In which plant was the importance of day leng | vedclass

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(B) Garner and Allard $(1920)$ first studied the phenomenon of photoperiodism. They observed that the 'Maryland Mammoth' variety of tobacco did not fl

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Tobacco

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(B) Garner and Allard $(1920)$ first studied the phenomenon of photoperiodism. They observed that the 'Maryland Mammoth' variety of tobacco did not flower during the summer months but flowered when exposed to shorter day lengths. By providing artificial darkness during summer,they could induce flowering,and by providing extra light during winter,they could keep the plant in a vegetative state.

In which plant was the importance of day length for flowering first observed?

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