Naslov
Dynamic chlorplast pigments concentration in leaves of soybean (Glycine max. L. Merr.) under reduced tillage

Autori
Sabo, Mirjana ; Jug, Danijel ; Jug, Irena

Izvornik
Archiv für Acker- und Pflanzenbau und Bodenkunde (0365-0340) 51 (2005), 3; 291-297

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

Ključne riječi
Glycine max.L. Merr.; chloroplast pigments; yield; tillage

Sažetak
The objectives of this experiment were to determine the chloroplast pigments dynamics of soybean leaves during the growth stages under different tillage systems, which can be a major factor limiting yield of soybean. The greatest differences between the photosynthetic productivity parameters of the investigated soybean were determined from reproductive stages (R2 and R3-4). The chlorophyll a, chlorophyll a/b and carotenoids content under CT, DH and NT was greater in the reproductive stages (R2 and R3-4) than in the early stages (V3-4 and R1). The concentration dynamics of chlorophyll b and chlorophyll a/b was very similar in all growth stages and under all tillage systems in the 2- yr average. The increased drought stress in 2003 was likely critical in the observed lower seed yields in 2003. The yield of soybean was significantly lower under NT than CT and DH treatments in both years. The relationship between the soybean yield and chloroplast pigments concentration is strongly influenced by external factors. In the 2-yr average the soybean yield was considerably affected by the years and tillage systems. Statistical analysis showed a very significant relationship between chlorophyll pigments content, but photosynthetic parameters investigated did not correlated with soybean yield.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA