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Breeding and Biotechnology — Science STD 10 — Question

Tamilnadu BoardEnglish MediumSTD 10ScienceBreeding and Biotechnology2 Marks
Question
Write the role of polyploidy in crop improvement.
✓

Answer

The role of polyploidy in crop improvement are production of:
  1. Seedless watermelons (3n) and bananas (3n).
  2. TV-29 (triploid variety of tea) with larger shoots and drought tolerance.
  3. Triticale (6n) is a hybrid of wheat and rye. To make this plant fertile polyploidy is induced. It has higher dietary fibre and protein.
  4. Raphanobrassica is an allotetraploid by colchicine treatment.

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