Question

The pollen grains of rice and wheat lose their viability inminutes of their release

30

10

60

90

Solution

Pollen viability is the period for which pollen grains retain the ability to germinate. It is little in flowers which are pollinated in bud condition. Eg, it is 30 minutes in rice and wheat. It depends upon environmental conditions of temperature and humidity.

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The pollen grains of rice and wheat lose their viability inminutes of their release

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Reproduction In Organisms

The pollen grains of rice and wheat lose their viability inminutes of their release

30

10

60

90

Some More Questions From Reproduction in Organisms Chapter

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Mock Test Series

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For Daily Free Study Material Join wiredfaculty

Reproduction In Organisms

The pollen grains of rice and wheat lose their viability inminutes of their release 30 10 60 90

Some More Questions From Reproduction in Organisms Chapter

Sexual stage (gametocytes) of Plasmodium occurs in

Sporopollenin is a constituent of pollen exine. It can be degraded by the action of

The pollen grains of rice and wheat lose their viability inminutes of their release

After doble fertilization, a mature ovule has

Genetically modified (GM) crops can be produced by

Which of the following is a palindromic sequence?

Which of the following is true for a recessive disease in Family A and B?

The 'cells of Rauber' are

Which is correctly labelled with respect to the given diagram

Choose the correct statement.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

The pollen grains of rice and wheat lose their viability inminutes of their release

30

10

60

90