Advertisements
Advertisements
Question
What is bagging technique?
Solution
Various artificial hybridisation techniques (under various crop improvement programmes) involve the removal of the anther from bisexual flowers without affecting the female reproductive part (pistil) through the process of emasculation. Then, these emasculated flowers are wrapped in bags to prevent pollination by unwanted pollen grains. This process is called bagging.
APPEARS IN
RELATED QUESTIONS
Can cross-pollination occur in cleistogamous flowers? Give reason for your answer.
Name two characteristics of flowers in which pollination occur by wind.
Differentiate between the following:
Self pollination and cross pollination.
Compare the characteristic features of insect pollinated and wind pollinated flowers. Explain how the respective features assist in pollination.
Which one of the following is one of the characteristics of self-pollinated flowers?
Give one word/term for the following:
Pollination of flowers by birds.
Choose the correct option of the following question:
Type of Interaction where an individual sacrifices its own welfare (life) for the benefit of another animal of its own species is:
Differentiate between geitonogamy and xenogamy.
Describe pollination. How many types of pollinations are found?
Give an account of various abiotic agencies used in pollination along with their adaptations for pollination.
Choose the correct statement from the following.
A particular species of plant produces light, non-sticky pollen in large numbers and its stigmas are long and feathery. These modifications facilitate pollination by ______.
Cleistogamous flowers are ______.
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by ______.
The flower which possesses both androecium and gynoecium is called perfect or ______.
Advantage of cleistogamy is:
What is ornithophily?
Consider the following statements depicting adaptation of flowers to carryout successful pollination.
- Stigma is long, sticky and unwettable.
- Sepals, petals or perianth (if present) have waxy coating.
- Stamens with long filament and versatile anthers.
- Tubular corolla is seen.
- Flowers are noctumal.
Which of the above statements clearly depict hydrophily?
Which of the following floral adapation are adapted by hydrophilous flowers?
