Mohammed Nael Khattab^*(1) Majd Darwish⁽¹⁾ and Alaa Merhej⁽¹⁾

(1). Crops Field Department, Faculty of Agriculture, Tishreen University, Latakia, Syria.

(*Corresponding author: Dr. Mohammed Nael Khattab. E-Mail: blackdream.m1991@gmail.com).

Received: 06/12/2018                                Accepted: 17/01/2019

Abstract

The research was carried out in the coastal region (Beit Yashout village of Jibla district) and in the laboratories of the Faculty of Agriculture, Tishreen University during 2018 season to estimate the individual plants of a local population of Zea maize L. (Gouta 82) for the most important phenological, morphological, physiological and production characteristics under irrigation with saline water and different stages of growth. The selected plants, which were salt tolerance and had high yield will be introduced in subsequent breeding studies. All of the genotypes were divided into 7 treatments: (T1) was irrigated with normal water (control), saline stress was measured at 6 mL / cm³  concentration at the stages of seedling (T2), 6 leaf (T3), seedling and 6 leaf (T4), and saline stress was measured at 12 mL/cm³ at the stages of seedling (T5),  6 leaf (T6), seedling and 6 leaf (T7), (12 were conducted during the research season taking into account the specificity of quantity and content of each irrigation(. The salinity resulted in a decrease in the values of some traits such as the number of grains per ear, number of rows ear, ear length, weight of grains per ear and ear weight in all the treatments, and more decrease was noticed at the concentration of 12 millimes compared to the concentration of 6 millimes, especially in the treatments (T4), (T6) and T7. The values of diameter and length of the plant, especially in the treatments (5T), (T6) and (T7), the number of days until maturity, the concentration of proline in the irrigation treatment (T3), and the leaf area index in the treatment (T7) and (T4(. Salinity also increased values of some traits such as the number of rows under salinity in (T2), (T3) and (T5), and the leaf area index in the treatment (T3), (T5) and (T6(, days to maturity, and proline concentration in treatments (5T), (T6) and (T7), and the diameter of the spike (T2 and T3) and plant length in the treatment (T2). Some selected plants from Goata82 were distinguished by their various parameters (superior plants) of the number of days until maturity (plant number 37) (119 days), plant length (plant number 42) (275 cm), leaf area index (plant number 21) (6.71), ear length (plant number 13) (18cm), ear diameter (plant number 10) (5.41cm), number of rows per ear (plant number 46) (20 row), number of kernel per ear (plant number 9) (469), ear grain weight (plant number 16) (185g) and ear weight (plant number 16) (260g).

Key words: (Zea mays L.), Saline stress, Gouta82, Individual selection.

Full Paper in Arabic: PDF