草业学报2016，Vol.25Issue(9)：189-196,8.DOI:10.11686/cyxb2015544
不同产地藿香花粉活力与柱头可授性研究
Study of the pollen viability and stigma receptivity of Agastache rugosa from different areas
摘要
Abstract
A study was undertaken to explore the pollen viability,stigma receptivity and pollen morphology of Agastache rugosa from different areas.Pollen viability was evaluated by red ink method;stigma receptivity was evaluated by benzidine-H2 O2 method;pollen morphology was observed by scanning electron microscopy. The results showed that,the flowering habit was identical in the different areas under natural conditions.The majority of A.rugosa bloomed from July to August;the flowering stage of the populations was approximately 15-28 days and the life span of a single flower was about 3 -5 days.The pollen viability of A.rugosa from different areas showed at first an increased and then a decreased trend with the increase of blooming time,with average pollen viability ranging between 18.46% and 26.52%.Among the five areas,the highest average pol-len viability was from Chengdu and the lowest from Jilin.The life span of pollen was 4-5 days while stigma receptivity continued for 5-6 days.The stigma of A.rugosa from different areas had receptivity in the first day of blooming and higher receptivity in 2-3 days.This result indicated that the optimum artificial pollination time of different sources of A.rugosa is 2-3 days after blooming.The pollen shapes of A.rugosa from differ-ent areas were mainly spheroid and subglobose.The pollen size ranged between 42.93 μm ×31.99 μm and 46.59 μm×37.67 μm.With 6 germinal furrows,the shape was long and narrow,almost reaching the poles. The surface emblazonry was netting and the shapes of pollen mesh were mostly irregular polygons to nearly round.These results provided a theoretical basis for the artificial cultivation and elite breeding of A.rugosa in the future.关键词
藿香/花粉活力/柱头可授性/花粉形态Key words
Agastache rugosa/pollen viability/stigma receptivity/pollen morphology引用本文复制引用
苏芸芸,王康才,薛启..不同产地藿香花粉活力与柱头可授性研究[J].草业学报,2016,25(9):189-196,8.基金项目
工信部藿香规范化与规模化生产基地建设项目（2014）资助。 （）
