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·专论·杂交水稻的育种战略设想…………………………………………………………………………(1—1)开发粮食生产的新途径 ──论发展杂交早稻生产的价值………………………………………………………(1—3)加速发展杂交早稻是提高粮食产量的重要途径…………………………………
· Monographs · Hybrid Breeding Strategies for Hybrid Rice ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... ─ The Value of Developing Hybrid Early Rice ................................................................ (1-3) Accelerating the Development of Hybrid Early Rice is an Important Way to Increase Grain Output ............... ........................