刈割时间和施肥对紫花苜蓿抗寒性影响的的研究

《刈割时间和施肥对紫花苜蓿抗寒性影响的的研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、Effectsof嗽andFertilizingontheColdResistanceofMedicagoSath,'aAbstractDuetotheproducfivi够problemsinthenorthofChina，the30alfalfawiththedifferentgradesinfalldormancyfromChinaandabroadwereselectedtoresearchtheinfluencesofcomponentfactorsofyieldcharacters，thelateautumncutting，andfertilizationonthecoldr

2、esistanceofalfaIfainsuburbexperimentalfieldinCAAS。Theresultswereshownasfollow．1mmainfactorthataffectedtheplantheight，theinternodeslengthandtheyield，wasregenerationrate，indicatingthatplantheight,intemodeslengthandtheyieldincreasedwiththeincreaseofregenerationrate2刊酶contentsofprolineandsolubleprote

3、ininrootwerehighlyrelatedtothecoldresistanceofalfalfacutin20伪Septemberinthefirstyeargrowing．mPODactivityinrootwashighlyrelatedtothecoldresistanceofaIfalfacutin5也October．3嗣瓣PODactivityhadhighlyrelationshipwiththecold-resistanceofalfalfacutinthelasttimeinthesecondyeargrowing．Atthesametime，itwasfoun

4、dthatthecriticalgrowingpedodofalfalfaWasfrom5mto20mNovemben4执variationofthefreeprotein,thesolubleprotein，thesolublesugarandthePODactivityinroothadnoeffectonthecoldresistanceofalfalfacutinthelasttimeinthethirdyeargrowing，whichshowedthatthealfalfainthethirdyearhadmorecold-resistanceandadaptabilityt

5、hanthatinthefirstandsecondyeargrowing。5嗣砖criticalpedodofthecoldresistanceforalfalfagrowingWasthemidofNovemberintheHuhhotregion．6n心fertilize／affectedthecontentsofsolubleproteinandthesolublesugarintherootofalfalfa。曩跫contentofsolubleproteininnon—fertilizertreatmentwas&gherthanfertilizertreatment．羽№c

6、ontentsofsolublesugarintreat2and3withhigherfertilizerwerehigherthanthatintreatl、^ritlllowerandnofertilizer．Theoptimalfertilizerwasbeneficialtoincreaseoftheoverwinterrateofalfalfa。Keywords：Alfalfa；Productioncharacters；Coldresistance；Lateautumncutting；FertilizerSupervisedby：WEIZhijun．．ApplicantforD

7、octorDegree：CHENLibo(GrasslandEcologyandManagement)(CollegeofEcologyandEnvironmentalScience,InnerMongoliaAgriculturalUniversity,Huhhot010018,China)内蒙古农业大学研究生学位论文独创声明本人孛明所呈交的学位论文是裁本人在导师指导下进行的研究工作及取得的研究成果．据我所知，除了文中特别加以标注