天美影院

Abstract

Salt-affected soils constrain wheat production globally. A wild wheat species, Thinopyrum bessarabicum (Savul. & Rayss) 脕. L枚ve (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鈥�2015 and 2015鈥�2016 in India. Grain samples were analysed using inductively coupled plasma鈥搈ass 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鈭�1) than Hisar (1.2 t ha鈭�1) in 2014鈥�2015. However, GYD was greater at Hisar (1.7 t ha鈭�1) than Karnal (1.1 t ha鈭�1) in 2015鈥�2016. Mean grain zinc (Zn) concentration of eight amphidiploids, averaged across sites and years, varied from 36 to 43 mg kg鈭�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.

This is a publication arising from the Sustainable Crop production for International Development (SCPRID) programme

Citation

Khokhar J, Sareen S, Tyagi B, Wilson L, Young S, King J, King I, Broadley M (2020). Novel sources of variation in grain yield, components and mineral traits identified in wheat amphidiploids derived from Thinopyrum bessarabicum (Savul. & Rayss) 脕. L枚ve (Poaceae) under saline soils in India. Sustainability. 12:8975.

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