pollination drop造句

例句与造句

1. The size of the pollen grains supports the idea that they were wind-pollinated, and their bisaccate wings may have enabled embtry intothe seed by a pollination drop mechanism.
2. In gymnosperms ( e . g ., conifers ), the pollen is drawn into the ovule on a drop of fluid that exudes out of the micropyle, the so-called pollination drop mechanism.
3. When a pollen grain lands close enough to the tip of an ovule, it is drawn in through the micropyle ( a pore in the integuments covering the tip of the ovule ) often by means of a drop of liquid known as a pollination drop.
4. The fungal inoculum infects the growing cones of " W . mirabilis " early during their development, and a sharp increase in infection occurs coincident with the appearance of the pollination drops, through which the fungal spores may gain access to the interior of the developing seed.
5. It's difficult to find pollination drop in a sentence. 用pollination drop造句挺难的