00900nam a2200205Ia 4500 CTU_138608 210402s9999 xx 000 0 und d 631.53 S592 Simmonds, N.W. Principles of crop improvement N.W. Simmonds London Longman 1979 Provides a broad introduction to the principles of plant breeding. Presents a synoptic view of crop history, linking original studies of crop origin and early evolution with recent and possible future trends in breeding. Primarily designed for senior undergraduate and graduate students of agriculture, horticulture, and applied biology. Plant breeding,Crops,Cây trồng Breeding,Cây giống,Chăn nuôi Trọng Hiếu Trung tâm Học liệu Trường Đại học Cần Thơ