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Seeds and Seeds Video Lecture | EVS Class 5

FAQs on Seeds and Seeds Video Lecture - EVS Class 5

1. What are the different types of seeds used in agriculture?

Ans. There are several types of seeds used in agriculture, including heirloom seeds, hybrid seeds, and genetically modified (GM) seeds. Heirloom seeds are open-pollinated and have been passed down through generations, retaining their original traits. Hybrid seeds are created by cross-breeding two different parent plants to produce seeds with specific desired traits. GM seeds have been altered at the genetic level to enhance certain characteristics, such as pest resistance or drought tolerance.

2. How do seeds germinate?

Ans. Seeds germinate through a process that begins when they absorb water, causing them to swell. This process, known as imbibition, activates enzymes that begin breaking down stored food in the seed. The embryo then begins to grow, and the seed coat splits, allowing the root (radicle) to emerge first, followed by the shoot (plumule). Germination requires optimal conditions, including moisture, temperature, and oxygen.

3. What factors affect seed viability?

Ans. Seed viability can be affected by several factors, including storage conditions, temperature, humidity, and age. Seeds stored in cool, dry places typically retain their viability longer than those stored in warm, humid environments. Additionally, certain seeds have a natural lifespan; as they age, their viability decreases due to the breakdown of cellular structures and loss of moisture.

4. Why is seed saving important?

Ans. Seed saving is important for several reasons. It helps preserve genetic diversity, ensuring that a wide variety of plants can be cultivated, which is crucial for food security. Seed saving also allows gardeners and farmers to select seeds from the best-performing plants, improving resilience and adaptability to local conditions. Furthermore, it promotes sustainability by reducing dependence on commercial seed suppliers and can lead to cost savings.

5. What are the common diseases that affect seeds?

Ans. Common diseases that can affect seeds include fungal infections like seed rot and damping-off, bacterial diseases such as bacterial blight, and viral infections. These diseases can hinder germination and weaken plant growth. Proper seed treatment, including fungicides and ensuring good planting practices, can help minimize the risk of seedborne diseases and promote healthy plant development.

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Oct 08, 2025 Last updated

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Video Description: Seeds and Seeds for Class 5 2025 is part of EVS Class 5 preparation. The notes and questions for Seeds and Seeds have been prepared according to the Class 5 exam syllabus. Information about Seeds and Seeds covers all important topics for Class 5 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Seeds and Seeds.

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Video Lecture & Questions for Seeds and Seeds Video Lecture | EVS Class 5 - Class 5 full syllabus preparation | Free video for Class 5 exam to prepare for EVS Class 5.

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37 videos|244 docs|41 tests

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