The poor quality seeds that cause many problems are mainly discolored and spotted seeds. These seeds can not be eliminated by winnowing or flotation. They can only be sorted manually. By watching this video, you will understand one of the steps of producing and using healthy seeds.
Video, French, Varieties and seeds, Diseases and pests, Irrigated lowland, Rainfed lowland, Rainfed upland, Learning
11 years, 4 months ago