Which of the following statements are correct regarding the factors affecting the absorption of water by plants?
$(i)$ In plants,the rate of water absorption is minimum at a soil temperature of $20^{\circ}C$ to $30^{\circ}C$.
(ii) The presence of capillary water is essential in the soil.
(iii) Poorly aerated soil shows a poor absorption rate.
(iv) $A$ low transpiration rate accelerates the rate of absorption of water in irrigated soil.
$(v)$ $A$ high concentration of solutes in soil water reduces the rate of absorption of water.

  • A
    $ii$ and $iii$ only
  • B
    $ii, iii$ and $v$ only
  • C
    $i, ii, iii$ and $iv$ only
  • D
    $i, ii, iii$ and $v$ only

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$III-$ There is an exchange of materials between xylem and phloem.
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$V-$ Organic phosphorus and sulfur are also found in xylem tissue.

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$I.$ Mycorrhizal association between fungus and root of plant $(Pinus)$ is often obligate.
$II.$ $Pinus$ and orchid seeds can germinate and grow into plant in absence of mycorrhizal association.
$III.$ Absorption of water along with mineral solute by root hairs is purely a process of diffusion.
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Choose the correct option.

Study the following statements and choose the correct option$(s)$ from the codes below:
$I$. Root pressure provides a light push in the overall process of water transport.
$II$. Root pressure causes the flow of water faster through xylem than it can be lost by transpiration.
$III$. In symplast pathway,water moves exclusively through the cell wall and intercellular spaces.
$IV$. Guttation is a cause of transpiration pull.
$V$. Most plants fulfill their water requirement by transpiration pull.

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