MILK THISTLE GROWTH, PRODUCTIVITY AND CHEMICAL CONSTITUENTS AS AFFECTED BY FOLIAR APPLICATION OF PHENYLALANINE AND TRYPTOPHAN
Abdel-Kareem, A., El-Shamy, H., Dawh, A., Gwiefel, S. (2017). MILK THISTLE GROWTH, PRODUCTIVITY AND CHEMICAL CONSTITUENTS AS AFFECTED BY FOLIAR APPLICATION OF PHENYLALANINE AND TRYPTOPHAN. EKB Journal Management System, 44(1), 117-127. doi: 10.21608/zjar.2017.53932
Asmaa A.A. Abdel-Kareem; H. A. El-Shamy; A. K. Dawh; S. G. Gwiefel. "MILK THISTLE GROWTH, PRODUCTIVITY AND CHEMICAL CONSTITUENTS AS AFFECTED BY FOLIAR APPLICATION OF PHENYLALANINE AND TRYPTOPHAN". EKB Journal Management System, 44, 1, 2017, 117-127. doi: 10.21608/zjar.2017.53932
Abdel-Kareem, A., El-Shamy, H., Dawh, A., Gwiefel, S. (2017). 'MILK THISTLE GROWTH, PRODUCTIVITY AND CHEMICAL CONSTITUENTS AS AFFECTED BY FOLIAR APPLICATION OF PHENYLALANINE AND TRYPTOPHAN', EKB Journal Management System, 44(1), pp. 117-127. doi: 10.21608/zjar.2017.53932
Abdel-Kareem, A., El-Shamy, H., Dawh, A., Gwiefel, S. MILK THISTLE GROWTH, PRODUCTIVITY AND CHEMICAL CONSTITUENTS AS AFFECTED BY FOLIAR APPLICATION OF PHENYLALANINE AND TRYPTOPHAN. EKB Journal Management System, 2017; 44(1): 117-127. doi: 10.21608/zjar.2017.53932

MILK THISTLE GROWTH, PRODUCTIVITY AND CHEMICAL CONSTITUENTS AS AFFECTED BY FOLIAR APPLICATION OF PHENYLALANINE AND TRYPTOPHAN

Zagazig Journal of Agricultural Research
Article 7, Volume 44, Issue 1, January 2017, Page 117-127  XML PDF (261.03 K)
Document Type: Original Article
DOI: 10.21608/zjar.2017.53932
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Authors
Asmaa A.A. Abdel-Kareem; H. A. El-Shamy email ; A. K. Dawh; S. G. Gwiefel
Hort. Dept., Fac. Agric., Zagazig Univ., Egypt
Abstract
The present work was done at the Experimental Farm of Faculty of Agriculture, ZagazigUniversity (Al-Khattara), Sharkia Governorate, Egypt during two consecutive seasons of 2012-2013 and 2013-2014. Different concentrations (0, 100, 200 or 300 mg/l) of L-phenylalanine or L-tryptophan each alone were foliar applied to milk thistle (Silybum marianum L.) plants to assess their effects on growth, productivity and chemical constituents. Obtained results demonstrated that the maximum values of plant growth characters (plant height, number of main branches, number of leaves /plant and herb fresh weight), yield components (number of fruits/plant, fruit weight, weight of 1000 seeds, seed weight/plant and seed yield/faddan) and chemical constituents (total nitrogen, phosphorus, potassium and total carbohydrates percentages in leaves as well as total phenolic compounds content of seeds) were recorded by spraying the plants with the highest concentration (300 mg/l) of each compound alone.
Keywords
Silybum marianum L; foliar application; phenylalanine and tryptophan
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