广西植物Issue(6)：769-773,768,6.DOI:10.3969/j.issn.1000-3142.2013.06.009
位置效应对巫山淫羊藿花蜜分泌和结实的影响
Effects of position on nectar secretion and fruit set of Epimedium wushanense
摘要
Abstract
Position effect is a common phenomenon in flowering plant.In this experiment,we studied the position effect within inflorescence in Epimedium wushanense and researched the effects of different positions on reproductive success as well as nectar secretion using One-way ANOVA .The results indicated that the fruit set of E.wushanense was influenced by the different positions significantly.Among the three different positions,the fruit set of base fruit was significantly higher than that of top and middle fruit.Among these three positions of inflorescence,differences in fruit weight,fruit length and breadth were all significant,and for all base>middle>top.The seed number per fruit was influenced significantly by different positions of raceme,and base fruit have more seeds than top fruit.While the differences of the rate of seed abortion per fruit in different positions were not significant,though mean value showed top>middle>base.Nectar standing crop and sugar content were influenced by position significantly.In these three populations,the nectar standing crop in base flowers was higher than that in other positions,but the sugar content of nectar was higher in top flowers.Therefore,in order to protect diversity and stability of E.wushanense populations, we should pay attention to influence on reproductive success caused by position effect,study and protect wild popula-tions of E.wushanense.Meanwhile,we should choose base fruits for experiments and breeding.关键词
巫山淫羊藿/位置效应/结实/花蜜分泌Key words
Epimedium wushanense/position effect/fruit set/nectar secretion分类
农业科技引用本文复制引用
王怡,黎云祥,高辉,权秋梅..位置效应对巫山淫羊藿花蜜分泌和结实的影响[J].广西植物,2013,(6):769-773,768,6.基金项目
四川省科技厅应用基础研究项目(2008JY01580) （2008JY01580）
重点实验室开放基金(XNYB09-04) （XNYB09-04）
