NEET BIOLOGY

Detailed explanation-1: -Phosphorus deficiency in plants can be visually identified at the early vegetative stage as an abnormally dark green or reddish purple color along the edge of the lower plant leaves (figure 1).

Detailed explanation-2: -Phosphorus. Phosphorus is essential for the development of flowers, fruit and roots. It is a mobile nutrient and is moved from older leaves to the newly developing tissue. Older leaves turn a darker green followed by a purplish tint starting from the leaf margins.

Detailed explanation-3: -Phosphorus deficiency tends to inhibit or prevent shoot growth. Leaves turn dark, dull, blue-green, and may become pale in severe deficiency. Reddish, reddish-violet, or violet color develops from increased anthocyanin synthesis. Symptoms appear first on older parts of the plant.

Detailed explanation-4: -The purple color in leaves comes from pigments called anthocyanins. These pigments also give many red-and purple-colored fruits and flowers their color, as well as tree species that turn a reddish color in autumn.

Detailed explanation-5: -What causes phosphorus deficiency in plants? A shortage of phosphorus can be caused by many different factors, such as: The pH level in the soil or substrate being too low. The soil or substrate being (too) dense, complicating and obstructing the intake of phosphorus.