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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: - Which of the following organism does not evolve oxygen in photosynthesis
- Which one of the following is the food chain operating in ponds, lakes or sea?
- Why a vivipary an undesirable character for annual crop plants
- During the process of isolation of DNA, chilled ethanol is added to
- Which of the following is membrane less organelle?
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
- Which of the following organism does not evolve oxygen in photosynthesis
- Which one of the following is the food chain operating in ponds, lakes or sea?
- Why a vivipary an undesirable character for annual crop plants
- During the process of isolation of DNA, chilled ethanol is added to
- Which of the following is membrane less organelle?
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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