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Propagation by vegetative structures

  1.  Vegetative propagation is a form of asexual reproduction of a plant. The new plant is genetically identical to the parent. Vegetative propagation is the process of multiplication in which a portion of fragment of the plant body functions as propagates and develops into a new individual.
  2. 1. Propagation by roots 2. Propagation by stem 3. Propagation by leaves These structures are called as vegetative propagates or propagules.
  3. 1.PROPAGATION BY ROOTS:- The roots of some plants develop adventitious buds on them e.g., Dalbergia sissoo (Shisham), Guava, poplars, Albizzia lebbek, Murraya, etc. Some tuberous adventitious roots besides possessing adventitious buds also contain sufficient quantities of, food, e.g., Dahlia and Sweet potato
  4. (a)Bulb(tunicated,non-tunicated) (b)Tuber (c)Corm (d)Rhizome (e)Runner (f)Sucker (g)Slips
  5. TUNICATED BULB NON-TUNICATED BULB 1. Form concentric rings around growth point. 2. Have protected tunic layer of dried ring layers. 3. Not easily damaged during digging. 1.Do not form concentric rings around growth point. 2.Not protected by tunic layer of dried ring layers. 3. Damaged during digging.
  6. ONION BULB GARLIC BULB DAFFODIL BULB TULIP BULB
  7. Along with bulb, small underground bulbs are produced which are known as bulblets.  The bulblets when grow to full size are termed as offset.Examples- Agave,Aloe,Sansevieria,Sedum etc.
  8. AGAVE LILY
  9. POTATO TUBER JERUSALEM ARTICHOKE TUBER DIOSCOREA TUBER IRISH POTATO TUBER
  10. GLADIOLUS CORM CROCUS CORM
  11. BANANA RHIZOME BLUEBERRY RHIZOME IRIS RHIZOME
  12. SLIPS
  13. Pineapple sucker
  14. 3.PROPAGATION BY LEAVES:- Some plants produce adventitious buds on their leaves. These buds usually remain dormant, when the leaf is attached with plant. However, the leaves when in contact with moist soil develop new plantlets along the margin.Examples- Bryophyllum,Begonia,Kalanche etc.
  15. BRYOPHYLLUM BEGONIA KALANCHOE
  16. The offsprings are genetically identical and therefore advantageous traits can be preserved. Only one parent is required which eliminates the need for special mechanisms such as pollination, etc. It is faster. Many plants are able to tide over unfavourable conditions. This is because of the presence of organs of asexual reproduction like the tubers, corm, bulbs, etc.  Vegetative propagation is especially beneficial to the agriculturists and horticulturists. They can raise crops like bananas, sugarcane, potato, etc that do not produce viable seeds. The seedless varieties of fruits are also a result of vegetative propagation.
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