Kirkuk University Journal for Agricultural Sciences (KUJAS)

Response of growth and yield of potato plants grown in desert areas to spraying with proline acid and chelated iron

https://doi.org/10.58928/ku25.16221
Volume 16, Issue 2 - Issue Serial Number 2
Spring 2025
Page 169-175
Kirkuk University Journal for Agricultural Sciences (KUJAS)

Document Type : Research Paper

Authors

Omar A Ibrahem 1
Abdulla A Abdulla 2
Yelderem AKHOUNDNEJAD 3
Lubna A Almaliki 4

1 Agriculture, University of Basrah, Iraq

2 University of Basrah- College of Agriculture- Department of Horticulture and Landscape Design

3 Department of Horticulture, Faculty of Agriculture, Sirnak University, Şırnak, Türkiye

4 Directorate of Agriculture of Basrah

Abstract
The experiment was conducted during the fall season of the 2023-2024 agricultural season in the tomato cultivation
project using modern technologies affiliated to the Basrah Agriculture Directorate in Khor Al-Zubair. With the aim of
studying the effect of foliar spraying with proline acid and chelated iron at three concentrations of each (0, 100, 200) mg
L-1 and the interaction between them on the growth and yield of potato plants of the Prowin variety. The results showed a
significant superiority of spraying with proline acid at a concentration of 200 mg L-1 in plant height, number of aerial
stems, number of leaves, leaf area, number of tubers, marketable yield, total yield, percentage of dry matter, starch and
specific gravity of tubers. Plants sprayed with chelated iron at a concentration of 200 ml L-1 gave a significant superiority
in number of aerial stems, number of leaves, leaf area, marketable yield and total yield. The interaction between the two
study factors showed a significant effect on all studied traits except for the percentage of total soluble solids. Plants sprayed
with proline acid and chelated iron at a concentration of 200 ml L-1 each gave the best values for marketable yield and the
total yield reached (22.25, 24.75) tons/ha with an increase rate of (91.15, 92.29) % compared to unsprayed plants,
respectively.

Keywords

Potato plants
proline
chelated iron
growth and yield
desert areas
late fall crop
Subjects
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