Naslov
Investigation of barley genotypes from the double haploid population under different nitrogen supply

Autori
Veres, Szilvia ; Petek, Marko ; Tóth, Brigitta ; Rengel, Zed

Izvornik
Növénytermelés (0546-8191) 63 (2014); 123-126

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
nitrogen, barley, chlorophyll, chlorophyll fluorescence

Sažetak
The main goal of our research was to investigate some physiological parameters of barley genotypes under optimal and a quarter amount of nitrogen contents. Nitrogen fertilization even is a powerful tool in increasing grain yield in cereals. Agrarians have to optimize the application of nitrogen fertilizers to avoid pollution by nitrates parallel with preserving their economic margin. The price of nitrogen fertilizer is getting continuously growing. Hence, the supply of nitrogen is crucial for plant growth and development. The role of nitrogen in plant production is closely connected with photosynthesis. The main participators of photosynthesis are contains large amount of nitrogen, such as rubisco and chlorophylls. Several researches focused on investigating mainly the intensity and products of dark reaction of the photosynthetic pathway, but we no have sufficient information about light reaction affected by genotypic and nitrogen supply variations. Chlorophyll fluorescence induction method was used to examine potential photochemical activity (Fv/Fm) and other parameters of fast and slow phase of chlorophyll fluorescence induction curve. During our experiments relative chlorophyll content measurement was applied to follow the total chlorophyll contents of genotypes. The measured parameters help choosing efficient barley genotypes of the double-haploid population to breed more productive barley lines under lower but sufficient nitrogen supply.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA