| 词汇 | pistil |
| 释义 | pistil noun[ C ] biology specializeduk /ˈpɪs.tɪl/ us /ˈpɪs.tɪl/ the female reproductive part of a flower, consisting of one carpel or a group of carpels joined together雌蕊（花的雌性生殖器官，包括一个心皮或连在一起的一组心皮） Joao Inacio/Moment/GettyImages Parts of plants axil bark bilobed blade bulb caning cascara sagrada corolla endodermis floret inflorescence knot rooty rosella seed coat seed pod sessile sting taproot tubule pistil | American Dictionarypistil noun[ C ] us/ˈpɪs·təl/ biology the female part of a flower, consisting of one or more of the organs that produce seeds Examples of pistilpistil The numbers above the bars represent the number of pistils assessed. Comparisons of the proportion of penetrated ovules in self- and cross-pollinated pistils were tested with a t-test of means. The male flowers were similar to hermaphrodites in size and morphology, except for the absence of a pistil. The pistils, immature fruits, and valves inside each quadrat were removed and counted weekly during the flowering and fruiting periods. A 10-m radius circle around the trunk base was considered as the pistil and valve shadow area for each tree. Clearedplants from individually, cultivated protoplasts using pistil and thick-sectioning techniques for detecting an improved microculture system. Incompatibility occurs if a pollen grain meets the corresponding pistil gene in the diploid pistil. Column heights indicate a mean of 3-5 pistils and error bars represent the upper half of 95% confidence intervals. Leaf length, petal length and width, pistil length and fruit size were measured by an electronic calliper. The pistil is ovary superior, ovoid, and five-celled; the style is columnar; the stigma is simple; the disk is ten-toothed, and ovules are many. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There are usually 3-4 stigmas attached to a single pistil per flower, which is 1 or 3-4 carpellate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The pistils have superior ovaries and five stigmas protruding from the central column in the flower. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A bunch of stamens and one long pistil protrude obviously from the mouth of the bloom, which is pollinated by nectar-feeding birds. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They have 4 petals, 8 stamens, and 1 pistil, which are mostly pollinated by bees and other insects. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The inflorescence bears flowers with pink petals just over a centimeter long and a protruding pistil. 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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