西北农业学报2025，Vol.34Issue(5)：808-816,9.DOI:10.7606/j.issn.1004-1389.2025.05.004
外源硒对谷子农艺性状及籽粒品质和叶酸含量的影响
Effects of Exogenous Selenium on Agronomic Traits,Seed Quality,and Folate Content of Foxtail Millet
摘要
Abstract
To investigate the effects of different concentrations of exogenous selenium on agronomic traits,grain quality and folate content of foxtail millet at the jointing,heading,and filling stages,this study aimed to clarify the optimal spraying amount of sodium selenite for foxtail millet and provide a theoretical basis and technical support for the breeding and cultivation of high-quality functional mil-let.Four foxtail millet varieties'Jinuomi2''Yugu18''Changsheng 13'and'Zhonggu 15'were used as experimental materials.A randomized block experiment in the fields was conducted,with five sele-nium treatments[0 g/hm2 Na2SeO3(T0),16 g/hm2 Na2SeO3(T1),32 g/hm2 Na2SeO3(T2),64 g/hm2 Na2SeO3(T3),128 g/hm2 Na2SeO3(T4)]at the jointing,heading,and filling stages to inves-tigate the effects of different selenium concentrations on agronomic traits,grain quality and folate content of foxtail millet.The results showed that the plant height,leaf area,stem diameter and spike traits(length below the internode,spike length and spike width)of the four foxtail millet varieties were significantly different from the control when different concentrations of exogenous selenium were applied to the leaf surface.Additionally,the thousand-seed mass of'Zhonggu 15'differed significant-ly from the control.With the increase in selenium content,the agronomic traits showed a trend of first increasing and then decreasing,reaching their peak values in the T2 and T3 treatments.Exogenous se-lenium increased the contents of protein,crude fat,crude fiber,and crude ash in the four foxtail mil-let varieties,with each nutrient component peaking at the selenium treatment concentrations of T2 and T3;the increase in crude fat content was the most pronounced.Compared with the control,the contents of methionine,tryptophan,threonine,isoleucine,and valine in the four foxtail millet varie-ties increased following selenium treatment,with amino acid content reaching its highest in the T2 and T3 treatments.The folic acid content of the four foxtail millet varieties significantly increased by 5.15％,6.50％,8.16％and 8.20％compared with the control,respectively,with the increase in fo-lic acid content of'Changsheng 13'and'Zhonggu 15'being higher than that of'Jinuomi 2'and'Yu-gu 18'.The appropriate concentration of exogenous selenium sprayed on the leaf surface significantly improves the agronomic traits,grain quality,and folic acid content of foxtail millet.The optimal con-centrations for foliar spraying of selenium are found to be 32 g/hm2 and 64 g/hm2 Na2SeO3.关键词
谷子/外源硒/农艺性状/籽粒品质/叶酸含量Key words
Foxtail millet/Exogenous selenium/Agronomic traits/Grain quality/Folic acid content引用本文复制引用
杨馥熔,杜冰,王成,郭浩杰,张富厚,孟超敏..外源硒对谷子农艺性状及籽粒品质和叶酸含量的影响[J].西北农业学报,2025,34(5):808-816,9.基金项目
河南省产业科技特派员项目(2018HNCYTPY01) （2018HNCYTPY01）
河南省旱地绿色智慧农业特色骨干学科群建设项目(17100001). Special Commissioner Project for Industry Science and Technology of Henan Prov-ince(No.2018HNCYTPY01) （17100001）
Construction Project of Characteristic Backbone Science Group for Dry Land Green Smart Agriculture of Henan Province(No.17100001). （No.17100001）
