Evaluation of Turkish durum wheat (Triticum turgidum var. durum) genotypes based on quantitative traits and shoot zinc accumulation under zinc-deficient calcareous soil

Iranian Journal of Plant Physiology

مقاله 3، دوره 8، شماره 4، آبان 2018، صفحه 2525-2537   

نوع مقاله: Original Article

شناسه دیجیتال (DOI): 10.30495/ijpp.2018.543415

نویسندگان

Ezatollah Esfandiari¹؛ Majid Abdoli^{* 2}؛ Behzad Sadeghzadeh³؛ Seyed-Bahman Mousavi⁴

¹Department of Plant Production and Genetics, Faculty of Agriculture, University of Maragheh, Maragheh, Iran

²Young Researchers and Elite Club, Zanjan Branch, Islamic Azad University, Zanjan, Iran

³Dryland Agricultural Research Institute, Agricultural Research, Education and Extension Organization, Maragheh, Iran

⁴Department of Soil Science, Faculty of Agriculture, University of Maragheh, Maragheh, Iran

چکیده

This experiment was carried out in a Zn-deficient calcareous soil to study the effects of Zn deficiency on shoot dry weight, shoot content, and concentration of Zn, and also to identify new sources of Zn efficiency for further improvement of Zn efficiency with (+Zn = application of 5 mg Zn/kg soil) and without Zn supply (-Zn = non-application of zinc) on 50 durum wheat genotypes for 45 days. Variance analysis for shoot dry matter, shoot Zn concentration, shoot Zn content, and Zn utilization efficiency revealed that these traits were significantly (P< 0.01) affected by Zn application and durum wheat genotypes. Results revealed that dry weight of shoot and shoot Zn accumulation were considerably improved by Zn fertilizers. Furthermore, there was a considerable genetic variation in the expression of Zn deficiency symptoms (slight to severe), Zn efficiency (49-100%), shoot Zn concentration (7.1-20.1 and 10.4-33.1 mg Zn/kg dry weight under Zn deficient and sufficient, respectively), shoot Zn content (0.31-1.47 and 0.7-2.9 µg/plant under Zn deficient and sufficient, respectively), and Zn utilizationefficiency (59.2-139.1 and 34.3-94.0 g dry weight/µg Zn under Zn deficient and sufficient, respectively) within durum wheat genotypes.In general, the presence of lines (AAZ, 4025, 45868, 45558 and Azarbayjan) with greater Zn efficiency than Zn efficient durum wheat cultivars (Ege-88, Aydin-93 and Akcakale-2000) indicates that the new lines can be used to improve current levels of Zn efficiency in durum wheat genotypes.

کلیدواژه‌ها

Breeding؛ durum wheat, genetic diversity, shoot dry matter, zinc efficiency