The Question is from neet-botany plant-growth-and-development , and it was created by the author NISHANTH

Question

Spraying a sugarcane field with which hormone would result in increased internode elongation and thus increased sugar production?

NISHANTH · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B. Gibberellins
## CONCEPT FRAMEWORK
 **Primary Concept**: Plant hormone effects on sugarcane growth.
 **Related Topics**: Plant growth regulators, sugarcane physiology, agricultural applications.
 **Prerequisites**: Basic knowledge of plant hormones and their functions.
## SOLUTION PATHWAY
**Given Information**:
  The question focuses on increasing internode elongation in sugarcane to enhance sugar production.
  Options: Ethylene, Gibberellins, Auxins, Cytokinins.
**Method & Steps**:
 1. Identify the hormone known for promoting internode elongation.
  Reasoning: Gibberellins are the primary plant hormones responsible for stimulating internode growth.
  Formula/Rule: No specific formula, relies on biological knowledge.
 2. Relate internode elongation to sugar production.
  Working: Longer internodes lead to taller sugarcane stalks, resulting in a higher sugar yield.
  Key Point: The question directly links internode elongation to sugar production.
 3. Select the correct option.
  Result: Gibberellins (B)
  Verification: This is consistent with the known effects of gibberellins on plant growth and sugarcane yield.
 ## OPTION ANALYSIS
A :x: Ethylene promotes fruit ripening and senescence, which is detrimental to sugarcane yield.
B ✓: Gibberellins are the key hormone for promoting internode elongation, leading to increased sugarcane height and sugar production.
C :x: Auxins are involved in cell growth and differentiation, but not as directly as gibberellins for internode elongation.
D :x: Cytokinins primarily affect cell division and are less effective in promoting internode growth.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing the roles of ethylene and gibberellins: Ethylene is associated with ripening and senescence, while gibberellins promote growth.
  2.Failing to connect internode elongation with increased sugar yield: understanding the relationship between plant structure and yield is important.
 **Quick Tips**:
  1.Remember that gibberellins are the primary drivers of internode elongation in many plants, including sugarcane.
  2.Visualize the effect of longer internodes on the overall size and sugar content of the sugarcane stalk.

NISHANTH · Answer

Ethylene

NISHANTH · Answer

The correct Option is "Gibberellins"

NISHANTH · Answer

Auxins

NISHANTH · Answer

Cytokinins

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