The mosaic disease of tobacco
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Distribution of the virus of t
Distribution of the virus of the mosaic disease in capsules, filaments, anthers, and pistils of affected tobacco plants
Effect of the relative length
Effect of the relative length of day and night and other factors of the environment on growth and reproduction in plants
Flowering behavior and natural
Flowering behavior and natural distribution of the eastern ragweeds (Ambrosia) as affected by length of day
Further observations of the re
Further observations of the response of various species of plants to length of day
Further studies of the mosaic
Further studies of the mosaic disease of tobacco
Length of day in relation to t
Length of day in relation to the natural and artificial distribution of plants