تأثير السايتوكاينينات و الأوكسينات في نمو و تجذير الأفرع الخضرية لصنفي نخيل التمر Phoenix dactylifera L. الحلاوي و الأشقر خارج الجسم الحي

الملخص EN

The present study was undertaken at tissue culture laboratory, Date Palm Research Centre-Basrah University to determine the effect of Auxins and Cytokinens on the some characteristics of somatic shoots (growth, development and rooting) of date palm cv.

Hillawi and Ashkar.

Results showed that Benzyl amino purine superior significantly in the average number of vegetative branches of the Hillawi cultivar (4.

2) compared to Iso pentyle adenine and Kinetin, when 1 mg/L concentration superior significantly compared to other concentrations, which the number of branches was 6.

37.

The concentration of 1.

0 mg/L of growth regulator Iso pentyle adenine exceeded the other concentrations siginificantly in the mean number of vegetative branches and their lengths for Asker cultivar as it reached 3.

90 vegetative branches and 4.

25 cm respectively.

Also the results showed the increase in the average number of vegetative branches when using the growth regulator Iso pentyle adenine with a significant difference from the Kinetin, regardless of the concentration and cultivar, as it reached 3.

47 vegetative branches and there were no significant differences in the average length of vegetative branches among the growth regulators used, as the average length of vegetative branches reached 3.

15 and 3.

37 And 2.

98 cm, respectively.

In the comparison of cultivars, the Hillawi cultivar significantly superior on the Asker cultivar in the average number of vegetative branches, as it reached 3.

50 and 2.

90 vegetative branches respectively for the two cultivars, and there were no significant differences between the two cultivars in the average length of the branches.

The concentration 0.

75 mg / l of Naphthalene acetic acid showed significant difference than the other concentrations used except for the same concentration with Indole acetic acid in increasing the percentage of rooting of the vegetative branches of 80 and 90% for Hlillawi and Ashker cultivars respectively.