Enhancing Growth, Yield, and Antioxidant Activity of Bitter Gourd (Momordica charantia L.) through Amino Acid Foliar Spray Application

Author:

El-Khayat Lamiaa1,Elbagory Mohssen2ORCID,Elsadek Mohamed34ORCID,Ahmed Nevin5,Mohamed Ibrahim6,Omara Alaa El-Dein7ORCID,Salim Nesrein8

Affiliation:

1. Horticulture Department, Faculty of Agriculture, Benha University, Moshtohor, Toukh 13736, Egypt

2. Department of Biology, Faculty of Science and Arts, King Khalid University, Mohail 61321, Assir, Saudi Arabia

3. Department of Landscape Architecture, College of Architecture and Urban Planning, Tongji University, Shanghai 200092, China

4. Department of Horticulture, Faculty of Agriculture, Suez Canal University, Ismailia 41522, Egypt

5. Department of Plant Protection, Faculty of Agriculture, Benha University, Moshtohor, Toukh 13736, Egypt

6. Department of Soil and Water Sciences, Faculty of Agriculture, Benha University, Moshtohor, Toukh 13736, Egypt

7. Agricultural Research Center, Department of Microbiology, Soils, Water and Environment Research Institute, Giza 12112, Egypt

8. Department of Biochemistry, Faculty of Agriculture, Benha University, Moshtohor, Toukh 13736, Egypt

Abstract

Bitter gourd has picked up noteworthy consideration for its pharmacological benefits. However, the impact of amino acids (AAs) dosage on growth, yield, and antioxidants is uncertain. In this study, we investigated the effects of foliar spraying bitter gourd with 100, 200, and 300 mg/L dosages of tryptophan (Trp), glutamine (Gln), and phenylalanine (Phe). The results revealed that Trp, at a dosage of 300 mg/L, produced the most substantial increase in plant length, followed by 300 mg/L Phe. Additionally, the highest values of the fresh dry weight of the plants, fresh weight of the first fruit, fruit number per plant, fresh weight of the fruits per plant, and total fruit output per hectare were seen at 300 mg/L of Trp, followed by 300 mg/L of Gln. Phe at 300 mg/L yielded the highest levels of total phenolics and total flavonoids, coupled with strong scavenging activity against 2,2-diphenyl-1-picrylhydrazyl. These outcomes show the potential of Trp and Gln foliar sprays to enhance bitter gourd growth, yield, and certain antioxidant compounds. These findings carry substantial implications for the enhancement of bitter gourd cultivation and quality. By revealing AA’s potential for improving bitter gourd, our research contributes to bolstering the agricultural sustainability of this remarkable crop.

Funder

King Khalid University

Publisher

MDPI AG

Subject

Horticulture,Plant Science

Reference57 articles.

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5. Source and sink mechanisms of nitrogen transport and use;Tegeder;New Phytol.,2018

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