Novel Sources of Variation in Grain Yield, Components and Mineral Traits Identified in Wheat Amphidiploids Derived from Thinopyrum bessarabicum (Savul. & Rayss) Á. Löve (Poaceae) under Saline Soils in India

Jaswant Singh Khokhar, Sindhu Sareen, Bhudeva Singh Tyagi, Lolita Wilson, Scott Young, Julie King, Ian King and Martin R. Broadley
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Jaswant Singh Khokhar: School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
Sindhu Sareen: Indian Institute of Wheat & Barley Research, Aggarsain Marg, Gahoon Vihar, Karnal, Haryana 132001, India
Bhudeva Singh Tyagi: Indian Institute of Wheat & Barley Research, Aggarsain Marg, Gahoon Vihar, Karnal, Haryana 132001, India
Lolita Wilson: School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
Scott Young: School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
Julie King: School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
Ian King: School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
Martin R. Broadley: School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK

Sustainability, 2020, vol. 12, issue 21, 1-17

Abstract: Salt-affected soils constrain wheat production globally. A wild wheat species, Thinopyrum bessarabicum (Savul. & Rayss) Á. Löve (Poaceae) , and its derivatives are tolerant of high external NaCl concentrations but have not been tested yet in field conditions. The aim of this study was to study the performance of amphidiploids derived from T. bessarabicum for grain yield (GYD), yield components and grain mineral composition traits under normal and saline soil conditions. Field experiments were conducted at Karnal (pH (water) = 7.3) and Hisar (pH (water) = 8.3) sites in 2014–2015 and 2015–2016 in India. Grain samples were analysed using inductively coupled plasma–mass spectrometry (ICP-MS). Yield and yield component traits of amphidiploids were typically greater at Karnal than Hisar. The GYD was greater at Karnal (1.6 t ha −1 ) than Hisar (1.2 t ha −1 ) in 2014–2015. However, GYD was greater at Hisar (1.7 t ha −1 ) than Karnal (1.1 t ha −1 ) in 2015–2016. Mean grain zinc (Zn) concentration of eight amphidiploids, averaged across sites and years, varied from 36 to 43 mg kg −1 . Some amphidiploids derived from T. bessarabicum showed greater GYD and grain Zn concentration under saline soils (Hisar) than normal soils (Karnal). These might be potential new sources for the development of salt-tolerant wheat varieties with increased grain Zn concentration under salt-affected soils.

Keywords: wild wheat; zinc; grain ionome; salinity (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
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