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粮饲兼用新玉米杂交种──冀丰５８冀丰５８（原名５３０８）玉米杂交种，是省玉米群体改良协作组通过杂交组配而成的一个高产优质粮饲兼用新品种。１９９０～１９９２年在昆明、贵州、四川、山西等地玉米新品种展示试验，亩产分别为６８７．８、６５７．３、４３２．６、...
New Corn Hybrid for Grain and Feed ─ ─ Jifeng 58 Jifeng 58 (formerly 5308) Maize hybrid is a high-yielding and high-quality food and feed new variety that is prepared through the cross combination of the provincial corn improvement cooperative group. From 1990 to 1992 in Kunming, Guizhou, Sichuan, Shanxi and other places to test the new varieties of corn, per mu were 687.8,657.3,432.6, ...