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Journal of Applied Sciences
Year: 2019  |  Volume: 19  |  Issue: 8  |  Page No.: 811 - 817

Physiological Response of Two Wheat Cultivars Grown under Sandy Soil Conditions to Aspartic Acid Application

Mohamed El-Sayed El-Awadi, Mervat Shamon Sadak, Kowther Gad Ali El-Rorkiek and Mona Gergis Dawood    

Abstract: Background and Objective: Wheat is one of the most important cereal crops grown in the world. The main amino acids synthesized by plants are glutamic acid and aspartic acid and from these two amino acids, the other amino acid may be formed. This study aimed to investigate the physiological role of aspartic acid in improving quality and productivity of two wheat cultivars grown under sandy soil conditions. Materials and Methods: A field experiment was carried out at the experimental Station of National Research Centre, Nubaria district, El-Behrea Governorate-Egypt, during two winter seasons of 2016/2017 and 2017/2018. Wheat grains cultivars (Benisuif 4 and Sohag 3) were obtained from Agricultural Research Centre Giza, Egypt. The experimental design was complete randomized block design with four replications. Foliar application of aspartic acid (0, 50, 75 and 100 mg L1) was carried out twice, plants were sprayed after 45 and 60 days from sowing. Results: It was noted that Benisuif 4 cv. was characterized by higher significant growth parameters, photosynthetic pigments, grains, straw and biological yield than Sohag 3 cv. when grown under sandy soil conditions. Aspartic acid treatments (50, 75 and 100 mg L1) caused marked significant increases in all growth parameters under investigation, photosynthetic pigments, yield and yield components, quality of the yielded grains (carbohydrate, protein, N, P, K contents) in both wheat cultivars. It is worthy to mention that 75 mg L1 was the most pronounced treatment in increasing quality and productivity of two wheat cultivars grown under sandy soil conditions. Conclusion: It was concluded that aspartic acid treatments (50, 75 and 100 mg L1) increased quality and quantity of two wheat cultivars grown under sandy soil conditions, especially 75 mg L1 was the most pronounced treatment.

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