Possibilities of Italian ryegrass seed production in northwestern Serbia | Mogućnosti proizvodnje semena italijanskog ljulja u severozapadnoj Srbiji
2006
Simić, A., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Vučković, S., Poljoprivredni fakultet, Beograd - Zemun (Serbia)
Three cultivars (domestic K-13 diploid and K-29 tetraploid, and introduced Tetraflorum tetraploid) were investigated in two years trials, with and without spring N-fertilizing. The results of this investigation showed that successful production of Italian ryegrass seed could be achieved with two cuttings in the first production years. Spring N-application in those conditions did not influence the seed yield of the domestic Italian ryegrass cultivars, nor introduced tetraploid. On the basis of obtained results it may be concluded that investigated Italian ryegrass cultivars have high seed production potential (2733 kg/ha, cv, K-29); in temperate years the Italian ryegrass could realize 2 seed harvests; high seed production of Italian ryegrass could be obtained without spring N-application in those conditions. Harvest index was from 15.67 to 24.36 and the lowest was in cv. K-13 in both years.
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