Multiple Choice QuestionsPhototropic curvature in Avena coleoptile is the result of uneven distribution of
auxin
starch
gibberellins
phytochrome
Study of bakanae disease of rice led to discovery of
auxins
bakery rice
Both (a) and (b)
gibberellins
D.
gibberellins
In Japan, 'bakanae disease' or 'foolish seedling disease' in rice was known. It was found that there is some connection between bakanae disease and fungus Gibberella fujikuroi or Fusarium moniliformae. The active substance present in fungus was separated and named gibberellin by Yabuta.
Equipment used for the measurement of growth in plants is known as
respirometer
auxanometer
atmometer
potometer
When an ovary develops into a fruit without fertilization it is called
porogamy
apospory
apogamy
parthenocarpy
GA usually promotes
sterility in flowers
maleness in flowers
femaleness in flowers
Both (b) and (c)
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