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Effect of irrigation, fertiliser type and variety on grain yield and nutritional quality of spelt wheat (Triticum spelta) grown under semi-arid conditions
Journal article   Peer reviewed

Effect of irrigation, fertiliser type and variety on grain yield and nutritional quality of spelt wheat (Triticum spelta) grown under semi-arid conditions

Juan Wang, Marcin Barański, Gultakin Hasanaliyeva, Recep Korkut, Hassan Ashraa Kalee, Alice Leifert, Sarah Winter, Dagmar Janovska, Adam Willson, Bronwyn Barkla, …
Food Chemistry, Vol.358, 129826
20/04/2021
DOI: https://doi.org/10.1016/j.foodchem.2021.129826
PMID: 33933964
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Effect of irrigation, fertiliser type and variety on grain yield and nutritional quality of spelt wheat (Triticum spelta) grown under semi-arid conditionsView
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Abstract

Antioxidants Irrigation Nutritional quality Spelt wheat varieties Fertilisation Grain yield Mineral micronutrients Phenolics
Previous studies reported higher antioxidant and mineral micronutrient concentrations in organic compared to conventional wheat flour, but the reasons are poorly understood. Here we report results from a long-term, factorial field experiment designed to assess effects of variety choice, supplementary irrigation and contrasting fertilization regimes used in organic and conventional production on the nutritional quality and yield of spelt wheat grown in a semi-arid environment. Long-straw (Oberkulmer, Rubiota, ZOR) varieties had 10-40% higher grain Cu, Fe, Mn and Zn concentrations, while the modern, short straw variety Filderstolz had 15-38% higher grain antioxidant activity. Supplementary irrigation and the use of manure instead of mineral NPK as fertilizer had no substantial effect on the nutritional composition of spelt grain, but increased grain yields by ~ 150 and ~ 18% respectively. Overall, this suggests that breeding/variety selection is the most promising approach to improve the nutritional quality of spelt grain in semi-arid production environments.

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