Category Archives: Uncategorized

Symptoms of plants deficient in essential elements

If the essential elements are supplied in limited qunatities, the growth of plant will be reduced. The concentration of essential elements below which the growth of plant is reduced is known as critical concentration of the element. If the element … Continue reading

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Role of macro and micro nutrients

Based on the criteria of essentiality, some of the elements are considered to be very much essential for the growth and metabolism of the plant. These elements are further classified into two groups. They are micronutrients and macronutrients. Essential elements … Continue reading

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Types of Roots

Roots are helpful for the plants as they provide support to the stems as well as absorb water and minerals from the soil. Roots also store food materials. Root system is present in two types. They are primary root and … Continue reading

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Essential mineral elements required by plants

Minerals enter into plants through roots. Plants were found to be consisting of more than 60 elements. Selenium and gold are also accumulated by some plants. Plants surviving near nuclear test sites will absorb even radioactive strontium. How to check … Continue reading

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MINERAL NUTRITION OF PLANTS

The basic requirements of all the plants are macro molecules, such as carbohydrates, proteins, fats, minerals and water. These elements help in the growth and development of plants. This article discusses the various methods involved in the growth and development … Continue reading

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Pressure flow or mass flow hypothesis

The process of translocation of sugars from the source to the sink is known as a pressure flow hypothesis. Glucose is synthesized by photosynthesis and it is changed into sucrose. Sucrose moves into the companion cells and then into the … Continue reading

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Phloem Transport – Flow from Source to Sink

The primary food source commonly called as sucrose is transported by the vascular tissue phloem from the source to the sink. The source is the plant part which can synthesize the food, like leaves. Sink is the plant part that … Continue reading

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Mechanism of water transport

Plants unlike animals do not possess any metabolically active pump, like the heart to carry the fluid in the vascular system. The movement of water in passive manner occurs by pressure and by the gradient in the chemical potential. Another … Continue reading

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Transport and uptake of mineral nutrients

The carbon and oxygen for the plant is available from the carbon-dioxide present in the atmosphere. The hydrogen for the plants is obtained from the water and the mineral nutrients are obtained from the soil. The plant roots cannot absorb … Continue reading

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Transpiration and Photosynthesis

The various advantages of transpiration are –          Generates transpiration pull that helps in the absorption and transport of water in plants. –          Provides water for photosynthesis. –          The minerals are transported from the soil in the various parts of the … Continue reading

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