Study of genetic diversity in different wheat species with various genomes based on morphological characteristics and zinc use efficiency under two zinc-deficient growing conditions
| Autor: | Ezatollah Esfandiari, Majid Abdoli, Behzad Sadeghzadeh, Seyed-Bahman Mousavi, Aliasghar Aliloo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
010504 meteorology & atmospheric sciences
bread wheat Biofortification chemistry.chemical_element Zinc 01 natural sciences zinc concentration biofortification lcsh:Agriculture Zinc deficiency (plant disorder) 0103 physical sciences zinc deficiency Dry matter Cultivar Plant breeding 010303 astronomy & astrophysics 0105 earth and related environmental sciences Water Science and Technology Chemistry zinc efficiency lcsh:S durum wheat Horticulture Shoot General Agricultural and Biological Sciences Calcareous |
| Zdroj: | Acta Agriculturae Slovenica, Vol 113, Iss 1, Pp 147-161 (2019) |
| ISSN: | 1854-1941 1581-9175 |
| Popis: | Screening of cash crops to tolerate and grow under low levels of micronutrients is important issue in the plant breeding programs. Thus, the study screened the tolerance of 50 wheat genotypes to zinc (Zn) deficiency in the calcareous soil. The Zn treatment was carried out with application of 5 mg kg-1 (+Zn) and without (-Zn) to the collected soils with initial Zn extractable of 0.5 mg Zn kg-1 soil. The results revealed that the supplementary application significantly increased shoot dry matter, shoot Zn concentration and shoot Zn content compared to the without Zn application (control), but Zn utilization decreased under Zn application. There was considerable genetic variation in Zn efficiency (55 - 118 %), shoot Zn concentration (11.8 - 27.0 and 14.3 - 39.6 mg kg-1 DM under deficient and sufficient Zn, respectively), shoot Zn content (0.56 - 2.02 and 0.90 - 2.83 µg plant-1, under deficient and sufficient Zn, respectively) and Zn utilization efficiency (39 - 87.2 and 31.2 - 71.5 mg DM µg-1 Zn under deficient and sufficient Zn, respectively) within wheat genotypes. Cluster analysis based on Zn efficiency, and shoot dry matter at deficient and adequate Zn conditions classified the genotypes into four clusters. Over the two conditions, the most Zn-efficient and Zn-unefficient genotypes were ‘Ankara-98’ and ‘Altintoprak-98’ and ‘Pg"S’ and ‘Zarin’, respectively. Most durum genotypes had a greater Zn efficiency than modern bread wheat genotypes, therefore these genotypes could be effectively used to breed the new cultivars with high Zn efficiency for calcareous soils. |
| Databáze: | OpenAIRE |
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