Naslov
Photosynthetic productivity of six winter wheat genotypes (Triticum aestivum L.)

Autori
Sabo, Mirjana

Izvornik
Acta Agronomica Hungarica (0238-0161) 50 (2002), 4; 399-409

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

Ključne riječi
Triticum aestivum L.; genotype; chlorplast pigments; leaf area index; specific leaf area; dry matter

Sažetak
Differences between six new winter wheat genotypes in some photosynthetic parameters (leaf area, LAI, specific leaf area, dynamics of chloroplast pigment concentration and of dry matter formation) were investigated at two localities, Donji Miholjac and Kutjevo, during the vegetation periods 1997/98 and 1998/99. The parameters tested were determined by standard methods. The greatest differences between the photosynthetic productivity parameters of the genotypes investigated were determined from the heading stage to the milky ripe stage. The relationship between the dry matter accumulation and other physiological parameters, e.g. chloroplast pigments concentration, LAI and SLA, is stable and significant, but strongly influenced by external factors. Statistical analyses showed a very significant relationship between the dry matter content and the parameters examined with a large number of significant correlations. The most important positive correlation was found between the dry matter content of and chlorophyll a, b and carotenoids, while negative correlations were found with LAI and SLA. The photosynthetic parameters investigated were also negatively corelated with SLA.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA