| Autor: |
Radhi, Ibrahim Mrodhi, Hussein, Khalid Ali, Hashim, Jasim Hanoon, Joda, Baker A, Aaber, Zeyad S, Abdulateff, Ahmed Mahmood, Madlool, Thaer Mahdi, Mohammed, Adnan Ibrahim, Nasir, Ibtisam Abbas |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2020, Vol. 2290 Issue 1, p1-5, 5p |
| Abstrakt: |
Acacia leprosa is difficult- to- root cuttings, Acacia cyanophylla L. is slightly hard-to-root cuttings in absence of supplied auxin. However, improvement of root ability of Acacia leprosa cuttings involved employment of four treatments (distilled water, IBA, Ascorbic acid (AsA) and (AsA in combination with IBA) and the results revealed the followings AsA alone is the best treatment that caused (induced) rooting and increased vegetative traits when supplied individually rather than in combination whit IBA of difficult-to- root cuttings (Acacia leprosa). AsA when supplied individually (alone) increased to 20.00 % of rooting percentage, average of roots number/ cutting (21.76), length (18.80 cm), branches number /cutting(4.93) and length (15.67 cm) in Acacia leprosa, compared to distilled water treatment that developed (0.00 %) for all traits (dead cuttings). In addition, IBA when supplied in combination with AsA, reduced rooting percentage into 0.00% in Acacia leprosa and 26.67 % in Acacia cyanophylla L. In contrast, with Acacia cyanophylla L, all treatments (except distilled water) that have been tested were stimulated rooting whether individually or in combination with IBA, at rate higher than Acacia leprosa. However, the maximum rooting percentage was found with AsA when supplied individually (66.67%). Furthermore, the discussion was focused on considering AsA as anti-oxidant by activating the electronic conjugation system and its role in AsA -GSH cycle. Collectively, AsA inducing rooting response by increasing IAA level via inhibiting IAA- oxidase or GH3 enzyme activity. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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