中国蔬菜Issue(4)：115-120,6.DOI:10.19928/j.cnki.1000-6346.2024.3018
不同浓度外源硒对魔芋球茎硒含量和营养指标的影响
Effects of Different Concentrations Exogenous Selenium Application on Selenium Content and Nutritional Indices of Konjac Bulbs
摘要
Abstract
In order to verify the selenium enrichment and selenium tolerance properties of flower konjac,amorphophallus albus and optimum line ZL-19 from their hybrid offspring;and effects of exogenous selenium on nutrients of Amorphophallus Rivieri corms,this paper carried out root irrigation test with different concentrations of sodium selenite(0,5,10,20,40 mg·kg-1)using potting method.The results showed that the highest selenium content in corms of different varieties(lines)were as following:Zl-19 was equivalent to amorphophallus albus(0.192 mg·kg-1),lower than that of flower konjac(0.265 mg·kg-1).In selenium tolerance:ZL-19＞amorphophallus albus＞flower konjac.While,in selenium enrichment capacity:flower konjac＞ZL-19＞amorphophallus albus.When the concentration of exogenous selenium in flower konjac was 10 mg·kg-1,the general performance of various nutritional indexes of the corms were comparatively excellent.And the corm fresh weight was increased by 13.13%.The contents of total sugar,reducing sugar,total protein,soluble protein and GSH-Px activity in corm were 71.265,27.019,50.811,17.605 mg·g-1 and 1.845 U·g-1,respectively.When the concentration of exogenous selenium in amorphophallus albus was 20 mg·kg-1,the general performance of various nutritional indexes of the corms were comparatively excellent.And the corm fresh weight was increased by 12.94%.The contents of total sugar,reducing sugar,total protein,soluble protein and GSH-Px activity in corms were 97.012,29.632,52.773,16.892 mg·g-1 and 1.642 U·g-1,respectively.Also when the concentration of exogenous selenium in ZL-19 was 20 mg·kg-1,the general performances of various nutritional indexes of the corms were comparatively excellent.The corm fresh weight was increased by 28.80%.The contents of total sugar,reducing sugar,total protein and soluble protein and GSH-Px activity in corms reached 84.717,31.819,49.402,17.709 mg·g-1 and 1.719 U·g-1,respectively.关键词
魔芋/亚硒酸钠/硒含量/营养指标Key words
konjac/sodium selenite/selenium content/nutritional index引用本文复制引用
蔡阳光,段龙飞,覃剑锋,周高新,唐晓东,徐聪,郭邦利..不同浓度外源硒对魔芋球茎硒含量和营养指标的影响[J].中国蔬菜,2024,(4):115-120,6.基金项目
陕西省重点研发计划项目(2023XCZX2-02,2023XCZX2-05),安康市"揭榜挂帅"重点科技项目(AK2023-JBGS-05),陕西省自然科学基础研究计划项目(2024JC-YBQN-0244) （2023XCZX2-02,2023XCZX2-05）
