Naslov
Responsiveness of nondormant wheat seeds to osmotic stress and bract extract inhibition at two germination temperatures

Autori
Šarčević, Hrvoje ; Gunjača, Jerko ; Barić, Marijana

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

Izvornik
Abstracts of oral and poster presentations / Bedo, Zoltan - Budimpešta : Agricultural Research Institute of the Hungarian Academy of Sci, 2000, 261-261

Skup
Wheat in a Global Environment, 6th International Wheat Conference

Mjesto i datum
Budimpešta, Mađarska, 05.06.2000. - 09.06.2000

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
wheat; dormancy; osmotic stress

Sažetak
Germination of isolated wheat embryos or whole grains can be inhibited by media containing ABA, CT, unknown inhibitors from wheat bracts or osmotically active agents. Germination of nondormant grains of five wheat genotypes was examined at two temperatures (200C and 330C) on three media (distilled water, bract extract and 2% D-mannitol solution). The germination rates were calculated by using survival analysis of the germination data. The germination rate in distilled water and response to bract extract inhibition and osmotic stress (D-mannitol solution) differed between genotypes. All genotypes exhibited slower germination rate in distilled water and increased responsiveness to bract extract inhibition and osmotic stress at the higher temperature. These results are in agreement with previous reports that ABA responsiveness is enhanced at higher temperatures. Thus, temperature effect on the seed response to bract extract inhibition or osmotic stress could serve as a supplement criterion in screening for pre-harvest sprouting resistance.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA