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The Tolerance of Maize (Zea mays L.) to Dry Season Conditions in Iraq

Upper Euphrates Basin Developing Center (UEBDC), University of Anbar, 31001, Anbar, Iraq
*(e-mail :; Mobile : +964 78221 51920)
(Received : April 5, 2022; Accepted : May 8, 2022)


During the spring of 2018, a field investigation was carried out at one of the private clay loam soil
fields in the Latifiya region (southern Baghdad, Iraq). The goal was to determine the effect of water
stretch (WS) and foliar application of salicylic corrosive on yield attributes of corn (Zea mays L.) plants
during the dry season. The randomized completely block design (RCBD) of three replications inside
the split-split plotting system was used. The main plots showed four different concentrations of
salicylic acid (SA : 0, 100, 200 and 300 mg/l). Three irrigation remedies (IQ) were used in the sub-plots
: One hundred % (full irrigation), 80% and 60% of accessible water. The salicylic acid (SA) and the
irrigation remedies (IQ) had proven a considerable impact on all traits. The (300 mg/l) level of SA
offered the absolute best average of chlorophyll and proline content material in leaves (CCL and PCL)
and yields as well. The interplay between SA and IQ showed great variations as the maximum green
yield was 8870.7 kg detected at D3 x I1. However, the lowermost rate of grain yield was 6346.4 kg in comparison with S0 x I3. The grain yield of 7714.0 kg existed in the D1 x I3 because it used 40% of available water to the cultivated area. Therefore, these findings suggested the opportunity of making corn vegetation (Zea mays L.) greater adaptable to drought conditions by the use of water stress and salicylic acid foliar application. Such tolerance led to limiting plant-water requirements without massive
consequences on the yield properties.
Key words : Salicylic acid, irrigation amount, chlorophyll, proline, production