Analysis of dry matter yield structure of forage grasses

Abstract

An average dry ma�er yield structure (three cuts per growing season) in relation to agronomically valuable characteristics of six forage grass species and a year of herbage utilization was studied over the period of 1989-2002 in Lithuania. The most productive species of the first cut of two years of herbage utilization were Phleum pratense (P < 0.01) and Festulolium hybrids (P < 0.05) (average dry ma�er yield were 7.42 and 6.66 t/ha, respectively), moderately productive -Festuca pratensis, Dactylis glomerata and Lolium perenne (5.58, 5.42 and 5.20 t/ha), significantly lower (P < 0.01) yielding was Poa pratensis (4.19 t/ha). During two years of herbage utilization Dactylis glomerata produced significantly (P < 0.01) higher dry ma�er yield of a�ermath -7.30 t/ha. Other grass species were ranked in the following order: Festulolium hybrids 5.85 t/ha, Festuca pratensis 4.94 t/ha, Poa pratensis 4.57 t/ha, Lolium perenne 4.48 t/ha, and Phleum pratense 3.92 t/ha. Dactylis glomerata and Poa pratensis distinguished by the highest a�ermath percent in the structure of the annual dry ma�er yield (57.7 and 52.2%). Phleum pratense formed an especially poor a�ermath -only 34.6%. An average annual dry ma�er yield data analysis of two years of herbage utilization over the period of [1989][1990][1991][1992][1993][1994][1995][1996][1997][1998][1999][2000][2001][2002] showed that Dactylis glomerata and Festulolium hybrids were most productive (P < 0.01) species.

Quantitative Traits Breeding for Multifunctional Grasslands and Turf

“…However, our results were similar to those presented by Akgun et al ( 2008 ). The average plant height in the second cut was 29.9 cm, which is similar to results published by Lemežiene et al ( 2004 ), who reported plant heights in the second cut ranging from 30.2 to 35.9 cm depending on year.…”

Effects of 5 years of digestate application on biomass production and quality of cocksfoot (Dactylis glomerata L.)

“…The highest yield was obtained in the first cut, which was conducted at the heading stage. The results were consistent with those obtained in long-term experiments, which indicate that cocksfoot may be harvested at least three times and that the highest biomass yield is obtained from the first cut (Leme ziene et al, 2004). Differences in growth responses to N fertilizer were observed between fertilizers types, especially in later years.…”

“…In the present research, the highest annual biomass yield (10.4 t DM ha −1 ) was obtained in the first year of sward use (at the rate fertilized with digestate at N 450 ). The obtained biomass yield was higher than shown in results achieved in other experiments, where in the first year of sward use cocksfoot fertilized with N 150 produced 7.30 t DM ha −1 (Lemežiene et al., ). On the other hand, in different climate environments, the productivity of cocksfoot is markedly higher.…”

“…Its herbage is characterized by having medium-high digestibility as well as early flowering and production, and this requires management involving several cuts per vegetative season. Although cocksfoot is not considered the highest yielding of the main sown grasses (Leme ziene, Kanapeckas, Tarakanovas, & Nekro sas, 2004;King et al, 2012), it is recognized as an important fodder for ruminants (Leme ziene et al, 2004;Peeters, 2004) and its herbage may be a promising feedstock for use in biogas production (Butkut _ e et al, 2014;Seppala, Paavola, Lehtomaki, & Rintala, 2009;Tilvikiene, Kadziuliene, Dabkevicius, Venslauskas, & Navickas, 2016). Furthermore, cocksfoot is effective in its N uptake (Laurent, Pelzer, Loyce, & Makowski, 2015;Siaudinis, Slepetiene, & Karcauskiene, 2014), and therefore, it may be an appropriate species for the utilization of nutrients in present in digestate.…”

Identification of genes involved in a water stress response in timothy and mapping of orthologous loci in perennial ryegrass

“…are coordinated by adjusting growth, development, cellular and molecular activities (Hubbard 1992(Hubbard , Židonytė 1992. Likewise, timothy (Phleum pratense L.), one of the most productive grass species in terms of first cut yield, forms low aftermath growth under dry conditions (Lemežienė et al 2004). Timothy is valued for its winter hardiness, good palatability, and moderate nutritional feed value and thus is a major forage crop in northern latitudes.…”