Q.Lysine-rich Shakti, Rattan and Protina are varieties of which?

Shakti, Rattan and Protina are lysine-rich maize varieties, so the answer is (B).

A major achievement of plant breeding for improved nutritional quality (biofortification) was the development of maize hybrids rich in the amino acids lysine and tryptophan. The Indian improved maize varieties Shakti, Rattan and Protina were bred to have roughly double the amino-aci …

Breeding crops for higher nutritional value (proteins, vitamins, minerals, healthier fats) is called biofortification.

As crop yields increased through the Green Revolution, breeders also turned to improving the quality of food, not just its quantity. Biofortification is plant breeding aimed at raising the levels of vitamins, minerals, proteins and healthy fats in food crops, so that people who rely on a staple diet get better nutrition without needing separate supplements. Examples include maize hybrids with twice the usual lysine and tryptophan content, wheat varieties with high protein content, rice varieties with …

Biofortification breeds nutritionally enriched crop varieties (e.g., protein-rich maize, iron/vitamin-A-rich crops).

Biofortification is a plant-breeding strategy aimed at raising the level of vitamins, minerals, proteins, or healthy fats in food crops, to combat nutrient deficiencies among people who rely on those crops as staples. Examples include maize hybrids with double the amount of the amino acids lysine and tryptophan, wheat cultivar Atlas 66 with high protein content, and vitamin-A enriched sweet potato and iron/zinc-enriched rice varieties. This is achieved through conventional selective breeding among high-nutrient parent lines, and sometimes through genetic engineering. …

Bio-fortification is the breeding of crops with increased nutritional value (higher vitamins, minerals, proteins, or healthy fats) using conventional selective breeding or genetic engineering.

Bio-fortification programmes aim to fight malnutrition by improving the nutrient content of staple food crops themselves, rather than relying only on dietary diversification or supplements. For example, breeding programmes have produced maize varieties with twice the usual amount of the amino acids lysine and tryptophan, wheat varieties enriched in protein, rice varieties enriched in vitamin A, and groundnut/mustard/soyabean varieties with higher oil content and quality.

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Breeding crop varieties to improve their nutritional content (protein, oil, vitamins, minerals, etc.) is called biofortification.

Biofortification is the breeding of crop plants specifically to raise the levels of important nutrients — such as proteins, essential amino acids and vitamins (e.g. Vitamin A), minerals like iron and zinc, and healthier fats/oils — with the aim of reducing malnutrition, especially in populations that rely heavily on a single staple crop. It is achieved through conventional selective breeding as well as modern genetic engineering methods (e.g. maize varieties bred/engineered for hig …

Biofortification is plant breeding aimed at raising the nutrient content (vitamins, minerals, protein, healthy fats) of food crops.

Biofortification is the practice of breeding crop varieties with elevated levels of vitamins and minerals (or improved protein/fat quality) to fight "hidden hunger" — micronutrient deficiencies — in populations that depend heavily on a staple crop. Breeders achieve this through conventional selection/hybridization and, more recently, genetic-engineering approaches. Well-known examples include iron- and zinc-enriched wheat and rice varieties, vitamin-A-enriched "Golden Rice", and protein-ri …