Question

In $(i)$ porous wood, vessels are very broad in the $(ii)$ wood and are quite narrow in the $(iii)$ wood. This kind of wood is present in $(iv)$ and it translocates $(v)$ amount of water when required by the plant. Select the correct fill ups for the above paragraph.

• A. $(i)$-diffuse, $(ii)$-autumn, $(iii)$-spring, $(iii)$-Dalbergia sissoo, $(v)$-more
• B. $(i)$-diffuse, $(ii)$-spring, $(iii)$-autumn, $(iv)$-Syzygium cumini, $(v)$-less
• C. $(i)$-ring, $(ii)$-spring, $(iii)$-autumn, $(iv)$-Dalbergia sissoo, $(v)$-more
• D. $(i)$-ring, $(ii)$-autumn, $(iii)$- spring, $(iv)$- Syzygium cumini, $(v)$-less

Answer 1

Answer: (C)

$(i)$-ring, $(ii)$-spring, $(iii)$-autumn, $(iv)$-Dalbergia sissoo, $(v)$-more

Answer 2

Porous wood is the dicotyledonous wood that contains abundant vessels. Porous wood can be ring porous or diffuse porous. In ring porous wood, vessels are very broad in the spring wood and are quite narrow in the autumn wood. This kind of wood is present in Dalbergia sissoo, Cassia fistula, etc. Ring porous wood is more advanced as it provides better translocation when the requirement of the plant is high.