Question

Match List-I with List-II
\[\begin{array}{|l|l|} \hline \textbf{List-I} & \textbf{List-II} \\ \textbf{Root stock} & \textbf{Characteristics} \\ \hline \text{(A). M-9} & \text{(I). Frost resistant} \\ \hline \text{(B). BUD 9} & \text{(II). Woolly aphid resistant} \\ \hline \text{(C). M-27} & \text{(III). Compatible with all apple scions} \\ \hline \text{(D). MM-106} & \text{(IV). Ultra dwarf} \\ \hline \end{array}\]
Choose the correct answer from the options given below:

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (I), (B) - (III), (C) - (II), (D) - (IV)
• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (III), (B) - (I), (C) - (IV), (D) - (II)

Hint:

For apple rootstocks, remember the series: 'M' (Malling) are the original series. 'MM' (Malling-Merton) are woolly aphid resistant. 'BUD' (Budagovsky) are Russian and cold-hardy. 'G' (Geneva) are modern, disease-resistant rootstocks.

Answer 1

The Correct Option is D

Step 1: Concept Overview:
This question assesses understanding of apple rootstocks, focusing on traits like size control, pest resistance, and environmental tolerance.

Step 2: Breakdown:
Match each rootstock to its characteristic:
\[\begin{array}{rl} \bullet & \text{(B) BUD 9 (Budagovsky 9): Bred for cold hardiness, making it (I) Frost resistant. } \\ \bullet & \text{(C) M-27 (Malling 27): The most dwarfing commercial rootstock, even smaller than M-9, thus an (IV) Ultra dwarf rootstock. } \\ \bullet & \text{(D) MM-106 (Malling-Merton 106): Bred for pest resistance; known for being (II) Woolly aphid resistant. } \\ \bullet & \text{(A) M-9 (Malling 9): World's most famous dwarfing rootstock; (III) Compatible with all apple scions is a key characteristic. } \\ \end{array}\]The correct matches are: A \(\rightarrow\) III, B \(\rightarrow\) I, C \(\rightarrow\) IV, D \(\rightarrow\) II.

Step 3: Solution:
The correct matches align with option 4.