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प्रश्न
How polyembryony can be commercially exploited?
लघु उत्तरीय
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उत्तर
- Polyembryony increases the chances of survival of the new plants.
- Genetically uniform parental type seedlings are obtained from nucellar embryos, thus nucellar adventive polyembryony is of great significance in horticulture.
- Plantlets obtained from these embryos are disease-free.
- These embryos can be isolated and grown on embryo culture to produce clones.
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संबंधित प्रश्न
Why are some seeds referred to as apomictic seeds?
Fill in the blanks:
The male whorl, called the ________ produces ________.
Fill in the blank:
The ________contains the egg or ovum.
Fill in the blank:
________is the transfer of pollen grains from the anther of the flower to the stigma of the same or a different flower
Fill in the blanks:
The ______ are coloured to attract the insects that carry the pollen. Some flowers also produce ______ or ______ that attracts insects.
Match the column.
| Column - I (Structure before seed formation) |
Column - II (Structure after seed formation) |
||
| A. | Funiculus | I. | Hilum |
| B. | Scar of ovule | II. | Tegmen |
| C. | Zygote | III. | Testa |
| D. | Inner integument | IV. | Stalk of seed |
| V. | Embryo | ||
What is adventive polyembryony?
What is polyembryony and how can it be commercially exploited?
Give reason: Nucellar polyembryony is significant in horticulture.
Explain following term:
Polyembryony
