Explanation

• Delta of water refers to the total water required to produce one unit of crop yield.
• For wheat, it is about 16 acre-inches per acre.
• Ensures optimal growth and maximum yield.
• Depends on soil type, climate, and irrigation method.
• Important for efficient water management in agriculture.

Last verified on 12-02-2026

Explanation

• In plants, assimilates (products of photosynthesis) are transported from leaves to other parts.
• Mainly transported in the form of sucrose, a disaccharide sugar.
• Sucrose is soluble and easily moves through phloem tissue.
• Provides energy for growth, storage, and metabolism.
• Essential for fruit, seed, and root development.

Last verified on 12-02-2026

Explanation

• CIMMYT stands for International Maize and Wheat Improvement Center.
• It is a global agricultural research organization.

Additional information:

• Headquarters: El Batán, Mexico
• Founded: 1966

Last verified on 25-01-2026

Explanation

• CLCV stands for Cotton Leaf Curl Virus.
• It is a viral disease affecting cotton crops.
• Causes leaf curling, stunted growth, and reduced yield.
• Major problem in Pakistan, India, and other cotton-growing regions.
• Transmitted by whiteflies (Bemisia tabaci).

Last verified on 12-02-2026

Explanation

• Phosphorus is an essential nutrient for root development and flowering in plants.

Common phosphorus fertilizers include:

• SSP (Single Super Phosphate)
• DAP (Diammonium Phosphate)
• Nitrophos (contains N and P)

MOP (Muriate of Potash) provides potassium (K), not phosphorus.

Last verified on 12-02-2026

Explanation

• Bolting is the rapid growth of the flowering stem (inflorescence).
• Observed in sugarbeet, where the plant shifts from vegetative to reproductive stage.
• Causes reduced root yield and sugar content.
• Triggered by long day conditions or stress.
• Important to manage for better crop harvest.

Last verified on 12-02-2026

Explanation

• Castor bean (Ricinus communis) is grown for oil extraction from seeds.
• The oil, called castor oil, has industrial and medicinal uses.
• It is classified as an oilseed crop.
• Grows in tropical and subtropical regions.
• Seeds contain ricin, a toxic compound, so processing is important.

Last verified on 12-02-2026

Explanation

• Bread wheat (Triticum aestivum) is the most widely grown wheat worldwide.
• It has six sets of chromosomes (hexaploid, 2n = 6x = 42).
• Hexaploid nature gives it genetic diversity and high yield potential.
• Originated from natural hybridization between tetraploid wheat and wild grass.
• Used mainly for bread, flour, and bakery products.

Last verified on 12-02-2026

Explanation

• Root crops are plants where the edible part grows underground.
• Carrot is a taproot crop, rich in nutrients like beta-carotene.
• Root crops are important for food and nutrition.

Last verified on 12-02-2026

Explanation

• The Green Revolution (1960s–70s) introduced dwarf, high-yielding crop varieties.
• These varieties respond well to fertilizers and irrigation, increasing production.
• Mainly applied to wheat and rice in developing countries.
• Helped reduce hunger and improve food security globally.
• Introduced by scientists like Norman Borlaug.

Last verified on 12-02-2026