Importance of day length in flowering of plants was first shown in

Lemna

tobacco

Cotton

Petunia

Solution

tobacco

The phenomenon of photoperiodism was first discovered by Garner and Allard (1920, a mammoth variety of tobacco could be made to flower only by reducing the light hours with artificial darkening. On the basis of photoperiodic response to flowering, plants (tobacco), long day plant (eg, wheat, hanbane), short - long day plant (eg Campanula), long short day plants, (eg, wild kidney bean) and day neutral plants (eg, cotton).

Some More Questions From Sexual Reproduction in flowering Plants Chapter

Development of embryo from any cell of nucellus is called :

Parthenocarpic fruit is :

The entry of pollen tube into embryo sac through the integuments is termed as :

512 microspores will be formed following meiosis of how many microspore mother cells.

Pollination by water occurs in :

In ................... flowers, the thalamus grows upwards completely enclosing the ovary, and the stamens, petals and sepals are borne above the ovary.

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Sexual Reproduction In Flowering Plants

Importance of day length in flowering of plants was first shown in

Lemna

tobacco

Cotton

Petunia

Some More Questions From Sexual Reproduction in flowering Plants Chapter

Development of embryo from any cell of nucellus is called :

Parthenocarpic fruit is :

The entry of pollen tube into embryo sac through the integuments is termed as :

512 microspores will be formed following meiosis of how many microspore mother cells.

Pollination by water occurs in :

In ................... flowers, the thalamus grows upwards completely enclosing the ovary, and the stamens, petals and sepals are borne above the ovary.

In Calotropis, all the microspores of anther lobe remain united to form

Albuminous seeds store reserve food materials in ....................

Transfer of pollen grains from the anther to the stigma of another flower of same plant is called..............................

The...................direct the growth of pollen tube towards egg apparatus by secreting some chemical substances.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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For Daily Free Study Material Join wiredfaculty

Sexual Reproduction In Flowering Plants

Importance of day length in flowering of plants was first shown in Lemna tobacco Cotton Petunia

Some More Questions From Sexual Reproduction in flowering Plants Chapter

Development of embryo from any cell of nucellus is called :

Parthenocarpic fruit is :

The entry of pollen tube into embryo sac through the integuments is termed as :

512 microspores will be formed following meiosis of how many microspore mother cells.

Pollination by water occurs in :

In ................... flowers, the thalamus grows upwards completely enclosing the ovary, and the stamens, petals and sepals are borne above the ovary.

In Calotropis, all the microspores of anther lobe remain united to form

Albuminous seeds store reserve food materials in ....................

Transfer of pollen grains from the anther to the stigma of another flower of same plant is called..............................

The...................direct the growth of pollen tube towards egg apparatus by secreting some chemical substances.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Importance of day length in flowering of plants was first shown in

Lemna

tobacco

Cotton

Petunia