Effect of planting dates and morphological characters on the resistance of maize to the large corn stalk borer (Sesamia cretica)

Nadine Asaad1*, Reem Ali1, Ghassan Naaseh1, Rehab Hamdan1, Abo Al alaa Zarka1, Dema Darwish1, Amal abo Khroob1, Hadi Naser alaah1,  and Reem Mansour1

1 Lattakia Research Center, General Commission for Scientific Agricultural Research (GCSAR), Syria.

(*Corresponding author: Nadine Asaad, Email: Nadineasaad20@gmail.com)

Received: 27/ 2/ 2025      Accepted: 6/ 7/ 2025

Abstract 

The research was carried out at the Lattakia Research Center (Sianow) of General commission for Scientific Agricultural Research at Lattakia. during two growing seasons 2021-2022, to study. The effect of four planting dates (1April – 15 April – 1 May – 15May) on yield traits and related traits to borer of sweet corn (Faihaa 1). the experiment was designed according to the Completely Randomized Design (C. R.D) with three replications. The results of the statistical analysis showed that the second date was significantly to the rest of the dates in terms of early maturity and yield traits such as  ear length  and 100 kernel weight, with an increase percentage of (2.85%, 2.81%) respectively, on the rest of the  planting dates. The second date also excelled in traits related to resistance borer, such as stem diameter and the length of the internode basal ring (LIBR), with an increase rate of (0.61%, 0.31%) respectively, over the rest of the dates. It also had the lowest percentage of the percentage of dead hearts, intensity of damage and the percentage of lost at this the planting date, while there were no significant differences between the four dates, in number of holes, and the results showed that the second date (April 15) significant in the productivity traits and escape from infection by maize stalk borer Sesamia cretica, of sweet corn (Faihaa 1), in the Syrian coast’ conditions. The result of the correlation coefficient showed that there is significant positive relationship between grain yield and some yield components while foe the traits which related to borer, there is significant an inverse correlation between the grain yield t and LIBR. There is significant positive relationship between, grain yield and diameter stalk.

Keywords: sesame, triple superphosphate, zinc sulfate, protein, oil.

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