| 单词 | self-pollination |
| 释义 | self-pollination noun[U] biologyspecializeduk/ˌself.pɒl.əˈneɪ.ʃən/us/ˌself.pɑː.ləˈneɪ.ʃən/theprocessby whichpollenfrom themalepartof afloweriscarriedto thefemalepartof the samefloweror to anotherflowerof the sametype 自花授粉Plant reproduction
self-pollination| American Dictionaryself-pollination noun[U] us/ˈselfˌpɑl·əˈneɪ·ʃən/biology theprocessby whichpollenfrom themalepartof afloweriscarriedto thefemalepartof the samefloweror to anotherflowerof the sametype Examplesofself-pollinationself-pollination This means that pollen transferred within a patch contributes to geitonogamousself-pollination. From theCambridge English Corpus The possibility of an increase in abortiveself-pollinationin small or isolated populations cannot be ruled out as seed set was not quantified. From theCambridge English Corpus We also show thatself-pollinationcan lead to self-fertilization because over 70% of inflorescences hand-pollinated with self-pollen set seeds. From theCambridge English Corpus Thus, with limitedself-pollinationand mostly stable wind conditions, piassava appears to require the service of flower-visiting insects for pollen movement. From theCambridge English Corpus Sporadically, in certain environments, the male and female flowers of different plants open at the same time, and since plantations consist of only one clone,self-pollinationoccurs. From theCambridge English Corpus Photos of flowers, taken at 60-min intervals during the night, showed no indication of an adaptiveself-pollinationmechanism achieved through the movement of floral parts. From theCambridge English Corpus The flowers are usually pollinated by moths (hence the common name of the plant), butterflies and bees (entomophily), but they are capable of automaticself-pollination. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.Hibiscus breeders do not preclude the possibility ofself-pollination. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.If a being dependent on pollinating agents allowsself-pollinationto occur when bees and wind are nowhere to be found. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Crop breeding includes techniques such as plant selection with desirable traits,self-pollinationand cross-pollination, and molecular techniques that genetically modify the organism. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Much of the seed production comes fromself-pollination. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.An analysis of the genome-wide pattern of linkage disequilibrium suggested thatself-pollinationevolved roughly a million years ago or more. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.This is not the same asself-pollination, despite the common claim that tomatoes do so. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.One mechanism that limitsself-pollinationis that of self-incompatibility by which seeds are only produced by pollination from other plants. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.But the more ramets the larger the share of the pollen is lost depending on ineffectiveself-pollination. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.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. |
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