Impact of row spacing and seed rate on the production characteristics of the perennial ryegrass (Lolium perenne L.) and their valorisation

Marijana JOVANOVIĆ TODOROVIĆ; Vera POPOVIĆ; Savo VUČKOVIĆ; Snežana JANKOVIĆ; Andreja  MIHAILOVIĆ; Maja IGNJATOV; Vladimir STRUGAR; Velimir LONČAREVIĆ

doi:10.15835/nbha48312057

Authors

Marijana JOVANOVIĆ TODOROVIĆ Institute of Agricultural Economist, 15 Volgina, 11000, 11000 Belgrade (RS)
Vera POPOVIĆ Institute of Field and Vegetable Crops,30 Maksim Gorky Street, 21000, Novi Sad (RS)
Savo VUČKOVIĆ University of Belgrade, Faculty of Agriculture,6 Nemanjina Street, 11120, Belgrade (RS)
Snežana JANKOVIĆ Institute of Applied Science in Agriculture,68 B. Despota Stefana, 11000, Belgrade (RS)
Andreja MIHAILOVIĆ UNION University, Faculty of Law, 36 B. Maršala Tolbuhina, 11000, Belgrade (RS)
Maja IGNJATOV Institute of Applied Science in Agriculture,68 B. Despota Stefana, 11000, Belgrade (RS)
Vladimir STRUGAR Institute of Field and Vegetable Crops, 30 Maksim Gorky Street, 21000, Novi Sad (RS)
Velimir LONČAREVIĆ Institute of Field and Vegetable Crops,30 Maksim Gorky Street, 21000, Novi Sad (RS)

DOI:

https://doi.org/10.15835/nbha48312057

Keywords:

harvest index; perennial ryegrass; row spacing; seed rate; seed yield

Abstract

In this paper are shown the results of the production characteristics of the perennial ryegrass (Lolium perenne L.) cv. ‘Naki’, which grown in rows with different row spacing and seed rate in the agroecological conditions of central Serbia in three successive analysed years. Four levels of two observed factors were used in the experiment: row spacing (12.5; 25; 37.5 and 50 cm) and seed rate (9, 16, 23 and 30 kg ha^-1). Due to the analyses, the height of the tiller, the length of the spike and the number of spikelets per spike gave better results by sowing in wider rows (37.5 and 50 cm) using lower seed rate (9 and 16 kg ha^-1). Seed yield and harvest index responded favourably to sowing in rows at a wider row spacing (37.5 and 50 cm) in combination with a lower seed rate (9 and 16 kg ha^-1), while shoot dry weight gave better results by sowing in narrower rows (12.5 cm) with lower seed rate (9 and 16 kg ha^-1). Using the appropriate row spacing in sowing and the optimum of seed rate provides the highest results of the production characteristics of the perennial ryegrass that can be applied to further production.

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