The path analysis for assessment of the determination of ryegrass seed yield

Dariusz Gozdowski

dariusz_gozdowski@sggw.edu.pl
Katedra Doświadczalnictwa i Bioinformatyki, SGGW w Warszawie (Poland)

Danuta Martyniak


Samodzielna Pracownia Traw i Roślin Motylkowatych, IHAR w Radzikowie (Poland)

Wiesław Mądry


Katedra Doświadczalnictwa i Bioinformatyki, SGGW w Warszawie (Poland)

Abstract

In the years 2001–2002, the breeding experiment with ryegrass was carried out. Seed yield and yield-related traits of plants for 59 advanced ryegrass lines were evaluated. The experimental data were analyzed statistically (e.g. using path analysis) to evaluate the determination of seed yield by examined yield-related traits. The effects of a number of fertile stems per plant and seed weight per spike on seed yield per plant were found similar (values of path coefficients were, respectively, equal to 0.453 and 0.449). The effect of a number of seeds per spike on weight of seeds per spike was quite strong, but that of 1000-grain weight was relatively weak (values of path coefficients were, respectively, equal to 1.003 and 0.429). The compensation between 1000-grain weight and a number of seeds per spike was found.


Keywords:

path analysis, yield-related traits, heritability, seed yield, perennial ryegrass

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Published
2008-03-31

Cited by

Gozdowski, D., Martyniak, D. and Mądry, W. (2008) “The path analysis for assessment of the determination of ryegrass seed yield”, Bulletin of Plant Breeding and Acclimatization Institute, (247), pp. 89–97. doi: 10.37317/biul-2008-0076.

Authors

Dariusz Gozdowski 
dariusz_gozdowski@sggw.edu.pl
Katedra Doświadczalnictwa i Bioinformatyki, SGGW w Warszawie Poland

Authors

Danuta Martyniak 

Samodzielna Pracownia Traw i Roślin Motylkowatych, IHAR w Radzikowie Poland

Authors

Wiesław Mądry 

Katedra Doświadczalnictwa i Bioinformatyki, SGGW w Warszawie Poland

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Copyright (c) 2008 Dariusz Gozdowski, Danuta Martyniak, Wiesław Mądry

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