.org/wiki/Bitter_pit

    Bitter pit is a disorder in apple fruits, now believed to be induced by calcium deficiency. It occurs less commonly in pears. The disease was probably first reported in Germany where it was known as Stippen. [1] It was also known as "Baldwin spot" and "blotchy cork" in North America. The name "bitter pit" was first used by Cobb in Australia in ...

  6. Leaf scorch - Wikipedia

    en.wikipedia.org/wiki/Leaf_scorch

    Leaf scorch (also called leaf burn, leaf wilt, and sun scorch) is a browning of plant tissues, including leaf margins and tips, and yellowing or darkening of veins which may lead to eventual wilting and abscission of the leaf.

  7. List of apple diseases - Wikipedia

    en.wikipedia.org/wiki/List_of_apple_diseases

    Localized calcium deficiency Blossom blast Boron deficiency Burrknot: Genetically predisposed rootstock Fruit cracking Genetic Fruit russet Frost, sprays, etc. Green mottle Unidentified Hollow apple High temperature Internal bark necrosis = measles Low pH and mineral nutrient imbalance Internal browning Boron and calcium deficiencies, etc.

  8. List of pear diseases - Wikipedia

    en.wikipedia.org/wiki/List_of_pear_diseases

    Miscellaneous diseases and disorders; Alfalfa greening (green stain) Unknown Bitter pit Localized calcium deficiency Black end Water imbalance Black speck (skin speckling) Associated with low oxygen in storage Blossom blast Boron deficiency Brown core High CO 2: Core breakdown (Bartlett) Senescence Cork spot Associated with calcium deficiency

  9. Manganese deficiency (plant) - Wikipedia

    en.wikipedia.org/wiki/Manganese_deficiency_(plant)

    Effects of manganese deficiency on a rose plant. Manganese deficiency can be easy to spot in plants because, much like Magnesium deficiency (agriculture), the leaves start to turn yellow and undergo interveinal chlorosis. The difference between these two is that the younger leaves near the top of the plant show symptoms first because manganese ...