Effects of Applying Different Doses of Selenite to Soil and Foliar at Different Growth Stage on Selenium Content and Yield of Different Oat Varieties

Shuangnan Hao; Panfeng Liu; Jie Qin; Lifang Song; Wude Yang; Meichen Feng; Meijun Zhang; Chao Wang; Xiaoyan Song

doi:10.3390/plants11141810

Effects of Applying Different Doses of Selenite to Soil and Foliar at Different Growth Stage on Selenium Content and Yield of Different Oat Varieties

Plants (Basel). 2022 Jul 8;11(14):1810. doi: 10.3390/plants11141810.

Authors

Shuangnan Hao¹, Panfeng Liu¹, Jie Qin¹, Lifang Song¹, Wude Yang¹, Meichen Feng¹, Meijun Zhang¹, Chao Wang¹, Xiaoyan Song¹

Affiliation

¹ College of Agricultural, Shanxi Agricultural University, No. 1, Mingxian South Road, Taigu District, Jinzhong 030810, China.

Abstract

(1) Background: With the increase in people's consumption of processed oat products, the production of selenium (Se)-enriched oat has become a possibility to supplement the human body with Se. Therefore, the effects of various factors on the Se-enriched ability and yield of different oat varieties were comprehensively studied. (2) Methods: cv."Pinyan 5" and cv."Bayou 18" were applied at the stem-elongation stage and heading stage in the Jinzhong (JZ), and cv."Bayou 1" and cv."Jinyan 18" were applied at the heading stage and flowering stage in the northwestern Shanxi (JXB) with different doses of Na₂SeO₃ (0, 5.48, 10.96, 21.92, 43.84, 65.76, 98.64, 0, 5.48, 10.96, 21.92, 43.84, 65.76, 98.64, 147.96 g hm^-2) by soil application and foliar spraying. (3) Results: The grain Se content and yield of oat were affected by the variety, Se application dose, stage and method of Se supplementation. Additionally, the Se content in oat grain was positively correlated with the Se application dose while the yield of oat first increased and then decreased with the Se application dose. (4) Conclusions: In the JZ and JXB, 21.92 g hm^-2 and 43.84 g hm^-2 Se was sprayed on the leaves of cv."Bayou 18" and cv."Bayou 1" at the heading stage, respectively, was the most effective Se biofortification program.

Keywords: oat; selenium content; sodium selenite; yield.

Grants and funding

The funder is the Science and Technology Department of Shanxi Province. This research was funded by THE KEY PROJECTS OF SHANXI PROVINCE’S KEY R&D PLAN(No 201703D211001-03).