108(2)_str 17

 

ISSN 1392-3196 / e-ISSN 2335-8947
Zemdirbyste-Agriculture, vol. 108, No. 2 (2021), p. 133–140
DOI 10.13080/z-a.2021.108.017

The new waxy winter wheat cultivar ‘Minija DS’

Žilvinas LIATUKAS, Vytautas RUZGAS

Abstract

The new waxy winter wheat (Triticum aestivum L.) cultivar ‘Minija DS’ was developed at the Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry. The cultivar is very well adapted to harsh winter conditions. The mean cold tolerance score was 9.0 and surpassed the well adapted and widely grown standard cultivar ‘Skagen’ (score 8). The snow mould resistance (score 2.0) considerably surpassed that of the standard cultivars (4.0–6.0, mean score 4.9). The cultivar exhibits good grain pre-harvest sprouting resistance, which is important for stable grain quality after maturity. The cultivar can be grown under high input conditions; however, due to the low lodging resistance, maximal doses of plant growth regulators are necessary. The mean yield in 5 testing locations of the cultivar over three experimental years was 8.7 t ha-1, or 83.0%, compared to the yield of the standard cultivars. The mean protein content of ‘Minija DS’ was 13.5%, gluten content – 28.2%, sedimentation value – 31 mL, whereas the corresponding values of the standard cultivars were 12.6%, 25.2% and 43.0 mL, respectively. As a waxy winter wheat cultivar, ‘Minija DS’ has specific grain quality traits such as very low falling number – 65 s (mean of the standard cultivars – 340 s), lower flour output – 47% (67.2%) and higher dough water absorption – 73.5% (60.2%). The new cultivar is resistant to leaf rust and snow mould, medium resistant to powdery mildew but susceptible to leaf spot diseases, root rots and Fusarium head blight. The cultivar has been included in the Lithuanian National List of Plant Varieties and EU Database of Registered Plant Varieties.

Key words: waxy wheat, amylopectin, grain quality, cultivar.

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