The Comparison of Some Agronomic Traits in Meadow Fescue and Perennial Ryegrass and Their Artificial Triploid Hybrids

Authors: Bilal DENİZ

Abstract: Meadow fescue and perennial ryegrass and their triploid hybrids were grown under glasshouse conditions in 1992 and 1993. These plants were grown by using clay pots and sandy loam soil and by 3 and 4 g N/pot. During the experiment period, nine cuttings were made and the fresh weight and dry matter yield, and crude protein content and yields of the species were determined. The average fresh weight and dry matter yields of triploid hybrids were higher and though the difference between these and perennial ryegrass was significant in all growing periods, while the difference between these and meadow fescue was found significant only in its 2nd, 3rd and 4th cuts. The average fresh weight and dry matter yields of triploid hybrids, meadow fescue and perennial ryegrass were 100.50, 90.83 and 67.20 g/plant-period and 23.13, 18.95 and 14.85 g/plant-period, respectively. The average crude protein contents were determined 18.58, 18.37 and 18.14 % in perennial ryegrass, meadow fescue and triploid hybrids in turn. The yield of crude protein was higher in triploid hybrid and though the difference between them and perennial ryegrass was significant except 4th and 8th cuts while the difference between these and meadow fescue was found significant only in its 2nd and 3rd cuts. The average crude protein yields of triploid hybrids, meadow fescue and perennial ryegrass were 3574.5, 2923.0 and 2314.5 mg/plant-period, respectively. It was understood that maintaining high yield characteristics in triploid hybrid plants and obtaining fertile allohexaploid using them would be important and helpful.

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