Ques. 1AIPMT 2005
Why is vivipary an undesirable character for annual crop plants?
- It reduces the vigour of the plant.
- It adversely affects the fertility of the plant.
- The seeds exhibit long dormancy.
- The seeds cannot be stored under normal conditions for the next season.
Answer
(4) The seeds cannot be stored under normal conditions for the next season.
Solution
Vivipary is the germination of seeds while they are still attached to the parent plant (e.g. mangroves such as Rhizophora), so such seeds have no dormancy period and germinate at once.
For an annual crop, however, the seed must remain dormant and viable until the next sowing season.
∴ Viviparous seeds cannot be stored under normal conditions for the next season.
Answer: (4)