التوصيف المظهري و المؤشرات الحيوية لسلالات بذرية من أفحل نخيل التمر Phoenix dactylifera L.

الملخص EN

This study was conducted during the growth season 2018 in one of the palm farms in Abu al-Khaseeb, Basrah, Iraq.

The study compared the morphological and bioactivity characteristics of the ten strains male pollens of date palm phoenix dactylifera L.

with male date palm cultivar Al-Ghannami Al-Akhdar cv.

Significant differences were revealed among parameters of male cultivars.

The strain No.

8 recorded the highest values of the trunk circumference, the length of the ringworm, the number of pinnaes, the width of the pinnaes, number of thorns on the ringworm and the length of the stalk peduncle, While The strain No.

1 recorded the highest values of the width and weight of the flower cluster, as well as the number of spadix, Further the strain No.3 showed the highest values of spadix weight, pollen weight and percentage of germination.

On the other hand, The strain No.

2 recorded the lowest values of the length of the ringworm, the number of pinnaes, the width of the pinnaes, number of thorns on the ringworm, the length of the stalk peduncle, spadix weight, pollen weight.

With regard to the bioactivity characteristics of the pollen, the strain No.

6 recorded the highest bioactivity rate while the strain No.

8 recorded the lowest bioactivity rate, In addition, the strain No.

3 recorded the highest germination percentage of pollens whereas the strain No.

10 recorded 3 the lowest germination percentage of pollens.

The flower cluster appearance differed significantly among all strains.

The strain No.

1 was the first appearance compared with other strains and (Al-Ghannami AlAkhdar cv.).

, while the strain No.

9 recorded the last appearance flower cluster compared with other strains and (Al-Ghannami Al-Akhdar cv.).