锡金报春和心愿报春种子萌发生物学特性研究  

A Study of Biological Characteristics of Seed Germination of Primula sikkimensis and Primula optata

作　　者：蔡蕾[1] 姚敏莲 姬慧娟[1] 易培军[1] 李大明[1] 

机构地区：[1]四川省林业科学研究院,四川成都610081 [2]壤塘县环保和林业局,四川壤塘624300

出　　处：《四川林业科技》2016年第3期103-106,共4页Journal of Sichuan Forestry Science and Technology

基　　金：基金项目:川西高山东缘报春花属植物种质资源调查与收集研究(JB2015-25)

摘　　要：通过种子萌发试验,研究了温度、GA_3、储藏时间和储藏方式等因子对x锡金报春和心愿报春种子萌发的影响。结果表明:两种报春花种子萌发率随温度的升高而增加,25℃/15℃时发芽率最高;GA_3处理两种报春花种子时5 mg·L^(-1)处理的效果最好;不同储藏方式对锡金报春和心愿报春的发芽率影响不显著,但随着储藏时间的增长,种子的发芽率也逐渐降低,且心愿报春降低的幅度大于锡金报春。生产上建议锡金报春在采后30d内播种,心愿报春采用随采随播的方式进行播种。Researches were conducted on the effects of temperature, GA3, storage time and ways on the seed germination of P. sikkimensis and P. optata through seeds germination experiment. The tesuhs showed that the optimal temperature for germination was 25℃/15℃ and the best effect of GA3concentra- tion was 5 mg· L^-1 ;Different storage ways had little effect on the seed germination rate. And yet the seed germination rate would decrease along with the increase of the storage time. Besides, the decrease range of P. optata was more than that of P. sikkimensis. Suggestions were offered that seeds of P. sikkimensis should be sowed in no more than 30 days after seed collection, and P. optata should be sowed right after being harvested in practice.

关 键 词：锡金报春 心愿报春 种子 发芽率 

分 类 号：S682.15[农业科学—观赏园艺]