Performance of Biofortified Spring Wheat Genotypes for Grain Zinc and Iron Concentrations, Grain Yield and Associated Traits in Terai/plains of Nepal

作者：Khem Raj Pant, Deepak Pandey, Rajendra Yadav, Nutan Raj Gautam, Anjal Nainabasti, Dhruba Bahadur Thapa, Shesh Raman Upadhyay · 发表于：International Journal of Plant & Soil Science · 年份：2024 · DOI：10.9734/ijpss/2024/v36i84850 · 被引用次数：2 · 研究领域：Plant Micronutrient Interactions and Effects、Agricultural Science and Fertilization、Crop Yield and Soil Fertility

Breeding for nutrient-rich high yielding wheat varieties is one of the most economical and feasible ways to improve micronutrient deficiency ad hoc building better consumer health among the rural people of South Asia. To identify the Zinc (Zn) and Iron (Fe) enriched high yielding wheat genotypes, 7th Harvest Plus Yield Trial (7th HPYT) and 8th Harvest Plus Yield Trial (8th HPYT) both composed of 50 genotypes (including two CIMMYT checks " Kachu#1" and "Baj#1" and one Local Check "Gautam") were evaluated in alpha lattice design with 2 replications under timely sown irrigated condition at NWRP, Bhairahawa during 2016/17 and 2017/18. The grain Zn concentration and Fe concentration varies among genotypes from 23.8 to 42.4 ppm and 20.6 to 60.6 ppm, respectively. The highly significant positive correlation was found between grain zinc and iron concentration (r = 0.74** in 7th HPYT and r=0.67** in 8th HPYT). This highly positive significant relation between grain Zn and grain Fe indicates that it is feasible to simultaneously improve both micronutrients. In addition, this study reveals that thousand grains weight (TGW) has shown highly significant positive correlation (r = 0.3) with grain zinc and (r=0.4) with grain iron in 7th HPYT to non-significant negative correlation (r = -0.1) with grain zinc and (r=-0.1) with grain iron in 8th HPYT. As Nepali farmers major trait of interest second to grain yield is TGW, this showed that Zn and Fe enriched wheat varieties with higher TGW (bold...