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相关概念视频

Seed Structure and Early Development of the Sporophyte02:33

Seed Structure and Early Development of the Sporophyte

Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo.

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PLAGIOTROPIC HABIT OF GROWTH IN NORWAY SPRUCE.

Science (New York, N.Y.)·1942
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ROOTING NORWAY SPRUCE CUTTINGS WITHOUT CHEMICAL TREATMENT.

Science (New York, N.Y.)·1939
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EFFECTS ON TREES OF AN ILLUMINATING GAS IN THE SOIL.

Plant physiology·1936
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METHYLENE BLUE AND GASSED PLANTS.

Science (New York, N.Y.)·1934
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STIMULATIVE EFFECTS OF ILLUMINATING GAS ON TREES.

Science (New York, N.Y.)·1932
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CHEMICAL TREATMENT TO SHORTEN THE REST PERIOD OF SUGAR MAPLE TREES.

Science (New York, N.Y.)·1929

相关实验视频

Updated: Jul 12, 2026

Reliable Method for Assessing Seed Germination, Dormancy, and Mortality under Field Conditions
07:03

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Published on: November 6, 2016

化学处理可以缩短树种的休息期.

C G Deuber

    Science (New York, N.Y.)
    |March 20, 1931
    PubMed
    概括

    No abstract available in PubMed .

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