Plant Growth and Development

Through their effect on plant growth regulators, what do the temperature and light control in the plants?

Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in

“Foolish seedling” disease of rice led to the discovery of

During seed germination its stored food is mobilized

Vernalization stimulates flowering in

The pineapple which under natural conditions is difficult to blossom has been made to produce fruits throughout the year by application of

Which one of the following generally acts as an antagonist to gibberellins?

Coiling of garden pea tendrils around any support is an example of:

Which one of the following acids is a derivative of carotenoids?

Phototropic curvature is the result of uneven distribution of:

One of the synthetic auxin is:

Which one of the following pairs, is not correctly matched?

Opening of floral buds into flowers, is a type of

Which pigment is responsible for flowering in plant?

Which one of the following pigment is found in two forms?

Which one of the following hormone induces flowering?

Which of the following is a gaseous plant growth regulator?

Which of the following inhibits the growth of lateral auxillary buds?

Which of the following four phases, in the post emergence life of an angiospermic plant, begins just after germination of seed and ends when the plant develops the capacity to reproduce?

Which hormones promote the flowering in long day plants and also control sex expression in certain species?

Which hormone is maximum in coconut milk?

Vernalisation is the response due to

Thigmotropism is best exhibited by

Thigmotropic movement is best shown by

The plant responds to photoperiods due to the presence of

The plant hormone controlling fruit ripening is

The pigment responsible for photomorphogenetic response is

The most abundant naturally occurring plant hormone is

The low temperature treatment that shortens the period between sowing and the flowering is called

The leaves of Mimosa pudica droop down, when touched, due to

The leaf of Mimosa on touching becomes flaccid and droops down. This is due to

The ions extruded by auxin during cell wall extension is

The hormone which prevents seed dormancy is

The bioassay of auxin is

Tendrils exhibit

Sleeping movements in some plants is called

Sleep movements of leaves in some plants are due to

Response to contact is knowns as

Removal of seed coat, in dormant seeds, by mechanical methods is called

Pigment associated with physiological function

Phytochrome in plants is sensitive to

Movement of touch is called

Movement of stomatal opening and closing and opening of Oxalis flower share the common feature that both are

Movement of Drosera is

Leaf abscission is caused by

Induction of flowering by low temperature treatment is

In plants, the induction of flowering, by low temperature treatment, is called

In germinating seed food supply is done by

Hypothetical plant hormones are

Hormones released during stress condition is

Hormone involved in phototropism is

Growth of pollen tube towards embryo sac is

Growth movements in response to light are called

Growth in numbers is maximum in the zone of

Gibberellins cause

Gibberellin was first isolated from

Gibberellin promote

Gibberellin is obtained from

Which one of the following is not used for ex-situ plant conservation?