Question

Which one of them has explosive fruit?
A. Solanum nigrum
B. Ruellia tuberosa
C. Papaver somniferum
D. Datura alba

Answer 1

A seed is an end-product of reproduction. A potential plant with genetic differences and genetic recombination is present in the seed. It is seen in the fruit and needs to be distributed for the continuation of the race to a new place.

Complete answer: Fruits and seeds in nature are distributed in different ways. The pericarp of fruits will explode at maturity in dehiscent fruits, and seeds are ready for dispersal. Seeds are dispersed along with fruits in dehiscent fruits. In such cases, along with fruits, seeds are also liberated. As seeds and fruits do not have locomotory organs of their own, some external agencies have to move them from one location to another. In some species, fruit dispersal occurs without external influences.
Let us look at all the options to get the correct answer,
-Solanum nigrum reproduces primarily by means of seeds, which are most commonly distributed by birds and other fruit-eating animals. Solanum nigrum reproduces primarily by means of seeds, which are most commonly distributed to birds and other fruit-eating animals. This fruit's seeds are not digested and are passed along with fecal matter and dispersed as a response.
-By an explosive process, the mature dehiscent fruits burst open here. In plants like peas, beans, castor, cucumbers, Ruellia , etc., this process of seed dispersal called autochory is observed. When in contact with water, Ruellia tuberosa dry fruits burst open in two halves and throw seeds into distant locations so that the fruit is explosive.
-In Papaver somniferum , the fruit dries out as the seeds mature. Ultimately, thousands of small seeds are produced by the plant. The following season, the wind and water carry the seeds to a new position for germination. The plant dies once the seeds are released.
-In alba species, predators such as squirrels distribute seeds and if they are not killed by predators, after dropping from the tree, seeds will sprout quickly.
The correct answer, therefore, is option B-Ruellia tuberosa.

Note: When the mature dry fruits burst and scatter the seeds, the seeds of drumsticks disperse from the pods and germinate in areas with suitable conditions. In the aerial mode of dispersal, the form and size of the drumstick seed support it.