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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 earliest members of hominids, which evolved more than four million years
- Which one of the following occurs in radioactive fall out and behaves like calcium
- Mutations caused by mutagenic agents are termed as
- Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicine, Sweet pea
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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 earliest members of hominids, which evolved more than four million years
- Which one of the following occurs in radioactive fall out and behaves like calcium
- Mutations caused by mutagenic agents are termed as
- Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicine, Sweet pea
- CO₂ compensation point will be
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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