Question

A dry indehiscent fruit is
(a) Caryopsis
(b) Follicle
(c) Capsule
(d) Pod

Answer 1

Hint: It is a simple unicarpellate dry fruit where the pericarp is fused with a thin seed coat. The fruits are also known as grains. This is generally the characteristic of the family Poaceae. They are indehiscent and it does not open at the time of maturity.

Complete answer: -
-Caryopsis is a form of a simple and dry fruit that is unicarpellate and indehiscent in nature. It is generally observed in the case of the rice, wheat, and corn, and is the characteristic of the family Poaceae.
-It resembles achene, which is a simple, unicarpellate, and indehiscent dry fruit but has a single seed that fills the pericarp that does not adhere to it. In caryopsis, the pericarp is fused with a thin seed coat.
-These fruits are also termed cereals or grains.

Additional Information:
-In caryopsis, the ovary wall is united with the seed coat, and fused into a single unit.
-At maturity it does not open and is formed from a single carpel.
-Caryopsis is found in all the cereal grains except buckwheat.
-The legume fruit is found in the pea or Pisum sativum that is simple and dehiscent.
- Several whole pulses that include the mung bean, chickpea, soybean, urad, etc are collectively termed as Gram which is used for consumption and are the examples of the legume fruits.
-Lentils are edible legumes and their plants have the lens-shaped seeds, also known as dals. The seeds constitute a pod growing with two seeds.
-Other types of fruits include capsules, berries, follicles, loments, drupes, nuts, pomes, schizocarps, siliques, etc.

So, the correct answer is ‘Wheat’.

Note: -
A grain is defined as a small, hard seed that does not have a hull or a fruit layer.
- The flowers are removed during processing bracts and are considered as the hulls in these grains.
- Family Poaceae belongs to the kingdom Plantae and orders Poales.