Naslov
Does the water content affect the performance index in the sunflower grain filling stage?

Autori
Markulj Kulundžić, Antonela, Viljevac Vuletić, Marija ; Sudarić, Aleksandra ; Varga, Ivana ; Matoša Kočar, Maja

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

Izvornik
Zbornik radova 57. hrvatskog i 17. međunarodnog simpozij agronoma / Majić, Ivana ; Antunović, Zvonko - Osijek : Grafika Osijek, 2022, 220-224

Skup
57. hrvatski i 17. međunarodni simpozij agronoma

Mjesto i datum
Vodice, Hrvatska, 19.06.2022. - 24.06.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Helianthus annuus ; chlorophyll a fluorescence ; drought ; hybrid

Sažetak
The study aimed to determine the justification for irrigation in the grain filling stage and determine the difference in sunflower hybrids' sensitivity to the lack of water. Hybrids 7, 11 and 12 were singled out as being more sensitive to drought conditions than other hybrids according to the maximum quantum yield of photosystem II (TR0/ABS) and hybrids 7 and 11 were considered sensitive to drought conditions according to PIABS. As water regimes proved to be significant sources of variation, irrigating sunflower plants in the grain filling stage is considered justified. Also, the significant differences between tested genotypes justify using chlorophyll a fluorescence parameters to select breeding material that could supplement the conventional process of testing sunflower genotypes during breeding in dry conditions.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Poljoprivreda (agronomija), Interdisciplinarne biotehničke znanosti

POVEZANOST RADA