دراسة التطور الجنيني و أسباب فشل إنبات بذور نبات البمبر Cordia Myxa L.

الملخص EN

The present study was carried out during growing season, 2006 from ( 5 /3 - 25 /5 ) in a private orchard in Abe - A! -Khaseeb region - Basrah Govern.

It is anatomical study for the flowers and fruits of Cordia myxa L.

The results showed that the development of embryo started immediately after Pollination , one room formed in the ovary of flowers and in the medium of ovule , the ovary growing in some of flowers and not in the other, and the differences between them in style and volume was evident from the first week after Pollination .

Phenomenon (Tundary) was found in the flowers and they aborted through the development of embryo , this Phenomenon happened in tow stages ; the first stage of fadeaway occur in ( 6 -10 ) week after fruit set.

Disintegrate and fade away was happened gradually in the embryo sac, as well as the full concealed of embryo was happened in finally fade away stage and the fruit contain the seed only without embryo.

The second stage of fadeaway occur in the finally of seed growth (about 10 week after fruit set).

One of the tow seed stone was concealed , and this type of fade away appear to be a normal development of seed.

Some time the fade away take place in both of stone in the finally stage of seed development , and these seeds unable to germinate.