| 1. | It seems that pollination also involves certain chance factors . 似乎传粉还包含有某种偶然因素。 |
| 2. | Early archegonial development is already evident two weeks after pollination . 颈卵器的早期发育在授粉后两周内就业已明显。 |
| 3. | Pollination is the mechanical transfer of pollen from the anthers to the sti gmas . 授粉是机械地把花药里的花粉传送到柱头上去。 |
| 4. | Use of controlled pollination is generally confined to various types of research . 控制授粉的应用,一般只限于干不同的研究工作。 |
| 5. | They damage female strobili during the interval between pollination and fertilization . 在传粉与受精的间隔期间,他们毁坏了雌球花。 |
| 6. | The difference should be discernible in the time of flowering and pollination in orchards . 在种子园的开花和传粉时,可以看出这一差异。 |
| 7. | It is obvious that the amount of background pollination will reflect the size of any local source . 显然外来传粉的数量可以反映当地花粉源的大小。 |
| 8. | Clearing a surround to the orchard, will significantly reduce background pollination to very low levels . 在种子园周围只要清除出一条隔离带,便可显著地使外来传粉减到最低水平。 |
| 9. | The position of female inflorescences of trees in peripheral parts of the crown may also augment the probability of pollination . 乔木的雌花花序在树冠外层的位置也能增加授粉的机会。 |
| 10. | Advances in flower and pollination biology in fruit trees 果树开花授粉生物学研究进展 |