00806nam a2200205Ia 4500 CTU_206612 210402s9999 xx 000 0 und d 630 U84 Using diversity Enhancing and maintaining genetic resources on-farm Louise Sperling, Michael Loevinohn edited by New Delhi International development Research Centre 1995 Contents: understanding farmer seed and variety systems; participatory breeding and selection; seedbanking and seed supply systems. Di truyền,Nông nghiệp,Genetics,Agriculture Hợp tác quốc tế,International cooperation Tuyến Trung tâm Học liệu Trường Đại học Cần Thơ