Variability of grain yield components of some new winter wheat genotypes (Triticum aestivum L.)

Plant, Soil and Environment

Hardi Ž.U.:¹  Sabo M.¹  Bede M.¹ 

关键词: Triticum aestivum L.;    genotype;    components grain yield;    stem;    spike;    grain;    biological yield;    agriculture yield;   

DOI  :  

学科分类：农业科学（综合）

来源: Czech Academy of Agricultural Sciences

【 摘 要 】

Variability of grain yield components of some new winter wheat genotypes (e.g. Lara, Lenta, Kruna, Fiesta, Perla, and one line of AG-45) was examined. The analysis of grain yield components of these genotypes and the line was undertaken in a two-year research (1997/1998 and 1998/1999) at two different locations. Significant differences among genotypes, locations and research years were established. In the first experimental year (1997/1998) there was a high positive correlation between nearly all components of the grain yield. The most significant correlation was found between the grain number per spike and grain yield. In the second experimental year (1998/1999) the components did not show statistically significant correlation with the grain yield. It seems that the grain yield of examined genotypes depended significantly on the grain number per spike, grain mass per spike, and agroecological conditions during the vegetation period, whereby the potential yield was determined by the interaction among genotypes, location and production year. The biggest differences among examined genotypes of winter wheat were found in the stem height and spike length.

【 授权许可】

Unknown