Variability of Italian ryegrass and perennial ryegrass seed quality produced in two different regions
Stanisavljević, Rade (Institute for Plant Protection and Environment, Belgrade (Serbia)) | Milenković, Jasmina (Institute for Forage Crops, Kruševac (Serbia)) | Štrbanović, Ratibor (Institute for Plant Protection and Environment, Belgrade (Serbia)) | Poštić, Dobrivoj (Institute for Plant Protection and Environment, Belgrade (Serbia)) | Velijević, Nataša (Institute for Plant Protection and Environment, Belgrade (Serbia)) | Jovanović, Snežana (Maize Research Institute Zemun Polje, Belgrade (Serbia)) | Tabaković, Marijenka (Maize Research Institute Zemun Polje, Belgrade (Serbia))
The paper presents the results of four seed lots produced in Serbia and Belarus in two years, and examines the influence of their quality on 1000 seed mass, germination energy and total germination. There was no impact of the region or the year on the studied seed quality parameters. There was high variability of 1000 seed mass (CV = 20.3 %) taken from different seed lots of Italian ryegrass. Lower variability was found for germination energy and total germination (CV = 9.88 % and CV = 7.98 %). Ryegrass seed lots had lower variability for 1000 seed mass (CV = 8.34 %), germination energy and total germination (CV = 4.80 % and CV = 3.70 %). In the seeds of both species there was no significant correlation dependence of seed mass regarding germination energy and total germination. Significant influence was determined in both species between germination energy and total germination (P≤0.001 and P≤0.05).
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