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Importance of day length in flowering of plants was first shown in
Options
(a) lemna
(b) tobacco
(c) cotton
(d) petunia
Correct Answer:
tobacco
Explanation:
Photoperiodism was first studies by Garner and Allard (1920). They observed that “Maryland Mammoth” variety of tobacco could be made to flower in summer by reducing the light hours with artificial darkening. It could be made to remain vegetative in winter by providing extra light.
Related Questions: - In which zone is limited human activity permitted
- A location with luxuriant growth of lichens on the trees indicates that the :
- Secretions of ductless glands are known as
- Maximum nutritional diversity is found in the group
- How insulin lowers the blood sugar?
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Photosynthesis and Plant Growth
(26)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In which zone is limited human activity permitted
- A location with luxuriant growth of lichens on the trees indicates that the :
- Secretions of ductless glands are known as
- Maximum nutritional diversity is found in the group
- How insulin lowers the blood sugar?
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Photosynthesis and Plant Growth (26)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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