Assessment of perennial ryegrass (Lolium perenne L.) genotypes under Latvia agro-ecological conditions

Rancane, S., Latvia Univ. of Life Sciences and Technologies, Jelgava; Vezis, I., Latvia Univ. of Life Sciences and Technologies, Jelgava; Kreismane, D., Latvia Univ. of Life Sciences and Technologies, Jelgava; Rebane, A., Latvia Univ. of Life Sciences and Technologies, Jelgava; Jansons, A., Latvia Univ. of Life Sciences and Technologies, Jelgava

Assessment of perennial ryegrass (Lolium perenne L.) genotypes under Latvia agro-ecological conditions

2021

Rancane, S., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Vezis, I., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Kreismane, D., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Rebane, A., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Jansons, A., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia)

Within the frame of the Nordic/Baltic public-private partnership ’PPP for pre-breeding in perennial ryegrass’ various activities were performed, including assessment of L. perenne (Lp) genotypes under agro-ecological conditions of Latvia. This article summarizes the data obtained in two harvest years for 19 intermediate tetraploid (4x) Lp genotypes. In order to compare the results obtained in ryegrass with performance of grass interspecies hybrids (Fl), which become especially relevant in the recent years, two varieties, developed in Latvia – Lolium × boucheanum Kunth. ‘Saikava’ and × Festulolium ‘Vizule’ were included in the experiment. Various scores were performed, including evaluation of regrowth, intensity of culm development, sward cover, crown rust (Puccinia coronata) susceptibility, etc. The dry matter yield (DMY) and fodder quality were also determined. It can be concluded that the genotypes showed relatively good results in the first two harvest years. Wintering conditions were favourable. Despite the intensified drought and heat in the 1st ley year, relatively high DMY, which ranged from 9.30 to 12.15 t haE−1, for Lp were harvested in three cuts. In the 2nd ley year, under more favourable humidity conditions, Lp in four cuts provided similar DMY, which ranged from 8.81 to 11.50 t haE−1. If we compare the average DMY of Lp and Fl genotypes, it can be concluded that in the first two harvest years no significant differences were found, the average DMY was 10.30 and 10.64 t haE−1, respectively. No significant differences were found between Lp and Fl in terms of forage quality.

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Mots clés AGROVOC

assessment contenido de materia seca dry matter content feed quality fenologia festulolium field experimentation forage forrajes fourrage genotipos genotypes latvia letonia lettonie lolium perenne meteorological factors phenology puccinia coronata variedades varieties

Informations bibliographiques

Publié dans

Research for Rural Development. International Scientific Conference Proceedings (Latvia)

Numéro 27/2021 ISSN 2255-923X

Editeur

Latvia University of Life Sciences and Technologies

Pagination

p. 7−14

D'autres materias

Variete; Genotype; Phenologie; Condiciones atmosfericas; Conditions meteorologiques; Experimentation au champ; Teneur en matiere seche; Experimentacion en campo

Langue

anglais

Note

Summary (En). 3 tables, 2 fig., bibliography: p. 13−14

Type

Conference; Web Site; Ams

Conférence

International Scientific Conference: Research for Rural Development 2020, 27, Jelgava (Latvia), 12−14 May 2021

Sur AGRIS depuis: 2022-02-15

Format: AGRIS AP

Fournisseur de données

Cette notice bibliographique a été fournie par Fundamental Library of Latvia University of Life Sciences and Technologies