Abdel Qader Gomaa(1)*, Hossam El-Din Khalasi(1) and Muhammad Nael Khattab(1)
(1). Crops Department, Faculty of Agriculture, Tishreen University, Syria.
(* Corresponding author: Abdel Qader Gomaa, E-mail aboalabd876@gmail.com).
Received: 15/02/2024 Accepted: 1/08/2024
Abstract
The research was carried out at Deir Hafer , Aleppo Governorate during the 2023 agricultural season, by planting three genotypes of Zea mays L. (Ghouta 1, Ghouta 82, and Basil 1) obtained General Commission for Scientific Agricultural Research, and treating them with spraying with different concentrations of the amino acid proline (0). 50, 100 and 150 mg/L and irrigation at a level of (50-100%) of field capacity according to a randomized complete block design (RCBD) and with three replicates, with the aim of studying the effect of irrigation and spraying with proline and their interactions on some morphological and productive traits of hhese genotypes and determining the appropriate concentration of proline acid to reduce the effect of water stress to achieve the best productivity of Zea mays plants. The results showed that the concentration of 100 mg/L of the amino acid proline was superior compared to other concentrations used, and the irrigation treatment at a level of 100% compared to irrigation at a level of 50% of the field capacity in most of the traits studied. The response of the yellow maize crop of the three studied genotypes to spraying with high concentrations of proline (100%) and irrigation at 100% of field capacity.
Keywords: Zea mays, proline, field capacity, water stress.
Full paper in Arabic: PDF