Hydroponics cannot be used in the commercial production of vegetables such as

(1) Tomato

(2) Seedless cucumber

(3) Lettuce

(4) Pomegranate

Subtopic:  Introduction |
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Which of the following is the essential requirement of Hydroponics?

(1) Aeration to obtain the optimum growth

(2) Lage vessel

(3) Broader neck

(4) Cotton plugs for funnel adjustment

Subtopic:  Introduction |
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How many elements are found in plants?

(1) 105

(2) 35

(3) 44

(4) More than 60

Subtopic:  Classification of Nutrients |
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Which of the following statements is wrong?

(1) There are techniques that are able to detect the minerals even at a very low concentration i.e. 10 mg/mL

(2) Some plant species accumulate selenium and some others gold

(3) Some plant species nuclear test sites take up radioactive Strontium

(4) The criteria for essentiality of an element completely depends upon the amount of element

Subtopic:  Classification of Nutrients |
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The elements are classified into Macronutrients and Micronutrients based on their

(1) Qualitative properties

(2) Structural properties

(3) Quantitative requirements

(4) Both B and C

Subtopic:  Classification of Nutrients |
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Micronutrients are found in

(1) More than 10mmole per Kg of dry matter

(2) Less than 10mmole per Kg of dry matter

(3) Around 1mmole per Kg of dry matter

(4) Less than 1mmole per Kg of dry matter

Subtopic:  Classification of Nutrients |
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The total essential elements for plant are

(1) 20

(2) 17

(3) 24

(4) 15

Subtopic:  Criteria for Essentiality of Elements |
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The beneficial elements are

(1) Required by higher plants

(2) Na,Si,Co,Se

(3) Other than 17 essential elements

(4) All of these

Subtopic:  Criteria for Essentiality of Elements |
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Which of the following is not a component of biomolecule is not contribute in structural elements of cell?

(1) C

(2) O

(3) N

(4) Mg

Subtopic:  Criteria for Essentiality of Elements |
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Which of the following is not a component of  energy related chemical compound in plant?

(1) Magnesium in chlorophyll

(2) Phosphorus in ATP

(3) Carbon in DNA

(4) Both 1 and 2

Subtopic:  Criteria for Essentiality of Elements |
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