| 词汇 | epicotyl |
| 释义 | BETA Examples of epicotylepicotyl isn’t in the Cambridge Dictionary yet. You can help! They came to this conclusion because cold stratification was not required to break epicotyl dormancy. Thus, ours appears to be the first report of epicotyl dormancy for the genus. To circumvent problems associated with the asynchrony of germination, morphological criteria were used to select germinated seeds, using radicle and epicotyl length as the defining characteristics. In this way, the epicotyl pushes the plumule above the ground. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In contrast, seedlings grown in the dark develop long hypocotyls and their cotyledons remain closed around the epicotyl in an "apical hook". From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In sunflower seedlings, the difference between epicotyl and hypocotyl can be seen from the parts of the stem divided by the first pair of leaves. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The epicotyl (part of the stem above the cotyledon) grows, while the hypocotyl (part of the stem below the cotyledon) stays the same length. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The hypocotyl (part of the stem below the cotyledon) grows, while the epicotyl (part of the stem above the cotyledon) stays the same length. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Epicotyl grafting, approach grafting and patch budding have proved successful, epicotyl grafting being the most widely adopted standard. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. During germination, the seedling becomes infected through the epicotyl and cotyledons may develop blackened margins, shrivel, and drop. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In most plants the epicotyl will eventually develop into the leaves of the plant. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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