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#day length and flowering

3 public questions tagged with this topic.

PHOTOPERIODISM+PYQS

Short-long day plants flower after:

Correct option is B, Short days followed by long days. In PHOTOPERIODISM problems like this, the accurate statement is Short days followed by long days; the others are common mix-ups. Not these: A) Long days followed by short days; C) Only short days; D) Only long days. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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PHOTOPERIODISM+PYQS

In short day plants, flowering occurs when there is:

The right choice is B: Low or absence of Pfr. In PHOTOPERIODISM, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) High Pfr; C) Continuous red light; D) High Pr accumulation. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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PHOTOPERIODISM+PYQS

Plants that flower when day length is greater than critical photoperiod are called:

C fits best: Long day plants. Keep the PHOTOPERIODISM basics straight and Long day plants stands out as the precise answer. Avoid: A) Short day plants; B) Day neutral plants; D) Intermediate plants. Light and flowering items often hinge on which photoreceptor or day-length rule is in play.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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