Tag Archives: winter rye

1328-1337 L. Zarina, S. Cerina and L. Proskina
Effect of sapropel fertilizer on the quality of the yield of some field crops
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Effect of sapropel fertilizer on the quality of the yield of some field crops

L. Zarina¹²*, S. Cerina¹ and L. Proskina³

¹Institute of Agricultural Resources and Economics, Crop Management Department,
Zinatnes 2, LV-4126 Priekuli, Latvia
²Latvia University of Life Sciences and Technologies, Faculty of Agriculture,
Liela 2, LV-3001 Jelgava, Latvia
³Latvia University of Life Sciences and Technologies, Faculty of Economics and Social Development, Liela 2, LV-3001 Jelgava, Latvia
*Correspondence: livija.zarina@arei.lv

Abstract:

Sapropel is specific water body sediments containing a high level of organic matter formed from remains of water biota mixed with mineral components. One of the most promising utilisation ways of sapropel is agriculture where it can be used as soil amendment to improve soil physical properties and thus obtain economically viable and high quality yield of field crops. For three years the experiments were conducted at Priekuli Research Centre of the Institute of Agricultural Resources and Economics. Dehydrated sapropel mass from Lake Bizas was studied as soil biological fertilizer to determine its suitability for use in field crop production. Researches were carried out in organic crop rotation, in the fields of potato, winter rye and field bean. Three different doses of sapropel fertilizer were applied. During the three-year period (2020–2022), the yield indicators of the plant species included in the study were evaluated, and the quality of the yield of these species was assessed. The results of research confirm the positive effect of sapropel on yield quality indicators – protein (field beans), starch (potatoes) falling number and 1,000 seed mass (winter rye).

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1380–1389 A. Linina, D. Kunkulberga, A. Kronberga and I. Locmele
Winter rye grain quality of hybrid and population cultivars
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Winter rye grain quality of hybrid and population cultivars

A. Linina¹*, D. Kunkulberga², A. Kronberga³ and I. Locmele³

¹Latvia University of Life Sciences and Technologies, Faculty of Agriculture, Institute of Soil and Plant Sciences, Liela street 2, LV-3001 Jelgava, Latvia
²Latvia University of Life Sciences and Technologies, Faculty of Food Technology Rigas street 22, LV-3001, Jelgava, Latvia
³Institute of Agricultural Resources and Economics, Priekuli Research Centre, Zinatnes street 1a, Priekuli LV-4126, Latvia
*Correspondence: anda.linina@llu.lv

Abstract:

Rye (Secale cereale L.) is an important European crop used for food that is grown primarily in Eastern, Central and Northern Europe. Consuming rye grain products provides a rich source of dietary fibre as well as several bioactive compounds with potentially positive health implications. The goal of the research was to compare the rye grain quality of hybrid and population cultivars. A field trial was carried out in Priekuli Research Centre, Institute of Agricultural Resourses and Economic (in Latvia) during a three-year period: 2014/2015, 2015/2016, and 2016/2017. The trial included population winter rye cultivars ‘Kaupo’, ‘Amilo’, ‘Dankowskie Amber’ and hybrid rye cultivars ‘Brasetto’, ‘Su Drive’, ‘Su Mephisto’. Rye grain quality indices were analysed at Latvia University of Life Sciences and Technologies, in Grain and Seed Research laboratory. Average data in our investigation (three years) show that cultivar, crop-year (weather conditions) and cultivar×crop-year interaction significantly (P < 0.05) affected rye grain protein content, starch content and Hagberg falling number. A significant negative correlation was found between protein content and starch content r = -0.937 (population cultivars grain), r = -0.944 (hybrid cultivars grain), medium strong negative correlation was found between protein content and falling number, respective r = -0.549 and r = -0.573. Differences between hybrid cultivar grain protein content, falling number and starch content comparing with population cultivar grains were not observed. The results of the current research show that the quality of all the studied cultivars meets the requirements for high-grade rye grains for food consumption.

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735-742 I. Tupits and P. Sooväli
The occurrence and severity of rust diseases of winter rye in Estonian climatic conditions
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The occurrence and severity of rust diseases of winter rye in Estonian climatic conditions

I. Tupits¹⋅² and P. Sooväli¹⋅²

¹Jõgeva Plant Breeding Institute, 1 J. Aamisepa St., 48309 Jõgeva alevik, Estonia;e-mail: Ilme.Tupits@jpbi.ee; Pille.Soovali@jpbi.ee
²Institute of Agricultural and Environmental Sciences, Estonian University of LifeSciences, 1a Fr.R. Kreutzwaldi St., 51014 Tartu, Estonia

Abstract:

This paper presents a six-year study (2000–2005) of rusts on 11 winter rye varieties in Estonian conditions. Environmental factors may be related to occurrence of different pathogens causing rye diseases. The aim of the study was to analyse the influence of environmental factors on the occurrence of rust diseases on rye. Visual assessments of Puccinia recondita at inflorescence emergence (GS 50) and Puccinia graminis at milk ripening stage (GS 75) under natural infection conditions were carried out. As to average of the years, trial results demonstrated quite moderate infection level in the field conditions at the Jõgeva Plant Breeding Institute (PBI). The year’s climatic conditions had significant influence on the occurrence of stem rust. The impact of year to leaf rust was insignificant. Genotype had an insignificant effect on stem and leaf rust. Stem rust correlated highly with year and variety – R2 = 70.3%, p < 0.001. Neither year nor variety had any impact on the occurrence of leaf rust (R² = 40.6%).

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