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Impact of Weather Conditions and Farming Systems on Size Distribution of Starch Granules and Flour Yield of Winter Wheat

Keres, Indrek; Alaru, Maarika; Talgre, Liina; Luik, Anne; Eremeev, Viacheslav; Sats, Andres; Jõudu, Ivi; Riisalu, Anu and Loit, Evelin (2020) Impact of Weather Conditions and Farming Systems on Size Distribution of Starch Granules and Flour Yield of Winter Wheat. Agriculture, 2020 (10), pp. 1-11.

[thumbnail of Keres et al 2020.pdf] PDF - Published Version - English

Document available online at: https://www.mdpi.com/2077-0472/10/1/22


The size distribution of wheat-grain starch granules has an impact on the yield of finne flour. The aim of the study was to compare the impact of conventional (mineral fertilizers, pesticides) and organic farming treatments (cover crops, composted cattle manure) on (i) the size distribution of starch granules, (ii) the level of the first break whole and fine flour yield. The grain samples of winter wheat cv Fredis were taken from a long-term field crop rotation experiment established in 2008 at the Estonian University of Life Sciences in Tartu County (58°22′ N, 26°40′ E) on Stagnic Luvisol soil. The weather conditions during the grain filling period of winter wheat had a strong impact (p < 0.001) on the grain starch granule size distribution. The proportion of starch granules with a smaller diameter (C-type granules) was higher in years with a longer grain filling period. The size distribution of starch granules was not influenced by farming system. The increased proportion of C-type granules increased the fine flour yield significantly. Fertilisation with organic manure and twice with mineral nitrogen increased significantly the mean diameter value of different starch granules.

EPrint Type:Journal paper
Keywords:organic; conventional farming; whole; fine flour yield
Subjects: Food systems > Food security, food quality and human health
Farming Systems > Farm nutrient management
Research affiliation: Estonia > Estonian University of Life Sciences
European Union > CORE Organic > CORE Organic II > TILMAN-ORG
European Union > Other projects, departments, etc.
Horizon Europe or H2020 Grant Agreement Number:810630, 618107
Deposited By: Peetsmann, Ms Elen
ID Code:37830
Deposited On:01 Apr 2020 10:11
Last Modified:02 Apr 2020 08:50
Document Language:English
Refereed:Peer-reviewed and accepted

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