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प्रश्न
Describe the characteristic features of wind pollinated flowers.
उत्तर
(b) Characteristics of wind pollinated flowers
i. It shows compact inflorescence
ii. It has well exposed stamens.
iii. The plants produce large quantity of pollens
iv. The pollens are dry and unwettable
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संबंधित प्रश्न
Geitonogamous flowering plants are genetically autogamous but functionally cross-pollinated. Justify.
Why angiosperm anthers are called dithecous?
Complete the following chart and rewrite.
Sr.No. | Agencies | type of pollination |
1 | Water | .................... |
2 | ........................... | Entomophily |
3 | Bat | .................... |
4 | ....................... | Ornithophily |
(Or)
Explain outbreeding devices in angiospermic plants.
Exine and intine are the parts of
Fill in the blanks with suitable words.
Different timings for the maturation of gynoecium and androecium is called ________.
Write different modes of pollination in detail with suitable examples.
Differentiate Between Cross Pollination and Self Pollination:
What are the adaptations which are required in cross-pollinated
Match the Column I with Column II.
Column I | Column II |
A. Pea | (i) Xenogamy |
B. Jawar | (ii) Epihydrophily |
C. Maize | (iii) Anemophily |
D. Vallis | (iv) Bisexual |
E. Cannabis | (v) Geitonogamy |
When and why does a plant breeder employ the emasculation technique?