Lecture notes covering Breeding of Field and Horticultural Crops. Course Code: GPBR 212 | Credits: 3(2+1).
GPBR 212 focuses on breeding objectives, genetic resources, hybrid development, and variety improvement strategies across major field and horticultural crops.
They study centres of origin and wild relatives because these sources hold useful genetic diversity for traits such as stress tolerance, resistance, adaptability, and quality improvement.
Breeding objectives are the target traits breeders want to improve, such as yield, stability, maturity, quality, pest and disease resistance, abiotic stress tolerance, and market suitability.
The ideotype concept means designing or selecting a plant type with a set of desirable traits expected to perform efficiently in a specific production environment.
Hybrid seed production is important because it allows the commercial use of heterosis, helping farmers access vigorous, high-performing hybrids in suitable crops.
Plant genetic resources provide the variation needed to broaden breeding populations, introduce new traits, and develop varieties that respond to future production and climate challenges.
They are important because crops must perform under drought, heat, salinity, pests, and diseases, so breeding for resilience improves stability as well as yield.
It includes both because breeding principles apply across crop groups, but the objectives, reproductive biology, quality traits, and management context differ by crop type.