ovules

胚珠

常用释义

词性释义

胚珠
例句
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Locule (locules) An air-filled compartment in an ovary in which the ovules develop.
Ovules attached to the central axis of an ovary with two or more locules.
The results were as follows: (3-days after anthesis) The ovules of the two cultivars began to grow . quickly.
Ovules attached to a free - standing column in the center of a unilocular ovary .
Simultaneously, the mutant had malformation embryo sac and two ovules inthe same ovary, which implied that D functional genes were included.
ovules numerous; placentation axile. Styles 2. Capsule ovoid, globose, or ellipsoid, dehiscing longitudinally or irregularly; pericarp thin.
ovules numerous. Stigma capitate. Fruiting pedicel pendulous.
Ovary superior or inferior, placentation axile, rarely parietal, often many ovules per locule.
Ovary superior; ovules numerous, within a globose placenta.
The undeveloped ovules in mature fruits of Bingtangcheng(Citrus sinensis) were cultured on five different media to induce embryogenic calli.
ovules 2 per locule. Style filiform; pistil head thickened, with a short basal collar and apiculate apex.
The expanded basal portion of the pistil that contains the ovules; the immature fruit.
Flowers of fly- pollinated species have much fewer ovules than flowers of moth- pollinated species.
ovules numerous. Styles absent or modified into abaxially projecting carpellary appendages.
SI allows a plant to recognize and to reject self or self-related pollen, thereby preserving its ovules for outcrossing.
integument A layer surrounding the nucellus in the ovules of gymnosperms and angiosperms.
placentas parietal and equal in number to carpels, or basilar owing to reduction of ovules.
The research demonstrated that above 90% brown ovules were living (development embryo), and above 95% green ovules were abortive.
ovules numerous, with free central placentation, longitudinal 5-fascicled.
网络释义

胚珠

子房中有一或多个卵形小体，即胚珠(ovules)。胚珠由一个珠心和包在珠心外面的一层或两层珠被所构成。
更新时间：2025-05-01 21:06

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