摘要
为实现野生种质的育种应用,筛选出适宜作为亲本的杜鹃花种类。本研究以4个常绿杜鹃亚属野生种(大白杜鹃、宽杯杜鹃、蓝果杜鹃和黄杯杜鹃)为父本与17个常绿杜鹃花品种杂交所获得的种子为试验材料,研究各杂交种子的形态特征、种子发芽率、种子发芽势、种子发芽指数和种子平均发芽时间等,以期对各种类作为父本应用的杂交优势性进行评价。结果表明:外形饱满、两端有翅的纺锤形瘦长种子更易于萌发,4个常绿杜鹃亚属野生种作为父本的优势性依次为:大白杜鹃>宽杯杜鹃>蓝果杜鹃>黄杯杜鹃。
The paper aims to realize the breeding application of wild germplasm,select Rhododendron species which are suitable for parents.Taking 4 wild species of subgenus Rhododendron(Rhododendron decorum,Rhododendron sinofalconeri,Rhododendron.cyanocarpum,Rhododendron wardiit)as male parents and seeds obtained from hybridization with 17 varieties of Rhododendron as experimental materials,we studied the morphological characteristics,the germination rate,the germination potential,the germination index and the average germination time of hybrid seeds,in order to evaluate the hybrid advantages of the 4 wild species as male parents.The results show that spindle-shaped and slender seeds with full shape and wings at both ends are easy to germinate,and the superiority of the 4 wild species of subgenus Rhododendron as male parents is Rhododendron decorum>Rhododendron sinofalconeri>Rhododendron.cyanocarpum>Rhododendron wardiit.
作者
许凤
宋杰
张艺萍
张宝琼
杨秀梅
张丽芳
王丽花
解玮佳
Xu Feng;Song Jie;Zhang Yiping;Zhang Baoqiong;Yang Xiumei;Zhang Lifang;Wang Lihua;Xie Weijia(Flower Research Institute,Yunnan Academy of Agricultural Sciences,Kunming 650200;National Engineering Research Center for Ornamental Horticulture,Kunming 650200;Key Lab of Yunnan Flower Breeding,Kunming 650200;Yunnan Agricultural University,Kunming 650500)
出处
《中国农学通报》
2020年第14期64-68,共5页
Chinese Agricultural Science Bulletin
基金
国家自然科学基金项目“马缨杜鹃杂交胚胎发育/败育的差异发育机理研究”(31560225)
云南省科技计划项目“云南主要花卉品种选育与高效繁育技术研发”(2018BB010)
科技人才和平台计划“云南省技术创新人才培养配套项目”(2018HB082)
云南省科技创新人才计划“科技领军人才培养项目”(2016HA005)。
关键词
杜鹃
杂交种子
萌发特性
父本
优势
Rhododendron
hybrid seeds
germination characteristics
male parent
advantages
