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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: - The ciliated columnar epithelial cells in humans are known to occur in :
- Cultivation of trees, in a dwarf form ,is known as
- Which one of the following proved effective for biological control of nematodal
- ICZN stands for
- One mineral activates the enzyme catalase and the other is a constituent of
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
- The ciliated columnar epithelial cells in humans are known to occur in :
- Cultivation of trees, in a dwarf form ,is known as
- Which one of the following proved effective for biological control of nematodal
- ICZN stands for
- One mineral activates the enzyme catalase and the other is a constituent of
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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