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时间:2020-04-16
《钾肥对菜用大豆生殖生长期叶片叶绿素含量的影响-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第31卷第6期大豆科学Vo1.3lNo.62012往12月SOYBEANSCIENCEDec.2012钾肥对菜用大豆生殖生长期叶片叶绿素含量的影响杜明,李彦生。,张秋英,谷思玉,刘晓冰(1.中国科学院东北地理与农业生态研究所黑土区农业生态重点实验室,黑龙江哈尔滨150081;2.东北农业大学资源与环境学院,黑龙江哈尔滨150030;3.中国科学院研究生院,北京100049)摘要:以2个菜用大豆为材料,在正常氮磷肥基础上,设置4个水平钾肥施用量作为种肥,并分别在大豆开花期和结荚期喷施30·hmK:s0,研究了钾肥对菜用大豆叶片叶绿素含量的影响。结果表明:钾肥作种肥
2、能显著增加生殖生长期菜用大豆叶片叶绿素含量,2个品种叶绿素总含量均在钾肥施用量120kg·hmI2时最高。与不施钾肥处理相比,在盛花期、结荚期和鼓粒期,中科毛豆1号叶绿素总含量分别增加9.1%、22.7%和13.0%,品系121分别增加33.3%、17.4%和13.0%。钾肥施用量120kg·hm时,结荚期叶绿素a含量明显增加,并显著提高了叶绿素a/b比值。叶面喷施K:s0能显著提高菜用大豆叶绿素总量。相同种肥水平下,叶喷钾肥总体上明显增加开花期和结荚期的叶绿素含量,叶绿素a含量,但对鼓粒期叶绿素含量无显著影响。关键词:菜用大豆;结荚期;叶绿素a;叶绿素b;钾肥
3、中图分类号:$643.7文献标识码:A文章编号:1000-9841(2012)06-0941-06EfectsofPotassiumFertilizeronChlorophyllContentofVegetableSoybeaninReproductiveStagesDUMing’,LIYan—sheng’,ZHANGQiu—ying,GUSi—yu,LIUXiao-bing。(1.KeyLaboratoryofMollisolsAgroecology,NortheastInstituteofGeographyandAgroecology,ChineseAcad
4、emyofSciences,Harbin150081,Hei-longjiang;2.CollegeofResourcesandEnvironment,NortheastAgricuhuralUniversity,Harbin150030,Heilongjiang;3.GraduateUniversityoftheChineseAcademyofSciences,Beijing100049,China)Abstract:Theeffectsoffourpotassiumfertilizeramounts(0,60,120,180kg·ha)withadditio
5、nalfoliarapplicationof30kg‘ha~potassiumatflowering—poddingonchlorophyllcontentinvegetablesoybeanwereinvestigatedundernormalNandPfertilizersapplication.Thoughresponseddiferincultivars,potassiumapplicationatseedingsignificantlyincreasedthechlo—rophyllcontentduringreproductivegrowthperi
6、od.MaximumchlorophyllcontentswereaIlobtainedat120kg·haK2S04inC/).ZhongkemaodouNo.1andlineNo.121.Comparedwithcontro1.thechlorophyllcontentsofc口.ZhongkemaodouNo.1atflowering,pod—settingandseedfillingof120kg·ha~K2SO4wereincreasedby9.1%,22.7%and13.0%;whilelineNo.121wereincreasedby33.3%,1
7、7.4%and13.O%,respectively.Theincreaseinchlorophyllcontentof120kg·ha—K2SO4atsee—dingwasmostlyduetotheincreaseincontentofchlorophylla.andthusanincreaseinchlorophylla/bratio.Theincreasesinchlorophyllcontentbyadditionalfoliarapplicationofpotassiumvariedincuhivarsandgrowthstages.Theincrea
8、sedyieldbypo
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