| 词汇 | example_english_seed-coat |
| 释义 | seed coatcollocation in Englishmeanings of seedand coatThese words are often used together. Click on the links below to explore the meanings. Or, see other collocations with coat or seed. seed noun uk /siːd/ us /siːd/ a small, round or oval object produced by a plant and from which, when it is planted, a new plant ... See more at seed coat noun[C] uk /kəʊt/ us /koʊt/ an outer piece of clothing with sleeves that is worn over other clothes, usually ... See more at coat Examples of seed coatThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Three seeds were missing completely, and only pieces of seedcoat remained of the other. The time of chipping seedcoat was recorded by randomly choosing 10 seed samples that contained more than 15 hard seeds. Seeds which had their seedcoat cracked were counted as removed. These results indicate that dissipation of dormancy during afterripening was not strongly influenced by seedcoat colour. Germination of seeds was scored as positive when the radicle tip had fully penetrated the seedcoat. For those species in which the seedcoat is permeable to salts, moistening of the seeds with saline solutions can cause loss of germinability. The seedcoat becomes permeable to water and the physiological dormancy of the embryo is broken. The endosperm and seedcoat of malting barley accounted for over 96% of the seed mass, compared to 26% in winterfat seeds. There seems to be an ageing effect with endogenous breakdown of the seedcoat or disruption of the chalazal region. However, it must enter through the seedcoat and reach the action site(s) where it can initiate germination. However, seeds of two of the taxa were dormant, and no seeds with a split seedcoat were ever found. This suggests that seed treatment by ants does not cause scarification on the seedcoat. Only two of 221 seeds (<1%) monitored beneath the study tree or in the experimental plots germinated, one after its seedcoat was damaged. Seeds were regarded as germinated when the radicle protruded through the seedcoat and was longer than 2 mm. Diaspores are gravity dispersed and the seedcoat rapidly decays, exposing cotyledons to the immediate environment prior to germination. However, although the seedcoat remained impermeable, and so imbibition was not possible, there appears to have been a response to the high external humidity. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Want to learn more? Go to the definition of seed Go to the definition of coat See other collocations with coat See other collocations with seed |
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