Effects of different types of cytoplasm on plant height of maize inbred lines

The aim of the study was to determine effects of both, different types of cytoplasm (cms-C, cmsS and fertile) and environmental factors, on the plant height of 12 maize inbred lines. The trial with inbred lines was set up in two locations (Zemun Polje - Selection field and Zemun Polje - Školsko dobro) in 2008 and 2009. Very significant differences in the plant height among inbred lines in dependence on the type of cytoplasm and the location were established by the analysis of variance. The average plant height varied from 161.8cm (L11) to 220.5cm (L1). In relation to the type of cytoplasm (cms-C, cms-S and fertile), the average values of the plant height very significantly varied (P≤1%). The plant height in inbred lines with fertile cytoplasm was very significantly higher (Lsd0.01) (187.6cm) than in inbred lines with sterile cms-C (181.1cm) and cms-S (180.2cm) types of cytoplasm. Varying of average values of the plant height was very significant (P≤1%) in both years of investigation and locations. In 2008, the average plant height of inbred lines (173.98cm) was significantly lower than the average values recorded in 2009 (191.94cm). Very significantly higher values of the plant height were determined in the first location, Selection field (189.25cm) than in the second location, Školsko dobro (176.67cm)