Effect of Tryptophan and Ascorbic Acid on Yield and Some Chemical Constituents of Lupine ( Lupines termis L.) Plants
Khalifa, Y., Abd El-Naem, G., Mahmoud, M. (2020). Effect of Tryptophan and Ascorbic Acid on Yield and Some Chemical Constituents of Lupine ( Lupines termis L.) Plants. EKB Journal Management System, 42(1), 47-61. doi: 10.21608/agro.2020.18986.1189
Yasser A. M. Khalifa; Gamal F. Abd El-Naem; Mohamed A. Mahmoud. "Effect of Tryptophan and Ascorbic Acid on Yield and Some Chemical Constituents of Lupine ( Lupines termis L.) Plants". EKB Journal Management System, 42, 1, 2020, 47-61. doi: 10.21608/agro.2020.18986.1189
Khalifa, Y., Abd El-Naem, G., Mahmoud, M. (2020). 'Effect of Tryptophan and Ascorbic Acid on Yield and Some Chemical Constituents of Lupine ( Lupines termis L.) Plants', EKB Journal Management System, 42(1), pp. 47-61. doi: 10.21608/agro.2020.18986.1189
Khalifa, Y., Abd El-Naem, G., Mahmoud, M. Effect of Tryptophan and Ascorbic Acid on Yield and Some Chemical Constituents of Lupine ( Lupines termis L.) Plants. EKB Journal Management System, 2020; 42(1): 47-61. doi: 10.21608/agro.2020.18986.1189

Effect of Tryptophan and Ascorbic Acid on Yield and Some Chemical Constituents of Lupine ( Lupines termis L.) Plants

Egyptian Journal of Agronomy
Article 4, Volume 42, Issue 1, April 2020, Page 47-61  XML PDF (1.82 MB)
Document Type: Original Article
DOI: 10.21608/agro.2020.18986.1189
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Authors
Yasser A. M. Khalifa email orcid 1; Gamal F. Abd El-Naem2; Mohamed A. Mahmoud3
1Agronomy Department Faculty of Agriculture Alzhar University Assiut Branch, Assiut, Egypt
2Agriculture Chemistry Department, Faculty of Agriculture, Minia University, Minia, Egypt
3Agriculture Chemistry Department, Faculty of Agriculture, Al Azahr University, Assuit Branch, Assiut, Egypt
Abstract
A field experiment was carried out during seasons 2017/2018 and 2018/2019 seasons to study the effects of spraying Tryptophan and Ascorbic acid on yield components and chemical composition of plants . using two cultivars Giza-1 and Giza-2 of lupine plants. Foliar spray of Tryptophan at rate (Trp. : 25 and 50 mg /L) Ascorbic acid (A A: 100 and 200 mg /L)either alone, or their combination and control. The effect of the previous treatments on some vegetative growth criteria namely{ plant height (cm), pod length (cm), number of branches/ plant, weight of 100 seeds, and seed yield / plant(g) and seed yield / fed(ton) } wear investigated as well as chemical composition such as, total nitrogen, crude protein (CP),total soluble sugars (TSS), crude lipids (CL), total alkaloids (TAs), and total phenolic compounds (TPCs).
Results indicated that foliar application Tryptophan and Ascorbic acid significantly improve yield and chemical composition. Trp. was more effective than A. A. in raising lupine yield, significantly increased yield of lupine plants, plant height (cm), pod length (cm), number of branches/ plant, weight of 100 seeds and seed yield/ plant(g) and seed yield / fed(ton).
Total nitrogen, crude protein (CP),total soluble sugars (TSS), crude lipids (CL), total alkaloid (TAs), and total phenolic compounds (TPCs). in seeds lupine were significantly enhancement by mounting Trp. from 25to 50 mg /L and/or A.A. concentrations up to 100 and 200 mg/L.
Keywords
Ascorbic acid; Chemical composition; Lupinus termis L; Tryptophan
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