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https://doi.org/10.33128/ag.84.6.2

Morpho-physiological and hormonal response of different winter wheat varieties to drought stress at germination and seedling stage

Jurica Duvnjak orcid id orcid.org/0000-0002-1340-2899 ; Agricultural Institute Osijek, Juzno predgradje 17, Osijek, Croatia
Lidija Brkljačić ; Ruđer Bošković Institute, Bijenička cesta 54, Zagreb, Croatia
Branka Salopek Sondi ; Ruđer Bošković Institute, Bijenička cesta 54, Zagreb, Croatia
Valentina Španić orcid id orcid.org/0000-0002-7684-5419 ; Agricultural Institute Osijek, Juzno predgradje 17, Osijek, Croatia


Puni tekst: engleski pdf 1.637 Kb

str. 277-294

preuzimanja: 216

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Sažetak

Drought stress can have a significant influence on the reduction of wheat (Triticum aestivum L.) growth and development. This study investigated morpho-physiological, abscisic (ABA) and salicylic (SA) acids' responses of six winter wheat varieties (Rujana, Silvija, Fifi, Bubnjar, Anđelka and Pepeljuga) during the germination and seedling stage. Plants were exposed to 10 and 20% polyethylene glycol (PEG) solution for seven days. Certain morphophysiological changes were observed under stress condition in comparison to controls, such as a reduction of germination energy (GE), shoot length, relative water content (RWC), increase of root growth, depending on varieties and stress intensity. ABA was increased in all cultivars confirming stress status of the plants. SA showed a tendency to decrease depending on the concentration of PEG and was positively correlated with shoot length and shoot dry weight. In the varieties Rujana, Anđelka, Fifi and Bubnjar a less significant decrease in germination energy was recorded, compared to Pepeljuga and Silvija.

Ključne riječi

drought stress; hormones; winter wheat

Hrčak ID:

306359

URI

https://hrcak.srce.hr/306359

Datum izdavanja:

6.7.2023.

Podaci na drugim jezicima: hrvatski

Posjeta: 842 *