Boron toxicity (B). Symptoms on plant leaves. The case of citrus fruits.

Symptoms of boron toxicity in citrus leaves are presented. Boron is an inorganic nutrient that is essential for the growth and development of all plants. However, when boron concentrations within plant tissues are much higher than normal, the toxic effects of boron appear predominantly in the form of chlorosis (yellowing) of the periphery of the oldest leaves of most plant species. The video shows the characteristic symptoms of boron toxicity in citrus plants, specifically in orange and lemon trees.
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