The ovule of tomato is anatropous.

番茄的胚珠倒生。

And where is the position of its ovule?

胚珠生于什么位置等。

Ovule primordia are formed in mid-March.

三月中旬，胚珠原体形成。

This phenomenon was probably correlated with ovule abortion.

这种现象可能与胚珠后期败育有关。

In the plant, bead appearance of ovule be been in becomes an envelope.

在植物，珠被在胚珠外形成一个封套。