Seed and quality of Italian ryegrass (Lolium italicum) containing different ploidy produced in the first harvest year
2005
Simic, A. | Vuckovic, S. | Sabovljevic, R.
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 year. Spring N-application did not influence the seed yield of the domestic Italian ryegrass cultivars, nor introduced tetraploid. Produced seed was an excellent quality, with total germination above 90. 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 Serbian conditions.
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