Ziad Aleisa *(1) (2), Mohammad Nayef Alsalty(2), Moneer Alnabhan(3)and Ahmad Algomaa(1)
(1). General Commission for Scientific Agricultural Research, cotton research administration, Aleppo, Syria,
(2). Faculty of Agriculture, plant protection department, Aleppo university, Aleppo, Syria.
(3). General Commission for Scientific Agricultural Research, Hama center, Hama, Syria.
(*Corresponding author: Ziad Aleisa. E-mail: ziadissa989@gmail.com).
Received9/04/2022 Accepted: 22/06/2022
Abstract:
The effects of coating cotton’s seeds by suspension of many isolates of useful microorganisms by two ways of seeds coating(chemical shaved / unshaved) on growth measurement of cotton variety Aleppo118 had been studied, and development and density of whiteflies and cotton bollworms on cotton threw field experiment in Hemimah agricultural research station/Aleppo research center on 2019 season with three replicate for each treatment and the control, three isolates of Trichoderma harizianum (Twood, T.L.C, T950 ), tow isolates of Beauveria bassiana (GHA, K), two isolats of Bacillus subtilis (B.s, B.bacteria), isolate of Lecanicellium lecani(B), isolate of Aspergillus sp.(Asp) were used . Useful microorganisms were propagated then seeds coating operation were achieved. Seeds were planted on 15/5/2019, Many measurements have been taken like germination, productivity, density of whiteflies and cotton bollworm injury rates, and electrical conductivity of soil, organic matter, (NPK and Fe) available in soil. The results showed that no significant differences in germination, number of bolls, furrow productivity between treatments and control, whereas the strain treatments had a low densities of whiteflies’ nymphs /leaf (23.03-27.34 comparing with control 54.76), and coating with isolate GHA and B reduce from cotton bollworms rate (40.23 and 40% comparing with control 54.76%), and enhance availability of nutritious minerals studied, from the results have been noticed that coating cotton seed with useful microorganism enhanced cotton plant resistance toward whiteflies and cotton bollworm, improve its productivity, supporting integrated pest management programs for cottons’ insects.
Keywords: Enhance Plant Resistance, Useful Microorganism, Enhance Growth, Whiteflies, Cotton Bollworm.
Full paper in Arabic: pdf