Razan khoury*(1), Bolus Khoury (1) and Mahmoud Alio(2)
(1). Crop Department, Agriculture Faculty, Tishreen University, Lattakia, Syria.
(2) Agricultural economics Department, Agriculture Faculty, Tishreen University, Lattakia, Syria.
(*Corresponding author: Razan Khoury, E-Mail: razankhoury5@hotmail.com).
Received: 24/03/2021 Accepted: 14/07/2021
Abstract
The research was carried out during the summer session of 2018/2019 at the countryside of Lattakia governorate to assess the performance of four commercial varieties of sweet yellow corn in terms of their resilience with the cultivation conditions in the Syrian coast regarding the most important economic and agricultural traits to suggest the best ones for cultivation. The averages of many traits (Days to silking, plant height, ear height, ear diameter, number of rows per ear, number of kernel per row, grain starch content and ear yield per plot) and many statistical indicators that are useful in determining the differences between the tested varieties were estimated, and the statistical analysis of the averages was performed by the method of analyzing the components of variance A.N.O.V.A., and the significant differences between the varieties and compared to the grand mean were determined on the by using Duncan’s Test.The results analysis of variance showed the availability of significant differences between the varieties, and the results were supported by the results correlation and regression analysis, as the results showed the superiority of the Casper variety compared to the grand mean in the traits (Ear yield per plot, plant height, ear height and ear diameter) which their values reached (752.93) g/plant, (230.16) cm, (120.24) cm, (4.66) cm respectively. Maybe cultivated for several years and make sure of its adaptation to the climatic conditions of Syrian coast, to approve the results.The highest positive and significant signs of correlation were recorded between ear yield per plot on the one hand, and each plant height, number of kernel per row and days of silking which were (0.93, 0.91, 0.90) respectively. The regression analysis supported this result as the percentage of ear yield per plot was (86%, 82% and 81%) respectively.
Keywords: sweet yellow corn, Ear yield per plot and their components, variance, correlation, regression.
Full paper in Arabic: pdf