104(4)_str37

 

ISSN 1392-3196 / e-ISSN 2335-8947
Zemdirbyste-Agriculture, vol. 104, No. 4 (2017), p. 291–298
DOI  10.13080/z-a.2017.104.037

The new winter wheat cultivars ‘Kena DS’, ‘Gaja DS’, ‘Sedula DS’ and ‘Herkus DS’ for increased yield stability

Vytautas RUZGAS, Žilvinas LIATUKAS, Kristyna RAZBADAUSKIENĖ, Reine KOPPEL,
Gintaras BRAZAUSKAS

Abstract

The new cultivars of winter wheat ‘Kena DS’, ‘Gaja DS’, ‘Sedula DS’ and ‘Herkus DS’ were developed at Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry. The cultivars are well adapted to the temperate climate conditions with occasionally low temperatures in the winter season. The mean winter hardiness of the cultivars was evaluated by 7.8, 7.3, 8.2 and 7.3 scores, respectively and surpassed the well adapted and previously widely grown check cultivar ‘Zentos’ (6.8 scores). The cultivars exhibit good resistance to sprouting in ears, which is important in regions with high humidity during the harvesting period. They can be grown under sustainable and high input growing conditions. The mean grain yield of cultivars ‘Kena DS’, ‘Sedula DS’, ‘Gaja DS’ and ‘Herkus DS’ in high input fields during 2011–2016 was 8.7, 8.6, 9.9 and 9.1 t ha-1, respectively. The grain yield of the high yielding check cultivar ‘Skagen’ was 8.6 t ha-1. The mean protein content of cultivars ‘Kena DS’, ‘Sedula DS’, ‘Gaja DS and ‘Herkus DS’ was 14.3, 13.3, 13.6 and 13.3 %, sedimentation value – 61.2, 49.2, 34.5 and 49.3 ml, respectively. The dough stability of the new cultivars determined by a Brabender’s pharinograph was 12.7, 6.0, 7.3 and 6.9 min, volume of bread baked from 300 g of flour was 1600, 1650, 1700 and 1520 cm3, respectively. The total baking value index of the cultivars ‘Kena DS’, ‘Sedula DS’, ‘Gaja DS’ and ‘Herkus DS’ was evaluated by 700, 725, 750 and 660 scores respectively, where the excellent bread-making cultivar ‘Ada’ attained 670 scores. The new cultivars exhibit good resistance to powdery mildew (Blumeria graminis DC), acceptable resistance to tan spot (Pyrenophora tritici-repentis Died.), take-all (Gauemanomyces graminis Sacc.), Septoria glume blotch (Phaeosphaeria nodorum E. Müll) and Septoria leaf blotch (Zymoseptoria tritici (Desm.) The cultivars are included in the Lithuanian National List of Plant Varieties and EC Common Catalogue of Cultivars of Agricultural Plant Species.

Key words: agronomic characteristics, cultivars, grain quality, winter wheat.

Full text: 104_4_str37.pdf