Naslov
How plant silica affect on maize resistance to the European corn borer, Ostrinia nubilalis (Hubner)

Autori
Sarajlić, Ankica, Raspudić, Emilija, Majić, Ivana, Lončarić, Zdenko, Josipović, Marko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Book of Proceedings VII International Scientific Agriculture Symposium "Agrosym 2016" / Kovačević, Dušan - , 2016, 1669-1674

ISBN
978-99976-632-7-6

Skup
VII International Scientific Agriculture Symposium "Agrosym 2016"

Mjesto i datum
Jahorina, Bosna i Hercegovina, 06.10.2016. - 09.10.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
European corn borer ; silicon ; irrigation ; nitrogen fertilization ; hybrid

Sažetak
Silicon (Si) is not considered as an essential element but it is beneficial. It has been found to help improving tolerance against insects increasing stem strength, plays a very important role in drought tolerance, enhance nutrient deficiency. Tissue levels of Si vary within plant species or cultivars. The aim of this study was to determine silicon concentration in maize leaf under different levels of irrigation, nitrogen fertilization and various genotypes and relationship with ECB larvae damage. Field experiments were conducted during three years (2012-2014) at the Agricultural Institute in Osijek (Croatia) with natural infestation of European corn borer (ECB). At the end of each growing season ear weight (g), tunnel length (cm), ear shank damage (cm), the number of larvae in maize stalk, number of larvae in the ear shank, and total number of larvae in plant were determined. In silking stage, ten leaves (below the ear), from 10 maize plants were sampled on each variant (total 1, 080 plants) and silicon concentration was determined (%). There was no statistically significant difference between irrigation levels in silicon concentration while the variant with the highest level of nitrogen fertilization had the lowest concentration of silicon and the greatest damage from ECB larvae (P<0.05). Hybrid resistance didn't entirely depend on silicon concentration, even though damage was reduced with higher concentration of silicon at some hybrids. Silicon availability to plants is low in the soil and it is necessary to apply silicon fertilization to enhance plant resistance.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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