“... strategy for seed orchard management. The dissertation is structured in five chapters. The tropic...”
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“... environment and agricultural technology: On the basis of their natural environment─hills and vice-tropical...”
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“... the orchard, recreational farm all belong to farm in transformation , conduct a way still in order to conduct...”
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“... of weather, included the tropics, with warm temperate, the frigid zone, and abundant rainfall, and has a...”
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