山桐子种子萌发技术试验  

Seed Germination Technology of Idesia polycarpa

作　　者：陈耀兵 CHEN Yao-bing(Hubei University for Nationalities,Enshi 445000,Hubei,China)

机构地区：[1]湖北民族学院,湖北恩施445000

出　　处：《湖北农业科学》2018年第16期75-78,共4页Hubei Agricultural Sciences

摘　　要：选取来自利川市的4类山桐子(Idesia polycarpa Maxim.)种子,包括野生本地红果类型、栽培黄果类型、嫁接红果类型和栽培红果类型,进行不同浸种处理(自来水浸泡、10.5 mmol/L的KH2PO4溶液浸泡、20%洗衣粉溶液浸泡、10%肥皂溶液浸泡和20%洗洁精溶液浸泡),分析了不同浸种时间、浸种温度以及催芽温度处理对4类山桐子种子萌发的影响。结果表明,经20%洗洁精溶液浸种24 h,且浸种温度为30℃、催芽温度为25℃,各类型山桐子种子(野生本地红果类型、栽培黄果类型、嫁接红果类型和栽培红果类型)的发芽率分别为97.3%、95.1%、96.2%、97.3%,发芽势分别为68.1%、67.7%、65.8%、66.1%,均明显高于其他处理,尤其是显著高于自来水浸种处理;其中经20%洗洁精溶液浸种24 h、浸种温度为30℃、催芽温度为25℃的处理能有效促进山桐子种子萌发,值得在生产实践中推广应用。Four types seeds of Idesia polycarpa Maxim.from Lichuan city,including wild red fruit type,cultivated yellow fruit type,grafting red fruit type and cultivated red fruit type were selected and treated by different soaking treatment(tap water soaking,10.5 mmol/L KH2PO4 soaking,20%detergent soaking,10%soap soaking and 20%detergent solution soaking)to analyze the effects of different soaking time,soaking temperature and germination temperature on the seed germination of 4 types of yam.The results showed that soaking in 20%liquid detergent solution for 24 h with soaking temperature at 30℃and accelerating germination temperature at 25℃,the seeds(wild red fruit type,cultivated yellow fruit type,grafting red fruit type and cultivated red fruit type)germination rate was 97.3%,95.1%,96.2%,and 97.3%,respectively,and the germination potentials were 68.1%,67.7%,65.8%,and 66.1%,respectively,which were significantly higher than other treatments,especially significantly higher than the tap water soaking treatment.20%detergent soaking solution for 24 h,and seed soaking temperature 30℃,accelerating germination temperature 25℃,could effectively promote the seed germination.It is worthy of popularization and application in production practice.

关 键 词：山桐子(IdesiapolycarpaMaxim.) 种子萌发 浸种处理 浸种温度 催芽温度 

分 类 号：S727.32[农业科学—林木遗传育种] S723.131.1[农业科学—林学]