PHENOTYPIC VARIABILITY OF YIELD COMPONENTS OF Triticum spelta IN ORGANIC PRODUCTION

Abstract

The aim of this study was to investigate phenotypic variability of yield components for different spelt wheat genotypes (Triticum spelta L.). Six genotypes of winter spelt wheat (Nirvana, KG-37-8/3, KG-54-7/3, KG-54-8/1, KG-54-4/2, and KG-54-2/3) were grown during two growing seasons (2011/2012 and 2012/2013) at certified organic trial parcel in the Municipality of Čačak, Serbia. Through variance analysis, highly significant differences in mean values for both investigated yield components (number of grains per spike and grain weight per spike) were established. Higher values of coefficient of variability for grain weight per spike (CV = 12.8%) than grain number per spike (CV = 10.2%) were determined. The highest average value for number of grains per spike had genotype KG-54-7/3 (46.22). Genotype KG-54-2/3 (1.94 g) had significantly higher mass of hulled grains per spike compared to other investigated genotypes. Phenotypic analysis of variance indicated that ecological factors had higher impact on the expression of grain weight per spike, but genetic factors had higher impact on the expression of number of grains per spike.

Estimation of Genetic Variability of Autochthonous Wheat (Triticum Aestivum L.) Genotypes Using Multivariate Analysis

“…Variability is observed for seed size trait, 34.78% of the genotypes presented small size, 26.08% intermediate size and 39.13% of the wheat genotypes presented large seed size. Wheat grain yield is the result of some important physiological traits occurring in the growth and mostly is determined by the number of spikes, the number of grains and grain weight (Zecevic et al 2010;Sabaghina et al 2014). Results for tiller capacity trait reveal two accessions AGB 0332 and AGB 0334 with the highest value (2.6) while 9 from 23 wheat genotypes presented the same lowest value.…”

The Effect of Different Cropping Systems on Yield, Quality, Productivity Elements, and Morphological Characters in Wheat (Triticum aestivum)

“…The Mann-Whitney test showed higher values of the U indicator relative to the critical U (124.5, respectively 147.5 in relation to 211). The literature recognizes that height is a trait strongly influenced by both environmental and technological conditions [38][39][40]. The coefficient of variability of height, more than that of yield, is a good criterion to show its effect on yield variability and stability [41].…”