dichogamy

di·chog·a·mous

D0204600 (dī-kŏg′ə-məs)adj. Having pistils and stamens that mature at different times, thus promoting cross-pollination rather than self-pollination.

di·chog′a·my (-mē) n.

dichogamy

(daɪˈkɒɡəmɪ) n (Botany) the maturation of male and female parts of a flower at different times, preventing automatic self-pollination. Compare homogamy² diˈchogamous, dichogamic adj

dichogamy

the condition, in some flowering plants, in which the pistils and stamens mature at different times, thus preventing self-pollination. — dichogamous, adj.See also: Flowers, Plants

Translations

дихогамия

Dichogamy

enUK

dichogamy

[dī′käg·ə·mē] (biology) Producing mature male and female reproductive structures at different times.

Dichogamy

the maturation of the anthers and stigmas of flowers at different times. The importance of dichogamy for cross-pollination was first noted by A. T. Bolotov in 1780. In some flowers the anthers are the first to mature (protandry), and in others it is the stigma (protogyny). Dichogamy occurs not only in bisexual flowers but also in the unisexual flowers of monoecious and dioecious plants. Dichogamy is termed complete if the stigmas mature after the wilting of the stamens (or vice versa). More often dichogamy is incomplete, that is, the later maturing organs attain sexual maturity while the organs of the opposite sex have not lost their function. Protandry occurs in almost all the plants of the families Compositae and Umbelliferae. Protogyny is encountered more rarely, for example, in plants of the families Cruciferae, Rosaceae, and Ranunculaceae (anemones). The maturation of organs of different sexes at different times in cryptogams is also termed dichogamy.

单词	dichogamy
释义	dichogamy enUK di·chog·a·mous D0204600 (dī-kŏg′ə-məs)adj. Having pistils and stamens that mature at different times, thus promoting cross-pollination rather than self-pollination. di·chog′a·my (-mē) n. dichogamy (daɪˈkɒɡəmɪ) n (Botany) the maturation of male and female parts of a flower at different times, preventing automatic self-pollination. Compare homogamy² diˈchogamous, dichogamic adj dichogamy the condition, in some flowering plants, in which the pistils and stamens mature at different times, thus preventing self-pollination. — dichogamous, adj.See also: Flowers, Plants Translations дихогамия Dichogamy enUK dichogamy [dī′käg·ə·mē] (biology) Producing mature male and female reproductive structures at different times. Dichogamy the maturation of the anthers and stigmas of flowers at different times. The importance of dichogamy for cross-pollination was first noted by A. T. Bolotov in 1780. In some flowers the anthers are the first to mature (protandry), and in others it is the stigma (protogyny). Dichogamy occurs not only in bisexual flowers but also in the unisexual flowers of monoecious and dioecious plants. Dichogamy is termed complete if the stigmas mature after the wilting of the stamens (or vice versa). More often dichogamy is incomplete, that is, the later maturing organs attain sexual maturity while the organs of the opposite sex have not lost their function. Protandry occurs in almost all the plants of the families Compositae and Umbelliferae. Protogyny is encountered more rarely, for example, in plants of the families Cruciferae, Rosaceae, and Ranunculaceae (anemones). The maturation of organs of different sexes at different times in cryptogams is also termed dichogamy. dichogamy enUK dichogamy the maturation of anthers and ovules in a flower at different times.
随便看	pleasured pleasure doing business pleasureful pleasure ground pleasure in little things pleasure in other's misfortune pleasure island pleasure island parrot heads pleasure island volleyball club pleasureless pleasure-loving pleasure, max a pleasure, max a. pleasure nub pleasure-pain principle pleasure pearls pleasure principle pleasure principle (psychology) pleasure principles pleasurer pleasure ridge park pleasure ridge park, louisville pleasures pleasure saddle horse registry pleasure seeker