| Effects of combined foliar Zn application with triadimefon on Zn nutritional quality of winter wheat |
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| DOI：10.7606/j.issn.1000-7601.2017.04.05 |
| Key Words: foliar Zn triadimefon Zn concentration Zn bioavailability winter wheat Zn nutritional quality |
| Author Name | Affiliation | | LIU Ke | College of Natural Resources and Environment, Northwest A&F University/Key Lab of Plant nutrition and the Agri-Environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China | | ZHAO Ji-hong | College of Natural Resources and Environment, Northwest A&F University/Key Lab of Plant nutrition and the Agri-Environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China | | WANG Shao-xia | College of Natural Resources and Environment, Northwest A&F University/Key Lab of Plant nutrition and the Agri-Environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China | | Li Meng | College of Natural Resources and Environment, Northwest A&F University/Key Lab of Plant nutrition and the Agri-Environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China | | CHEN Yan-long | College of Natural Resources and Environment, Northwest A&F University/Key Lab of Plant nutrition and the Agri-Environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China | | TIAN Xiao-hong | College of Natural Resources and Environment, Northwest A&F University/Key Lab of Plant nutrition and the Agri-Environment in Northwest China, Ministry of Agriculture, Yangling, Shaanxi 712100, China |
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| Abstract: |
| To provide theoretical basis for an agronomic method for improving grain Zn nutritional quality while controlling wheat diseases and pests, this study was conducted to investigate the effect of foliar Zn combined with triadimefon on Zn content and bioavailability of winter wheat. A field experiment was conducted in Guanzhong Plain with four spray treatments (control, foliar Zn, foliar triadimefon, foliar Zn+triadimefon) during 2013—2014 winter wheat (Xiaoyan 22) growing seasons. Results showed foliar application treatments had no significant effects on thousand kernel weights, grain yield of wheat. Compared with the CK treatment, foliar triadimefon, foliar Zn and foliar Zn+ triadimefon significantly increased grain Zn concentration from 25.9 mg·kg-1 to 32.2, 52.4 mg·kg-1 and 52.7 mg·kg-1, with an average increasing range of 24%, 102%, and 103%, respectively. Foliar triadimefon, foliar Zn+triadimefon reduced grain phytic acid concentration by an average of 23.8% and 15.9%, respectively, P/Zn molar ratio was also significantly reduced under these two treatments. Combined foliar Zn application with triadimefon obviously improved grain Zn concentration and bioavailability, while it can also prevent and control winter wheat powdery mildew, stripe rust, etc. This research provides a scientific basis for effective combination of foliar Zn, pesticides and fungicides in production practice. |
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