南方农业学报2017，Vol.48Issue(1)：46-50,5.DOI:10.3969/j:issn.2095-1191.2017.01.46
外源施硒措施对水稻产量品质及植株硒分布的影响
Effects of exogenous selenium application on rice yield,quality, distribution of selenium in seedling
摘要
Abstract
[Objective]The present study researched effects of soil and foliar applications of selenium on rice yield,quality,distribution of selenium in seedling,in order to provide reference for selenium-enriched rice cultivation.[Method] BoⅢyou and Sanxiang 628 were taken as experiment materials.After soil and foliar applications of sodium selenite on two rice varieties,yield,quality,the content distribution of selenium in the two rice varieties were determined.[Result]Soil and foliar applications of selenium had no significant effect on rice biomass production and harvest index (P＞0.05),but they could increase rice grain protein content by 1.57％ and 2.36％ respectively.Significant difference on protein content was found between two varieties.Meanwhile,compared to control,soil application of selenium and foliar application of selenium significantly increased(P＜0.05) the selenium content in rice grain by 5.48 and 10.84 times respectively.For both varieties,selenium content in rice grain in foliar application was the higher than those in soil application and control.Furthermore,after soil application of selenium,Sanxiang 628 contained higher proportion of selenium retention in roots than BoⅢyou,while Sanxiang 628 contained lower distribution proportion in stem,leaf and grain than BoⅢyou.After foliar application of selenium,Sanxiang 628 contained higher proportion of selenium in leaf than BoyⅢyou,but Sanxiang 628 contained lower proportion of selenium in root,stem and grain than BoⅢyou.These data indicated that selenium distribution differences in grain and other parts of the two rice varieties might an important cause of differences in grain selenium content.[Conclusion]Agronomic measures like soil and foliar applications of selenium can regulate selenium accumulation in grain to a certain extent.In this way,selenium nutritional quality for people who eat rice as staple food can be improved.关键词
水稻/硒/产量/品质/分布特征Key words
rice/selenium/yield/quality/distribution feature分类
农业科技引用本文复制引用
陈雪,沈方科,梁欢婷,阳继辉,张宏旺,顾明华,韦燕燕..外源施硒措施对水稻产量品质及植株硒分布的影响[J].南方农业学报,2017,48(1):46-50,5.基金项目
广西自然科学基金项目(2015GXNSFBA139047) （2015GXNSFBA139047）
广西高校国家级大学生创新创业训练计划项目(141059329) （141059329）
