166942 Nicotiana sylvestris flowers only during long days and $N$. tabacum flowers only during short days. If raised in the laboratory under different photoperiods, they can be induced to flower at the same time and can be cross-fertilized to produce self-fertile offspring. What is the best reason for considering $N$. sylvestris and $N$. tabacum to be separate species: -

166943 Refer the given figures on photoperiodism and select the correct option.

166937 Assertion (A) : Lettuce seeds are positively photoblastic.
Reason (R) : Gibberellin application effectively works as a substitute in darkness for germination.
The correct answer is:

166908 Flash of light in dark inhibits flowering in

166911 Which of the following induces flowering in long day plants?

166942 Nicotiana sylvestris flowers only during long days and $N$. tabacum flowers only during short days. If raised in the laboratory under different photoperiods, they can be induced to flower at the same time and can be cross-fertilized to produce self-fertile offspring. What is the best reason for considering $N$. sylvestris and $N$. tabacum to be separate species: -

166943 Refer the given figures on photoperiodism and select the correct option.

166937 Assertion (A) : Lettuce seeds are positively photoblastic.
Reason (R) : Gibberellin application effectively works as a substitute in darkness for germination.
The correct answer is:

166908 Flash of light in dark inhibits flowering in

166911 Which of the following induces flowering in long day plants?

166942 Nicotiana sylvestris flowers only during long days and $N$. tabacum flowers only during short days. If raised in the laboratory under different photoperiods, they can be induced to flower at the same time and can be cross-fertilized to produce self-fertile offspring. What is the best reason for considering $N$. sylvestris and $N$. tabacum to be separate species: -

166943 Refer the given figures on photoperiodism and select the correct option.

166937 Assertion (A) : Lettuce seeds are positively photoblastic.
Reason (R) : Gibberellin application effectively works as a substitute in darkness for germination.
The correct answer is:

166908 Flash of light in dark inhibits flowering in

166911 Which of the following induces flowering in long day plants?

166942 Nicotiana sylvestris flowers only during long days and $N$. tabacum flowers only during short days. If raised in the laboratory under different photoperiods, they can be induced to flower at the same time and can be cross-fertilized to produce self-fertile offspring. What is the best reason for considering $N$. sylvestris and $N$. tabacum to be separate species: -

166943 Refer the given figures on photoperiodism and select the correct option.

166937 Assertion (A) : Lettuce seeds are positively photoblastic.
Reason (R) : Gibberellin application effectively works as a substitute in darkness for germination.
The correct answer is:

166908 Flash of light in dark inhibits flowering in

166911 Which of the following induces flowering in long day plants?

166942 Nicotiana sylvestris flowers only during long days and $N$. tabacum flowers only during short days. If raised in the laboratory under different photoperiods, they can be induced to flower at the same time and can be cross-fertilized to produce self-fertile offspring. What is the best reason for considering $N$. sylvestris and $N$. tabacum to be separate species: -

166943 Refer the given figures on photoperiodism and select the correct option.

166937 Assertion (A) : Lettuce seeds are positively photoblastic.
Reason (R) : Gibberellin application effectively works as a substitute in darkness for germination.
The correct answer is:

166908 Flash of light in dark inhibits flowering in

166911 Which of the following induces flowering in long day plants?