Abstract
AbstractMicronutrients are essential for plant growth although required in only very small amounts. There are eight micronutrients needed for healthy growth of wheat: chlorine, iron, boron, manganese, zinc, copper, nickel and molybdenum. Several factors will influence the availability of micronutrients, including levels in the soil, and mobility or availability. Zinc deficiency is the most significant problem globally followed by boron, molybdenum, copper, manganese and iron. Deficiency is usually addressed through application of nutrients to seeds, or through foliar spays when symptoms develop. There is considerable genetic variation in the efficiency of micronutrient uptake in wheat, but this is not a major selection target for breeding programs given the agronomic solutions. However, for some micronutrients, the concentrations in the soil can be very high and result in toxicity. Of the micronutrients, the narrowest range between deficiency and toxicity is for boron and toxicity is a significant problem in some regions. Although not a micronutrient, aluminium toxicity is also a major factor limiting yield in many areas, usually associated with a low soil pH. Agronomic solutions for boron and aluminium toxicity are difficult and expensive. Consequently, genetic approaches have dominated the strategies for addressing toxicity and good sources of tolerance are available.
Funder
International Maize and Wheat Improvement Center
Bill and Melinda Gates Foundation
Publisher
Springer International Publishing
Reference39 articles.
1. Tripathi DK, Singh S, Singh S, Mishra S, Chauhan DK, Dubey NK (2015) Micronutrients and their diverse role in agricultural crops: advances and future prospective. Acta Physiol Plant 37:139. https://doi.org/10.1007/s11738-015-1870-3
2. Simoglou KB, Dordas C (2006) Effect of foliar applied boron, manganese and zinc on tan spot in winter durum wheat. Crop Prot 25:657–663. https://doi.org/10.1016/j.cropro.2005.09.007
3. Graham RD, Webb MJ (1991) Micronutrients and disease resistance and tolerance in plants. In: Micronutrients in agriculture. John Wiley & Sons, Ltd, pp 329–370
4. Attwell B, Kriedemann P, Turnbull C (1999) Plants in action Australian Society of Plant Scientists. Macmillan Education, Melbourne
5. IFPRI (2019) Global spatially-disaggregated crop production statistics data for 2010 version 2.0. In: Int. food policy res. Institute, Harvard Dataverse V4. https://doi.org/10.7910/DVN/PRFF8V
Cited by
9 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献