黄花苜蓿耐牧性评价及其相关形态生理特性分析word格式论文.docxVIP

目录1引言................................................................11.1黄花苜蓿简介....................................................11.2苜蓿耐牧性研究现状..............................................11.3光合生理指标研究进展............................................21.4荧光生理指标研究进展............................................31.5研究目的与意义..................................................52材料与方法..........................................................62.1试验地概况......................................................62.2试验材料........................................................62.3放牧场建立......................................................62.4形态指标观测....................................................72.5生理指标观测方法................................................72.5.1Li-6400光合仪测定方法72.5.2叶绿素荧光合仪测定方法........................................72.6单株耐牧性评价方法..............................................82.6.1直观打分法....................................................82.6.2耐牧指标数值法................................................92.6.3最优序列分析法................................................92.6.4评价结果验证..................................................93结果与分析.........................................................103.1单株耐牧性评价结果.............................................103.1.1直观打分法分析...............................................103.1.2耐牧指标数值法...............................................113.1.3最优序列分析法...............................................113.1.4单株耐牧性评价结果验证.......................................143.2形态指标分析结果...............................................153.2.1黄花苜蓿耐牧性形态指标方差分析...............................153.2.2黄花苜蓿观测指标相关性分析...................................163.2.3黄花苜蓿观测指标通径分析.....................................173.3生理指标分析结果...............................................183.3.1耐牧性强弱植株光合生理指标方差分析...........................183.3.2耐牧性强弱植株光合生理指标通径分析...........................183.3.3不同观测期植株荧光数据方差分析...............................193.3.4不同观测期植株Fv/Fm和Fv/F0值变化203.3.5不同观测期植株qp和qn值变化213.3.6不同观测期植株Yield值变