The yield and quality of Latvian winter wheat cultivars and other widely grown cultivars | Latvijā selekcionēto un plašāk audzēto ziemas kviešu šķirņu raža un kvalitāte
2021
Malecka, S., Institute of Agricultural Resources and Economics, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia) | Stramkale, V., Institute of Agricultural Resources and Economics, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia) | Vaivode, A., Institute of Agricultural Resources and Economics, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia) | Damskalne, M., Institute of Agricultural Resources and Economics, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia)
Field trials of Latvian origin winter wheat cultivars and widely grown winter wheat varieties were carried out at the Institute of Agricultural Resources and Economics in three places: Stende Research Centre (SRC), Priekuli Research Centre (PRC), and Latgale Agricultural Research Centre (LARC). A field experiment was carried out by using an integrated growing technology. Two amount levels of fertilizer application were calculated depending on the desirable yield (6 t haE−1 – 8 t haE−1). Two growing technologies – R1 and R2 (factor A) and four different cultivars (factor B) in four replications were used. Seed rate was 450 germinating seeds per mE−2. The article was prepared in the framework of the demonstration project “The demonstration of integrated growing technology with perspective Latvian wheat, oats and barley cultivars in different regions of Latvia”. The aim of the publication was to show the results of demonstration field trials to compare grain yield and the quality of winter wheat cultivars in 2018/19 and 2019/20. Growing conditions were optimal in both years. Winter wheat yields were high thus the used growing technology was efficient. Winter wheat grain yields were 8.18 t haE−1–12.72 t haE−1 at SRC and LARC in 2019, but yields were lower 6.87 t haE−1 – 8.84 t haE−1 at PRC. Increased fertilizer application provided significantly higher yields under growing technology variant R2 at SRC and LARC field trials variants. Winter wheat grain yields were also high (8.38 t haE−1 – 12.23 t haE−1) at SRC and LARC in 2020, but the yield was lower (4.24 t haE−1 – 5.72 t haE−1) at PRC. Winter wheat grain protein content was equivalent (98.7 – 150.1 mg kgE−1) in both years.
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