不同品种(系)甜叶菊产量·光合生理和糖苷含量的相关性分析  

Correlation Analysis between Photosynthetic Physiology, Glycosidic Content and Yield of Different Varieties (Strains) of Stevia

作　　者：唐桃霞 王致和 张秀华 邱进栋 谢忠清 TANG Tao-xia;WANG Zhi-he;ZHANG Xiu-hua(Gansu Academy of Agri-engineering Technology,Wuwei,Gansu 733006;Key Laboratory of Germplasm Innovation and Safe utilization of Special Medicinal Plants in Gansu Province,Wuwei,Gansu 733006)

机构地区：[1]甘肃省农业工程技术研究院,甘肃武威733006 [2]甘肃省特种药源植物种质创新与安全利用重点实验室,甘肃武威733006

出　　处：《安徽农业科学》2019年第21期53-57,共5页Journal of Anhui Agricultural Sciences

基　　金：甘肃省重点研发计划“甜叶菊新品种选育及集约化生产关键技术研发与产业化”(17YF1NH051)

摘　　要：为探明甜叶菊农艺性状及产量与光合生理因子和糖苷品质之间的关系。对7个甜叶菊品种(系)的10个农艺性状、干叶产量、7个光合生理指标和5个糖苷品质进行比较和相关性分析。结果表明,干叶产量与单株干叶产量、单株鲜叶产量、一级分枝数呈极显著正相关,r分别为1.000、0.979、0.898,与其他农艺性状间的相关性均达显著水平;干叶产量与净光合速率、蒸腾速率呈极显著正相关,与气孔导度呈显著正相关,与胞间CO2浓度呈负相关,与叶绿素的相关性不显著;干叶产量与RA含量、总苷含量、RA/总苷呈正相关,与STV含量、RC含量呈负相关,但均未达显著水平,RA含量与STV含量呈极显著负相关(r=0.957);光合生理指标与糖苷含量的关系中,RC含量与胞间CO2浓度和叶绿素总量呈显著负相关,与其余指标相关性不显著;总苷含量与胞间CO2浓度呈极显著负相关,与其余指标相关性也不显著。该研究阐明了甜叶菊多种性状间的关系,旨在为河西地区甜叶菊育种和高产栽培提供参考。To explore the relationship between agronomic traits,yield,photosynthetic physiological factors and glycosidic quality of stevia,10 agronomic traits,dry leaf yield,7 photosynthetic physiological indexes and 5 glycosidic quality of 7 stevia varieties(strains)were studied.The results showed that the yield of dry leaves was significantly positively correlated with the yield per plant,the yield of fresh leaves and the number of primary branches,r were 1.000,0.979,0.898,respectively,and the correlation with other agronomic traits did not reach a significant level.The yield of dry leaves was significantly positively correlated with net photosynthetic rate and transpiration rate,significantly positively correlated with somatal conductance and negatively correlated with intercellular CO2 concentration,but not significantly correlated with chlorophyll.The yield of dry leaves was positively correlated with RA content,total glycosidic content,RA/total glycosidic,negatively correlated with STV content and RC content,but not significant levels,and RA content was extremely significantly negatively correlated with STV content(r=0.957);In the relationship between photosynthetic physiological indexes and glycosidic content,RC content was significantly negatively correlated with intercellular CO2 concentration and total chlorophyll content,but not significantly correlated with other indexes.The content of total glycosidic was significantly negatively correlated with intercellular CO2 concentration,and not significantly correlated with other indexes.The study clarified the relationship between stevia traits,which could provide reference for stevia breeding and high-yield cultivation in western region of the Yellow River.

关 键 词：甜叶菊 产量 农艺性状 光合生理 糖苷含量 

分 类 号：S566.901[农业科学—作物学]