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Chapter 1: Problem 23

Vegetative propagules of Solanum tuberosum is (a) Tuber (b) Rhizome (c) Bulbil (d) Offset

Short Answer

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(a) Tuber

Step by step solution

01

Identifying the Plant

Identify the plant mentioned in the exercise, which is Solanum tuberosum, also commonly known as the potato.
02

Understanding Vegetative Propagation and Propagules

Recall information about vegetative propagation, which is the way plants can reproduce asexually. The plant parts which can give rise to the reproduction process are known as vegetative propagules. These can include the stem, roots, leaves.
03

Identifying the Correct Propagules

Identify the correct vegetative propagules of Solanum tuberosum. Since a potato reproduces through underground stems or 'tubers', the correct answer is tubers.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Solanum tuberosum
Solanum tuberosum is the scientific name for the common potato. It's a staple food in many parts of the world. Potatoes are versatile and can be cooked in various ways, but they are also fascinating in how they reproduce and grow. Potatoes belong to the nightshade family, along with tomatoes and eggplants.

Potatoes are grown all over the globe, but they thrive in temperate climates. They need a good amount of sunlight and well-drained soil for optimal growth. Let's explore how these seemingly simple tubers contribute to reproduction and the cycle of life for potatoes.
Tuber
A tuber is a thickened part of a plant stem that grows underground. It stores nutrients for the plant, making it an energy reservoir. The potato tuber is an amazing part of the plant which allows it to reproduce and survive harsh conditions.

Each potato tuber can produce new shoots, which grow into new potato plants. This unique ability of tubers helps potatoes to spread easily. When you plant a piece of potato with an "eye," that eye can sprout and grow into a fully new plant.
  • Energy Storage: Tubers store starches and sugars, providing energy for the potato plant.
  • Growth Point: The "eyes" on a tuber are growth points where new stems and roots will sprout.
  • Reproduction: Tubers enable plants to reproduce without seeds, ensuring survival and fast propagation.
Potatoes may seem simple, but their underground growth and nutrient storage make them highly effective survivors.
Asexual reproduction
Asexual reproduction in plants is a fascinating way that allows them to reproduce without seeds. This means that a single plant can produce offspring identical to itself. In the case of Solanum tuberosum, asexual reproduction occurs through vegetative propagation, specifically via tubers.

This method of reproduction offers several advantages:
  • It is quicker since it doesn't require flowering and seed germination.
  • Plants can spread and colonize new areas rapidly.
  • Offspring are genetically identical, keeping desirable traits.
On the flip side, genetic diversity is limited, which can be a disadvantage in changing environments.

In simple terms, asexual reproduction through tubers helps ensure that the potato plant survives and thrives, even if conditions aren't perfect for seed growth.

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