Grain weight per spike of genotypes of triticale (x triticosecale Witt.) in agroecological conditions of Banja Luka

Abstract

Grain weight per spike is the limiting component of yield, which represents the resultant of pollination and fertilization and genetypic interaction of agrotechnique and given environmental conditions. In this paper we analyzed the mean grain weight per spike in ten genotypes of winter hexaploid triticale: Trimaran, Ticino, Odisej, Agrano, BL-T-21, BL-T-17, BL-T-10, Max 1793, Bogo and Tornado. The experiment on winter triticale was conducted during 2005/06, 2006/07, and 2007/08 in Trapisti, region Banja Luka. During the experiments with winter triticale standard agricultural practices were applied. Microclimatic conditions during cultivation of triticale in 2006 and 2008 were relatively similar, while in 2007 was a drought period. Statistical analysis of observed genotypes for the specified parameter was performed using method of analysis of variance 10 × 3. The analyses of significant differences were done by using LSD test. The analysis of variance of the mean grain weight per spike of examined genotypes of triticale in studied years showed a significant difference between the tested genotypes of triticale, as well as a highly significant difference between the studied years. The highest value of mean grain weight per spike was observed on Odisej genotipe (3.00 g) in 2008, while the lowest value of mean grain weight per spike had BL-T-21 (1.43 g) in 2007. Test of differences between mean values of grain weight per spike in tested triticale genotyes regardless the year showed that Odisey genotype has highest value (2.68 g), while genotypes BL-T-10 (2.26 g), Bogo (2.24 g) and Agrano (2.23 g) showed tendency to give high values. Taking into consideratoin our results given genotypes of triticale can be recomended for cultivation in agroecological conditions in Banja Luka.

Keywords

• genotypes
• grain weight per spike
• triticale