How to use Seed-coat in a sentence

seed-coat
  • Special outgrowths, arils, of the seed-coat are of frequent occurrence.

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  • If the fruit is a dehiscent one and the seed is therefore soon exposed, the seed-coat has to provide for the protection of the embryo and may also have to secure dissemination.

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  • As the development of embryo and endosperm proceeds within the embryo-sac, its wall enlarges and commonly absorbs the substance of the nucellus (which is likewise enlarging) to near its outer limit, and combines with it and the integument Fruit and to form the seed-coat; or the whole nucellus and even the integument may be absorbed.

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  • The seven series of Monocotyledons represent a sequence beginning with the most complicated epigynous orders, such as Orchideae and Scitamineae, and passing through the petaloid hypogynous orders (series Coronarieae) of which Liliaceae is the representative to Juncaceae and the palms (series Calycinae) where the perianth Ioses its petaloid character and thence to the Aroids, screw-pines and albuminous Dicotyledons the cotyledons act as the absorbents of the reserve-food of the seed and are commonly brought above ground (epigeal), either withdrawn from the seed-coat or carrying it upon them, and then they serve as the first green organs of the plant.

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  • In albuminous Monocotyledons the cotyledon itself, probably in consequence of its terminal position, is commonly the agent by which the embryo is thrust out of the seed, and it may function solely as a feeder, its extremity developing as a sucker through which the endosperm is absorbed, or it may become the first green organ, the terminal sucker dropping off with the seed-coat when the endosperm is exhausted.

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  • Like peas and beans the hard seed coat of rapeseed does not allow optimum penetration of Propcorn into the center of the seed.

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  • This was probably due to scarification of the seed coat during mechanical harvesting.

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  • On the other hand, indehiscent fruits discharge these functions for the embryo, and the seed-coat is only slightly developed.

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  • The pulp is of the nature of an aril, that is, an additional seed-coat.

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  • The seed coat hardens and becomes impermeable as the seeds ripen.

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