A study was conducted to assess the growth indicators of mangroves Avicennia marina cultivated in the intertidal zone at the Khor Al-Zubair oil port site for the period from May 2020 to May 2021. The study showed high growth indicators. Recorded the highest averages indicators to the total height of the plant and the number of lateral branches were 113.4 cm and 30.4 branches. Plant-1 after 12 months from the date of planting in the site, while the highest average to indicators of the total number of leaves in the plant, the total leaf area, and the total leaf content of chlorophyll reached 176 leaves.plant-1, 3511 cm2.plant-1, and 52.7 μg.cm-2 were after 9 months of cultivation in the field, respectively. While the plants achieved survival rates of 78% at the end of the experiment. The results were compared according to the Least Significant Difference (L.S.D.) test at a probability level of 0.05.
The study aimed to examine the ability of propagation of water hyssop Bacopa monnieri L. in vitro. To induce callus, two auxin , NAA and 2,4-D are used. They showed the highest percentage of 93% callus induction when 1.5 mg .l -1 was used for both. The induced callus was distinguished by its white compact color containing a lot of nodes. After that another treatment with 3 mg . l -1 2,4-D was conducted to score 85% , the callus was compact yellow. The treatment by 3 mg/l -1 NAA scored 53%. The callus was yellow and soft, where as the callus was not induced by hormones free treatment. The effect of cytokines on the formation of vegetative buds was also examined in this study. The results showed that the interaction between treatment by (0.5 mg .l -1) of BA and (0.5 mg.l -1) KN was significantly increased in the number of the vegetative buds; the number was 40 vegetative buds. Then another treatment followed (0.5 mg . l -1) BA, the interaction of (0.5 mg.l -1) BA, KN and NAA and (0.5 mg. l -1) of KN to form (14.7, 10.3, 10.0) vegetative buds respectively. The control treatment scored 2.5 vegetative buds to show a significant increase in the length of the vegetative buds (15.33 cm) followed by the treatment of the interaction between (0.5 mg .l -1) BA and KN to score (13.00 cm) and the treatment of (0.5 mg.l -1) BA , (8.33 cm). The interaction between (0.5 mg. l-1) of BA, KN and NAA, (6.67 cm). The length of the vegetative buds was (4.67 cm) in the treatment by (0.5 mg.l -1) KN. The plants were acclimatized then transformed into the water field successfully.
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