Explanation

• Cotton consists of seed and lint (fiber).
• On average, from 40 kg of raw cotton, 16 kg seeds and 24 kg lint are obtained.
• Lint is used for textile production, while seeds are used for oil extraction and animal feed.

Last verified on 03-02-2026

Explanation

• In cotton, jassid infestation causes stress, leading flowers to change color from white to pink.
• Jassids are small, sap-sucking insects that damage leaves and flowers.
• Early detection is important to prevent yield loss and maintain crop health.

Last verified on 03-02-2026

Explanation

• Registered seeds are identified with a purple tag under standard seed certification guidelines.
• Tag colors indicate the category and quality of seeds for farmers.

Additional information:

• Breeder Seed: Golden Yellow
• Foundation Seed: White
• Certified Seed: Blue

Last verified on 03-02-2026

Explanation

• Variety refers to a group of plants within the same species that show distinct characteristics.
• Differences can include size, color, shape, or yield.
• Varieties are naturally occurring or selected over time for specific traits.

Last verified on 03-02-2026

Explanation

• The progeny of Breeder Seed is called Foundation Seed.
• Foundation Seed is genetically pure and used to produce Certified Seed for farmers.
• It acts as a bridge between experimental breeder seed and commercial seed production.

Last verified on 22-01-2026

Explanation

• An opinion leader is a person who influences others to adopt new ideas or innovations.
• They are trusted and respected members of a social group.
• Their recommendations often speed up the acceptance of innovations.

Last verified on 03-02-2026

Explanation

• Tomatoes for canning are harvested at the red ripe stage for best taste and preservation.
• At this stage, fruits have full color, flavor, and nutrients.
• Harvesting too early or late affects quality and shelf life of canned products.

Last verified on 03-02-2026

Explanation

• Development in fruits refers to irreversible changes in size, structure, and quality.
• It includes both quantitative (size, weight) and qualitative (taste, color, texture) changes.
• Essential for fruit to reach marketable and edible state.

Last verified on 03-02-2026

Explanation

• Mines and fisheries are natural resources that reduce output per unit when overused.
• Diminishing returns occur when each additional input produces less than the previous one.
• This principle helps manage extraction and prevent resource depletion.

Last verified on 03-02-2026

Explanation

• Modern agriculture in Pakistan relies on advanced techniques and irrigation systems.
• Traditional or rain-fed methods alone cannot meet food demand.
• Efficient water use, mechanization, and high-yield crops are essential for sustainability.