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

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.

Using Chromosomal Abnormalities and Germination Traits for the Assessment of Tritipyrum Amphiploid Lines under Seed-Aging and Germination Priming Treatments

“…Primary Trans Chromosomal Tritipyrum (PTCT) lines, derived from the natural hybridization of Triticum aestivum L. and Thinopyrum bessarabicum, are recombinant chromosomal lines of hexaploid Tritipyrum, a new salt-tolerant species of cereal [5,6]. It was demonstrated that Tritipyrum lines could tolerate a salt concentration of about 250 mmol NaCl [7,8]. Thus, these novel amphiploid lines provide a new opportunity for producing grain and forage in saline soils and brackish waters in arid and semi-arid areas.…”

Nutritional and Phenolic Antioxidant Properties of Pakistani Wheat Varieties as Influenced by Planting Period and Variety

“…Usually, wheat grain kernel comprises minerals (1.8%), fat (2%), crude fiber (2.2%), water (12%), protein (12%) and carbohydrates (70%), respectively. Furthermore, wheat grain kernel is considered to be a potential source of minerals, comprising potassium, manganese, copper, magnesium, selenium, iron, zinc and phosphorus (Khokhar et al, 2020). Wheat is enriched with the extensive range of bioactive compounds, containing alkylresorcinols (AR) (99.9-316.0 μg/g), phenolic acids (136.8-233.9 μg/g), tocols (19.3-292.7 μg/g) and phytosterols (562.6-1035.5 μg/g) (Lin, Liu, Yu, Lin, & Mau, 2009).…”