Ahmed Yousef Lafta Hzaa
@uobasrah.edu.iq
Agriculture collage- Horticulture and landscape
University of Basrah
RESEARCH, TEACHING, or OTHER INTERESTS
Agricultural and Biological Sciences, Biotechnology, Horticulture, Molecular Biology
Scopus Publications
Scholar Citations
Scholar h-index
Scopus Publications
Abdul Samad A. Abdullah, Hassan A. Faisal, and Ahmed Y. L. Hzaa
Journal of Global Innovations in Agricultural and Social Sciences (JGIASS)
This study was conducted at one of the orchards in the Abi Al-Khasib region of Basrah Governorate during the 2022 growing season to determine the extent of the response of the date palm Hillawi cultivar to spray with amino acids (Glycine, Arginine, and Tryptophan) concentrations of 1000, 1500, and 2000 mg. L-1 per acid, to determine the effect of these acids on some vegetative and fruitful growth characteristics. Showed results of the study showed significant superiority of s amino acid glycine at a concentration of 2000 mg. L-1 in leaf length, leaf width, number of new leaves, chlorophyll, carbohydrates, length and weight of fruit, weight of fleshy part of the fruit weight bunch and reducing sugars. (4.627m, 5.477cm, 17.67, 12.240 mg.100g-1, 49.37 mg.g-1, 3.870cm, 6.057g, 4.817g, 6.823kg, 50.76%) respectively compared with control. Arginine concentration 2000 mg. L-1 significantly in total protein of leaves, and total sugar and soluble solids of fruits. (4.933 mg.g-1, 60.90%, 70.42%) respectively. A tryptophan concentration of 2000 mg. L-1 was significant to fruit size (6.590 cm3). A tryptophan concentration of 1000 mg l was significant to sucrose on fruits (11.260%). Amino acid supplements have a significant impact on plant development and production. Combining different amino acids yields better quality and quantity of fruit. Keywords: Amino acids, vegetative characteristics, fruit characteristics, chemical characteristics, bunch weight.
Ahmed Yousef Lafta Hzaa, Israa Malallah Alkanan, and Mohammad Radhi Sahib
Clinical Biotec
Ziziphus spp. is one of the economic fruit trees whose cultivation spreads in southern Iraq. This study characterized the morphological, molecular, and genetic diversity of five cultivars (Malasy, Normal, Zaytony, Bambawi, Tofahy), using 12 morphological indicators for leaf and fruit and six primers for RAPD technology. The results of the morphological characterization showed that the two cultivars (Normal and Malasy) recorded the highest genetic kinship between them, amounting to 10.04. In comparison, the farthest genetic distance between the two cultivars (Zaytony and Normal) was recorded, which amounted to 29.3. As for the molecular characterization results, the primers produced 113 20 bands, with an average of 18.8 bands for each primer, and the percentage of polymorphism was 100% and unique bands totaling 51 bands appeared, including 17 bands with different molecular weights characteristic of the cultivars. The genetic tree diagram showed the distribution of cultivars in two groups. The combination of morphological and molecular characterization is one of the most important tools that can be relied upon in finding genetic differences and determining fingerprints, especially between types of genders or cultivars of the same species. Keywords: fingerprints, genetic distance, Morphological, RAPD, Ziziphus.
Hussein J. Shareef, Ahmed Y. L. Hzaa, and Nabil I. Elsheery
Walter de Gruyter GmbH
Abstract Salty sandy soil usually hinders plant growth, while spraying nano-fertilizers such as iron and zinc enhances plant growth. This experiment investigated the role of iron and zinc nano-fertilizers (1 g l–1) in the adaptation of date palm seedlings (cv. Barhee) subjected to salt stress (0, 75, 150 mM NaCl). Nano-fertilizer increased plant height, length of roots, number of leaves, and roots. In contrast, salt stress led to reducing these parameters. Salt stress increased hydrogen peroxide, electrolyte leakage, malondialdehyde, and antioxidants such as soluble proteins, proline, catalase, ascorbate peroxidase, and peroxidase enzyme in the leaves. Abscisic acid also increased. Nano-fertilizers increased the chlorophyll and dry matter of the plant under salt stress. Nano-iron induced better seedling growth than nano-zinc, especially in the length of the roots. Nano-iron under salt stress increased iron and potassium concentration and K/Na ratio in leaves. Nano-fertilizers help the plant adapt to environmental stresses, and seedlings succeed in growing in saline sandy soils.
Murtadha Shanan Auda and Ahmed Yousef Lafta Hzaa
Clinical Biotec
This study was conducted in an orchard in Basra Governorate during the 2020 growing season, with the aim of the effect of spraying the antioxidants acetylsalicylic acid and citric acid on some physical and chemical characteristics of two date palm cultivars Phoenix dactylifera L. (Halawi and Sayer) in improving the chemical and physical properties of the fruits. The experiment included five-factor treatments, which are the comparison treatment and two concentrations of citric acid 150, 300 mg.L-1 and two concentrations of acetylsalicylic acid 500 and 1000 mg.L-1, the floral spikes were sprayed twice, the first spraying a month after pollination and the second spray 15 days after the first spray. The results demonstrated that spraying with two acids led to a significant increase in all studied traits, sprayed with salicylic acetylcholine at a concentration of 1000 mg. mg.L-1 and spraying with citric acid 300 mg. mg.L-1 significant increase in yield, while spraying with distilled water gave the lowest value for the studied traits, the binary interaction between acetylsalicylic acid at a concentration of 1000 mg.L-1 and Halawi cultivar significantly outperformed in all the traits included in the study. Keywords: Acetyl, citric acid, date palm, Halawi, Sayer.