1. What is plant introduction Narrow sense---introduction of superior cultivars Broad sense---introduction of plants(or crops 2. Implications of plant introduction p.50-52
The Significance of Breeding for Resistance to Diseases and Insect Pests抗病虫育种的意义 1. Resistance of Crops to Diseases and Insect Pests (1) Disease and pest damages are popular in Crop Production
1. Current Regulations of Agricultural seed Production 2. (1)The Current Seed Law of P.R. China 3.(2)Registration and release of plant cultivars 4.(3) Plant Breeders right 5.()Requirements for the seed Enterprises: Capitalasset; Physical/technical conditions