常見例句雙語例句The suspensor is developed fully at the stage of globular embryo and consists of 3 cells, which are degenerated later.胚柄在球形胚時期最發(fā)達，但胚柄短小，只由3個扁平細胞組成，之后逐漸退化。In the period of globular embryo, the content of starch rises up again , which shows the accumulation of starch exceeds its consumption.球形胚時期，淀粉含量再次升高，表明此階段淀粉積累多于消耗。Embryo was formed utonomously in the unfertilized ovules. Globular embryo, two polar nuclei and antipodal cell mass could be observed n the embryo sacduring 1 to 2 days before and after anthesis.在開花前或開花后1～2天的胚囊中可發(fā)現(xiàn)球形胚、游離的二個極核和反足細胞團。 返回 globular embryo