Naslov
Heat wave impact on physiological status and green mass yield of red clover

Autori
Viljevac Vuletić, Marija ; Horvat, Daniela ; Kovačević Babić, Marija ; Čupić, Tihomir ; Tucak, Marijana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of abstracts of the 19th Ružička Days TODAY SCIENCE – TOMORROW INDUSTRY / Babić, Jurislav - Osijek : Zagreb : Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2022, 152-152

Skup
19. Ružičkini dani "Danas znanost - sutra industrija"

Mjesto i datum
Vukovar, Hrvatska, 21.09.2022. - 23.09.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
antioxidative status, climate change, heat stress tolerance

Sažetak
Heat wave, as a result of climate change, is an increasingly common phenomenon in eastern Croatia. During the early summer of 2021, eastern Slavonia experienced a severe heat wave with maximal daily temperature peak at 38.9°C. Here, we report impact of heatwave on plant antioxidative status after unfavorable conditions and consequently on green mass yield (GMY) of 12 red clover cultivars or breeding populations of different origin and therefore, different tolerance to heat. Canadian cultivars Ottawa and RAM converged with the lowest water content (WC) and the highest polyphenols which indicates that polyphenols played a leading role in the stress response of those cultivars. Heat wave response of cultivar OS MARIS was arranged by activation of enzymes guaiacol peroxidase (GPOD) and polyphenol oxidase (PPO). Heat wave activated both enzymatic and non-enzymatic response mechanisms and ultimately influenced GMY. Principal component analysis (PCA) grouped Croatian cultivar OS VIVA and OPCDs in the same quadrant with GMY indicating that heat the least influenced GMY in those cultivars and therefore sort out them as potential source of tolerance to stressful conditions.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Poljoprivreda (agronomija)

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