Variation and correlations for some yield related characters of buckwheat
Joanna Wolińska
iro@uph.edu.plKatedra Hodowli Roślin i Nasiennictwa, Akademia Podlaska, Siedlce (Poland)
Jan Woliński
Zakład Mechanizacji Rolnictwa, Akademia Podlaska, Siedlce (Poland)
Małgorzata Wykrzykowska
Katedra Hodowli Roślin i Nasiennictwa, Akademia Podlaska, Siedlce (Poland)
Abstract
Buckwheat is a species of high yielding potential. The theoretically calculated crop amounted to 20 t/ha. Nowadays the crop ranges between 0.5 and 2.5 t/ha. Such large fluctuations are caused by biological features of the species (large variability of characters) and by weather conditions during vegetation. The aim of the study was to compare the variability of yield related characters of the Red corolla and Hruszowska varieties. The Hruszowska variety is one of the initial forms used to create Red corolla variety. The studies are a part of breeding work, aimed at a buckwheat variety with stabile crop and decreased amount of green mass used for harvesting. The results showed that the Hruszowska variety was characterized by a slightly larger variability of the tested characters than Red corolla variety. The largest variability was found in seed weight per plant, plant weight and number of seeds per plant. The most stable characters were as follows: number of nodes on main shoot (Hruszowska V = 14.50%, Red corolla V = 12.34%), plant height (Hruszowska V = 18.53%, Red corolla V = 12.74%), thousand seed weight (Hruszowska V = 17.74%, Red corolla V = 16.72%), height of the first inflorescence (Hruszowska V = 20.91%, Red corolla V = 20.14%) and length of florescence area (Hruszowska V = 20.06%, Red corolla V = 20.14%). The largest differences between coefficients of variation were proved in number of seeds per plant (Hruszowska V = 78.95%, Red corolla V = 50.93%), seed weight per plant (Hruszowska V = 71.25%, Red corolla V = 52.74%) and in the number of seeds in one inflorescence (Hruszowska V = 52.11%, Red corolla V = 46.11%). Correlation coefficients between selected characters were also calculated. Significant correlations between seed yield per plant and number of seeds per plant number of inflorescences per plant and number of seeds in one inflorescence were found in both varieties. Significant and negative correlations between thousand seed weight and seed weight per plant were also proved in the Red corolla variety, whereas the correlations were not significant in the Hruszowska variety.
Keywords:
buckwheat, correlation, variability, yieldReferences
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Authors
Joanna Wolińskairo@uph.edu.pl
Katedra Hodowli Roślin i Nasiennictwa, Akademia Podlaska, Siedlce Poland
Authors
Jan WolińskiZakład Mechanizacji Rolnictwa, Akademia Podlaska, Siedlce Poland
Authors
Małgorzata WykrzykowskaKatedra Hodowli Roślin i Nasiennictwa, Akademia Podlaska, Siedlce Poland
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Copyright (c) 2006 Joanna Wolińska, Jan Woliński, Małgorzata Wykrzykowska
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