Корелационен и Path-коефициентен анализ на добива и някои негови компоненти при перспективни линии пролетен ечемик
Милка Димитрова-Донева • Маргарита Гочева
Институт по земеделие - Карнобат, Карнобат, България
Резюме
The present study was undertaken with the objective to determine the association
between yield and its component characters and their direct and indirect effects
on grain yield in perspective lines spring barley The study was conducted at the
Institute of Agriculture, Karnobat, during the period 2015–2017 and included 10
newly lines, Bulgarian selection. The experiment was carried out by blok method,
in 4 replications, at the plot size of 10 m2. Were reporte: grain yield (kg/ha), spikes
number per m2 and plant height (cm), spike lenght, number of sterile spikelets
per spike, grain number per spike, grain weight per spike (g), 1000 grain weight
(g). Biometric measurements were performed on 25 plants from each iteration.
The dates were analysed using appropriate statistical methods. There were applied
correlation analysis and Path coefficient analysis. The direct and indirect effects of
the components on the grain yield were determined. Based on the results of this study, correlation coefficients revealed that grain yield significantly and positively
was correlated with spike number per m2, plant height, grain weight per spike
and with 1000 grain weight. Path coefficient analysis in the genotypes tested was
indicated that the spikes number per m2 and grain weight per spike had highest
positive direct effect on grain yield.
Key words: Correlation, Path-coefficient analysis, Spring barley, Yield, Yield
elements
