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Crop Improvement / Plant Breeding

Telangana Open School (TOSS) · Class 12 · Biology

Flashcards for Crop Improvement / Plant Breeding — Telangana Open School (TOSS) Class 12 Biology. Quick Q&A cards covering key concepts, definitions, and formulas.

44 questions30 flashcards4 concepts

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30 Flashcards
Card 1Introduction to Plant Breeding

What is plant breeding?

Answer

Plant breeding is the scientific process of improving crop plants by altering their genetic makeup to develop new varieties that are superior in yield, quality, disease resistance, and adaptability. I

Card 2Introduction to Plant Breeding

Define crop improvement.

Answer

Crop improvement refers to the enhancement of crop plants through genetic modification to produce new varieties that are better than existing ones in traits like yield, quality, and resistance to pest

Card 3Objectives of Plant Breeding

What are the main objectives of plant breeding?

Answer

The main objectives of plant breeding are: (1) to develop varieties with high yield and good quality, (2) to introduce disease and pest resistance, (3) to improve drought and stress tolerance, (4) to

Card 4Methods of Plant Breeding

What is introduction in plant breeding?

Answer

Introduction is the method of bringing high-yielding crop varieties from their natural habitat into new regions. The plant must adapt to the new environment through acclimatization. For example, IR-8

Card 5Plant Breeding Basics

What is germplasm?

Answer

Germplasm refers to the collection of seeds, pollen, or plant parts that contain all possible alleles for all genes in a crop species. It serves as a genetic resource for plant breeding programs and h

Card 6Selection Methods

Explain mass selection in plant breeding.

Answer

Mass selection is a method where plants are selected based on their visible traits (phenotype) from a mixed population. Their seeds are mixed and used to grow the next generation. It is commonly used

Card 7Selection Methods

What is pure line selection?

Answer

Pure line selection is a method used for self-pollinated crops where a single superior plant is selected, and its progeny are grown separately over several generations. After 8–10 years of selection,

Card 8Selection Methods

What is clonal selection?

Answer

Clonal selection is the process of developing new varieties from a single plant through vegetative propagation. All plants in a clone are genetically identical. This method is used in crops like potat

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What are the important topics in Crop Improvement / Plant Breeding for Telangana Open School (TOSS) Class 12 Biology?
Crop Improvement / Plant Breeding covers several key topics that are frequently asked in Telangana Open School (TOSS) Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Crop Improvement / Plant Breeding — Telangana Open School (TOSS) Class 12 Biology?
Understand the core concepts first, then work through the 44 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
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There are 30 flashcards for Crop Improvement / Plant Breeding covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

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