Question:
The grape vine flowers are borne in clusters or panicles on
The grape vine flowers are borne in clusters or panicles on
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Because grapevine flowers develop on the lower nodes (typically 3--5) of current-season shoots, spur-pruned varieties are pruned back to 2--4 buds, while cane-pruned varieties require longer canes to ensure productive nodes are retained.
Updated On: Jul 23, 2026
- 1-2 node
- 3-5 node
- 5-7 node
- 8-10 node
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
This question focuses on the reproductive biology and flowering habit of the grapevine (*Vitis vinifera*).
In viticulture, knowing exactly where flowers and fruit clusters develop along the shoots is essential for pruning and canopy management.
Step 2: Detailed Explanation:
Let us look at the flowering habit of grapevines:
Grapevine flowers develop on current-season shoots that emerge from compound buds on the previous year's canes.
These flowers are borne in complex branching clusters called panicles.
Typically, these flower clusters develop opposite the leaves on the lower nodes of the new shoot.
Specifically, they emerge at the $3^{\text{rd}}$, $4^{\text{th}}$, or $5^{\text{th}}$ nodes from the base of the shoot.
Nodes below this range ($1^{\text{st}}$ and $2^{\text{nd}}$ nodes) usually remain vegetative or carry small, undeveloped tendrils.
Nodes above the $5^{\text{th}}$ or $6^{\text{th}}$ node continue to grow vegetatively, producing leaves and tendrils but rarely forming commercial fruit clusters.
This consistent spatial pattern helps growers prune shoots effectively to balance vegetative growth and fruit yield.
Step 3: Final Answer:
Grapevine flower clusters are typically borne on the 3--5 nodes of the shoot.
This corresponds to Option (B).
This question focuses on the reproductive biology and flowering habit of the grapevine (*Vitis vinifera*).
In viticulture, knowing exactly where flowers and fruit clusters develop along the shoots is essential for pruning and canopy management.
Step 2: Detailed Explanation:
Let us look at the flowering habit of grapevines:
Grapevine flowers develop on current-season shoots that emerge from compound buds on the previous year's canes.
These flowers are borne in complex branching clusters called panicles.
Typically, these flower clusters develop opposite the leaves on the lower nodes of the new shoot.
Specifically, they emerge at the $3^{\text{rd}}$, $4^{\text{th}}$, or $5^{\text{th}}$ nodes from the base of the shoot.
Nodes below this range ($1^{\text{st}}$ and $2^{\text{nd}}$ nodes) usually remain vegetative or carry small, undeveloped tendrils.
Nodes above the $5^{\text{th}}$ or $6^{\text{th}}$ node continue to grow vegetatively, producing leaves and tendrils but rarely forming commercial fruit clusters.
This consistent spatial pattern helps growers prune shoots effectively to balance vegetative growth and fruit yield.
Step 3: Final Answer:
Grapevine flower clusters are typically borne on the 3--5 nodes of the shoot.
This corresponds to Option (B).
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