Winter wheat yield and yield component values depending on varieties | Ziemas kviešu šķirņu raža un ražas komponentu vērtības atkarībā no šķirnes
2020
Auzina, I., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Agriculture | Linina, A., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Agriculture | Stramkale, V., Latvia Univ. of Life Sciences and Technologies, Vilani, Vilani Municipality (Latvia). Inst. of Agricultural Resources and Economics. Dept. of Field Crops Breeding and Agroecology. Vilani Div.
The aim of this investigation was to evaluate the yield and yield forming components of four winter wheat (Triticum aestivum L.) varieties, depending on the fertilizer and the used varieties. Field experiment with winter wheat varieties 'Skagen', 'Edvins', 'Brencis' and 'Talsis' were conducted at the “Agriculture Science Centre of Latgale” in 2018/2019. The end of vegetation in 2018 was observed in the third decade of October. The average temperature during the winter period was above the long-term mean. Vegetation resumed on April 4, when the average air temperature was above 5 ºC. The average precipitation from April to August was 316.5 mm and the average air temperature during this period was 14.1 ºC. The genetic characteristics of variety (F=175.64Fcrit=3.01) and fertilizer (F=160.73Fcrit=4.26) had a significant effect on yield. Spike length, spike weight and grain weight per spike were affected by fertilizer and genetic characteristics of variety (p is less than 0.05). The number of grains per spike was affected by genetic characteristics of variety (p is less than 0.05). A significant positive correlation was found between the number of grains per spike and the weight of the spike (r=0.946), grain weight per spike and length of the spike (r=0.995), grain weight per spike and the number of grains per spike (r=0.949).
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