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GrainGenes Reference Report: BIU-231-279

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Reference	BIU-231-279
Title	Analysis of similarity of spring rye forms in regard to some agronomy characters
Journal	Biuletyn Instytutu Hodowli i Aklimatyzacji Roslin
Year	2004
Volume	231
Pages	279-285
Author	Galek R Bujak H
Language	Polish
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 m SUP 2 , grain yield per m SUP 2 (g), 1000-grain weight (g), and hectolitre weight (kg). For the classification of studied genotypes into groups and for the 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 homogeneous groups. Variance analysis showed significant genetic variability for all studied traits. Haufe-Geidel's test produced two (number of ears per m SUP 2 ) to seven (1000 grains/weight) homogeneous 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
Keyword	[ Hide all but 1 of 17 ] agronomic characteristics breeding value classification cluster analysis crop yield cultivar differentiation genetic distance genetic variation genotype heading heading date plant height rye seedweight spikes spring

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