大气CO_2浓度升高对绿豆生长发育与产量的影响  

EFFECTS OF AIR CO_2 ENRICHMENT ON GROWTH AND YIELD OF MUNG BEAN

作　　者：李萍[1] 郝兴宇[1,2] 杨宏斌[1] 林而达[2] 

机构地区：[1]山西农业大学农学院,山西太谷030801 [2]中国农业科学院农业环境与可持续发展研究所/农业部农业环境与气候变化重点实验室,北京100081

出　　处：《核农学报》2011年第2期358-362,396,共6页Journal of Nuclear Agricultural Sciences

基　　金：中澳政府气候变化合作项目(00xx-0506-Norton);国家科技支撑计划课题(2007BAC03A06);农业部农业环境与气候变化重点开放实验室开放基金项目

摘　　要：研究大气CO2浓度升高对绿豆影响,有助于人们了解未来气候变化后绿豆生产的变化,以提前采取必要的应对措施趋利避害。本研究利用FACE(Free Air CO2 Enrichment)系统在大田条件进行了绿豆生长发育及产量受CO2浓度升高影响的试验。结果表明:大气CO2浓度升高后,绿豆叶面积、株高、节数、茎粗增加;倒数第一完全展开叶叶面积增加6.1%～34.65%,倒数第二完全展开叶叶面积增加4.45%～43.64%;收获期,绿豆株高、节数、茎粗分别增加19.56%、8.24%、9.71%;绿豆叶片叶绿素含量则有下降的趋势,蕾期和花荚期,倒数第一片完全展开的叶片叶绿素含量分别下降1.53%、14.21%,花荚期,倒数第二片完全展开的叶片叶绿素含量下降7.06%;收获后单株地上部分生物量增加24.45%,单株籽粒产量增加13.87%,而收获指数则有下降趋势;产量的提高是由于单株有效荚数显著增加,而单荚粒数和百粒重变化不显著。未来大气CO2浓度升高将促进绿豆的生长发育,使绿豆地上部分生物量和产量增加。Research on mung bean response to elevated [CO2]will benefit to learn about changes of mung bean yield under future climate change and possible corresponding measures.FACE（Free air CO2 enrichment） was used in the study of mung bean.Results showed that the leaf area,height,node number and stem diameter increased with elevation of [CO2.] Elevated [CO2]increased the youngest expanded leaf and the reciprocal 2nd expanded leaf area by 6.1% ～ 34.65% and 4.45% ～ 43.64%,respectively.Elevated [CO2 ]significantly increased the height,node number and stem diameter at mature by 19.56%,8.24% and 9.71%,respectively.However,the content of chlorophyll in leaf decreased with elevation of [CO2.] Elevated [CO2 ]significantly reduced the content of chlorophyll in the youngest expanded leaf at bud stage and flowering-podding stage by 1.53% and 14.21%,respectively.The content of chlorophyll in reciprocal 2nd expanded leaf decreased by 7.06% at the flavering-podding stage with elevated [CO2.] The above-ground biomass weight per plant was increased by 24.45% with elevation of [CO2.] Because of the increase in pod number per plant,the yield per plant was increased by 13.87% in FACE,but the harvest index was descent.Elevation of [CO2 ]will stimulate the growth of mung bean.The above-ground biomass weight and the yield were promoted with elevation of [CO2].

关 键 词：绿豆 CO2浓度升高 FACE 气候变化 生长 产量 

分 类 号：S522[农业科学—作物学]