Question

Vivipary is characteristic of
a. Mesophytes
b. Xerophytes
c. Hygrophytes
d. Halophytes

Answer 1

Hint: Vivipary is the special type of seed germination, which occurs in some plants, where the seed is germinated inside the fruit, while the fruit is still attached to the plant, and seeds get all its nourishment from the plant, and later it goes separate and develops.

Complete answer:
- This adaptation of vivipary has mostly occurred in some halophytes.
- For example in Mangroves, there will be seed germination, while it grows and when it is still attached to the plant itself, where this germinating seed obtains all the resources from the plants.
- In this species, some seedlings fall in the water, we’re usually dispersed by the current of water waves, so once they dispersed, already germinated seeds start planting.
- While moving some develop very heavy and form some taproots, which they touch the mud and start the plantings.
- In mangroves, seedlings are mostly produced by sexual reproduction.
- Whereas in some fruits like jackfruit, citrus, avocado, in these plants also seeds are germinated within the fruits which are ripening, this is not confused with vivipary, because in these plants germination occurs because of humid climates and the surrounding environment.
- Vivipary includes the reproduction through embryos, such as shoot and bulbils, where the germination of seeds is different from those usual plants.

Hence, the correct answer is option (D).

Note: Whereas in some plants like Crassulaceae, bryophyllum, leaflets are developed from the notches of the leaves and they get detached and drop on the floor, and develop into plants, where this is a type of vegetative reproduction.