| Difference of Fe content of wheat seed between high-Fe genotypes and low-Fe ones and its relation to agronomic characteristics |
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| DOI：10.7606/j.issn.1000-7601.2010.03.20 |
| Key Words: wheat genotype seed Fe agronomic characteristics |
| Author Name | Affiliation | | ZHAO Junxia | College of Resources and Environmental Science, Northwest A & F University, Yangling, Shaanxi 712100, China
Key Lab for Agricultural Resources and Environmental Remediation in Loess Plateau of Agriculture Ministry of China, Yangling, Shaanxi 712100, China
Shaanxi Xianyang Insitute of Environment Sciences, Xianyang, Shaanxi 712000, China | | QIAO Xianhua | College of Resources and Environmental Science, Northwest A & F University, Yangling, Shaanxi 712100, China
Key Lab for Agricultural Resources and Environmental Remediation in Loess Plateau of Agriculture Ministry of China, Yangling, Shaanxi 712100, China | | ZHANG Pingping | College of Resources and Environmental Science, Northwest A & F University, Yangling, Shaanxi 712100, China
Key Lab for Agricultural Resources and Environmental Remediation in Loess Plateau of Agriculture Ministry of China, Yangling, Shaanxi 712100, China | | CHEN Jianmei | Shaanxi Fengxiang Horticulture Station, Fengxiang, Shaanxi 721400，China | | CAO Yajun | College of Resources and Environmental Science, Northwest A & F University, Yangling, Shaanxi 712100, China
Key Lab for Agricultural Resources and Environmental Remediation in Loess Plateau of Agriculture Ministry of China, Yangling, Shaanxi 712100, China |
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| Abstract: |
| A pot experiment was conducted to screen Fe content in wheat seeds among 35 genotypes and to investi-gate the difference of agronomic characteristics of various genotypes and the relationship between economic characteristics and Fe content of wheat seed. The results showed that significant difference of Fe content in wheat seeds was found a-mong 35 genotypes, ranging from 30.5 mg/kg to 43.4 mg/kg (Fe fertilizer treatments) and 22.6 mg/kg to 40.9 mg/kg(No Fe fertilizer treatments). Fe fertilizer treatment trended to increase Fe content. There were differences between high-Fe enotypes and low-Fe genotypes in yield, biomass and other agronomic characteristics. These differences depended on Fe fertilizer. When Fe fertilizer was applied, less wheat yield of high-Fe genotype was found, compared to low-Fe geno-types . High-Fe genotypes also had less grain number per spike, 1000- grain- weight, plant height and tillers, compared to low-Fe genotypes. There was no remarkable correlation between wheat seed Fe content and yield, stem biomass, glume biomass, harvest index and grain number per spike while there was significant negative correlation between wheat seed Fe content and 1000-grain-weight. Fe accumulated in wheat seeds had significant positive correlation to stem biomass, glume biomass and grain number per spike, but no correlation to 1000-grain-weight. |
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