Analysis of similarity of spring rye forms in regard to some agronomy characters
Renata Galek
kghrin@upwr.edu.plKatedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza we Wrocławiu (Poland)
Henryk Bujak
Katedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza we Wrocławiu (Poland)
Abstract
The aim of the studies was to evaluate similarity and breeding value of a collection of 20 spring rye cultivars from different climatic and geographical regions. The following traits were analysed: plant height (cm), heading date, number of ears per 1m2, grain yield per 1 m2 (g), 1000 grain weight (g), and hectolitre weight (kg). For classification of studied genotypes into groups and for determination of genetic distance between groups, Ward’s clusting method was used. Since Ward’s method is not appropriate for assigning breeding value to particular traits, Haufe-Geidel procedure was applied for separation of means into non-overlapping homogenous groups. Variance analysis showed significant genetic variability for all studied traits. Haufe-Geidel’s test produced two (no. of ears/m2) to seven (1000 grains/ weight) homogenous groups. Cluster analysis of the spring rye genotypes the Ward’s method indicated strong intergenotype differentiation. Almost each of the genotypes from collection constituted a distinct homogeneous group.
Keywords:
date of heading, hectolitre weight, plant height, similarity analysis, spring rye, 1000 grain weight, yield of grainReferences
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Authors
Renata Galekkghrin@upwr.edu.pl
Katedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza we Wrocławiu Poland
Authors
Henryk BujakKatedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza we Wrocławiu Poland
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