Vegetable Research Department, Agricultural and Biology Research Institute, National Research Centre (NRC), 33 El-Buhouth St., Dokki, Giza, 12622, Egypt.
Botany Department, Agricultural and Biology Research Institute, National Research Centre (NRC), 33 El-Buhouth St., Dokki, Giza, 12622, Egypt.
Sci Rep. 2024 Nov 4;14(1):26571. doi: 10.1038/s41598-024-76421-x.
Finding a way to establish a sustainable cultivation system to produce celery as an important source of human being nutrition system due to its health and nutritional advantages is increasing by the day. Amino acids have a deep impact on plant metabolism; they improve mineral uptake and increase shoots and root growth, yield, chlorophyll biosynthesis, and photosynthesis rate as well as encouraging stimulation of several enzymes and coenzymes which lead to improved plant development and production besides quality. A two-year (2021/2022-2022/2023), trial was conducted to discuss two essential amino acids Glycine (GLY) and Tryptophan (TRP) effect on celery's growth, production, photosynthetic pigments, vitamin (C), total phenols, total flavonoids, total antioxidant activity, total indoles, nutritional status, and amino acids contents. During the winter season, three levels of each amino acid (0, 50, and 75 mg/l) were sprayed in two doses after 30 days of cultivation and 15 days from the first foliar. Results showed that the best performance of amino acids on plants vegetative growth characteristics, photosynthetic pigments, biochemical constituents, yield, and amino acids content was conducted by using (GLY + TRP) mix followed by TRP then GLY, while the best level of foliar applied amino acids was 75 mg/l in concentration. The best results on celery's vegetative growth, yield, chemical content, and amino acid content were recorded by using the (GLY + TRP) mix at the highest level of 75 mg/l in concentration.
由于芹菜具有健康和营养优势，因此找到一种可持续的栽培系统来生产芹菜作为人类营养系统的重要来源的方法日益受到关注。氨基酸对植物代谢有深远的影响；它们可以改善矿物质的吸收，增加茎和根的生长、产量、叶绿素的生物合成和光合作用率，并刺激几种酶和辅酶的活性，从而促进植物的发育和生产，提高品质。进行了为期两年（2021/2022-2022/2023）的试验，以讨论两种必需氨基酸甘氨酸（GLY）和色氨酸（TRP）对芹菜生长、产量、光合色素、维生素（C）、总酚、总类黄酮、总抗氧化活性、总吲哚、营养状况和氨基酸含量的影响。在冬季，在种植后 30 天和第一次叶面处理后 15 天，以 30 天为一个周期，分两次喷施三种浓度（0、50 和 75mg/L）的每种氨基酸。结果表明，氨基酸对植物营养生长特性、光合作用色素、生化成分、产量和氨基酸含量的最佳表现是使用（GLY+TRP）混合液，其次是 TRP，然后是 GLY，而叶面喷施氨基酸的最佳浓度为 75mg/L。在浓度为 75mg/L 时，使用（GLY+TRP）混合液获得了芹菜营养生长、产量、化学物质含量和氨基酸含量的最佳结果。
