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Once boron has been absorbed by the plant and incorporated into the various structures that require boron, the plant is unable to disassemble these structures and re-transport boron through the plant resulting in boron being a non-mobile nutrient. Due to translocation difficulties the youngest leaves often show deficiency symptoms first. [5]
Symptoms will often appear overnight, affecting many types of plants. Leaves and stems may turn black, and buds and flowers may be discoloured, and frosted blooms may not produce fruit. Many annual plants, or plants grown in frost free areas, can suffer from damage when the air temperature drops below 40 degrees Fahrenheit (4 degrees Celsius).
Blackheart (plant disease) Boron deficiency (plant disorder) C. ... Manganese deficiency (plant) Micronutrient deficiency; Molybdenum deficiency (plant disorder) N.
The following is a list of diseases of pears (Pyrus communis). Bacterial diseases ... Boron deficiency Brown core High CO 2: Core breakdown (Bartlett) Senescence
This article is a list of diseases of beets (Beta vulgaris), a plant grown for its edible taproot and leaves. ... Boron deficiency Scab Streptomyces spp.
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.
Decomposition of organic material causes boron to be deposited in the topmost soil layer. When soil dries it can cause a precipitous drop in the availability of boron to plants as the plants cannot draw nutrients from that desiccated layer. Hence, boron deficiency diseases appear in dry weather. [citation needed]
This is a list of diseases of carrots ... Boron deficiency Ozone injury Ozone pollution ... The Cornell Plant Pathology Vegetable Disease Web Page This page was last ...