Plant breeding

History:
– Plant breeding began with sedentary agriculture
– Domestication of the first agricultural plants dates back 9,000 to 11,000 years
– Early farmers selected food plants with desirable characteristics
– Improvement in plants was achieved through selection
– Plant breeding has evolved with advancements in genetics and technology

Goals:
– Produce crop varieties with superior traits
– Address agricultural traits like stress tolerance, yield, and quality
– Enhance end-use quality characteristics such as taste and nutrient content
– Focus on ease of processing for different applications
– Aim to create new plant varieties with specific outcomes

Techniques:
– Plant breeding techniques range from selection of desirable plants to molecular methods
– Genetics and chromosomes play a crucial role in determining plant traits
– Genes in plants dictate qualitative and quantitative characteristics
– Plant breeders narrow down genetic diversity to specific biotypes
– Molecular techniques have revolutionized the field of plant breeding

Global Impact:
– Plant breeding is practiced worldwide by gardeners, farmers, and professionals
– Organizations like government institutions and universities employ plant breeders
– New crop varieties are crucial for food security and adapting to different environments
– Breeding new varieties helps in increasing yields and resistance to diseases and drought
– Plant breeding has a significant impact on land use efficiency and carbon emissions

Case Studies:
– Europe would have produced 20% fewer arable crops without plant breeding
– This would have led to consuming an additional 21.6 million hectares of land
– The process would have resulted in emitting 4 billion tonnes of carbon
– Wheat species developed for Morocco are being used to create new varieties for northern France
– Soybeans, previously grown in southern France, are now cultivated in southern Germany