If a tree in North India flowers three times a year (in October,January,and July),it is considered to be:

  • A
    Photosensitive but temperature-insensitive
  • B
    Temperature-sensitive but photo-insensitive
  • C
    Both photo and temperature-sensitive
  • D
    Both photo and temperature-insensitive

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The proteinaceous pigment that acts as the center of activities concerned with light is:

Define/Explain: Short-day plants.

The site of perception of light in plants during photoperiodism is:

Assertion: Dark period plays a more important part in flowering than the light period.
Reason: Flowering occurs in short-day plants if the dark period is interrupted by a light break.

The phenomenon where flowering is dependent on exposure to low temperatures is known as:

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