氮磷钾不同配比水溶肥对春石斛组培苗生长的影响  

Effects of Fertilizers with Different N,P,K Ratios on the Growth of Dendrobium nobile Tissue Cultured Seedling

作　　者：张乐萍 王亚平 谭志勇 王燕君 刘伟[2] 

机构地区：[1]东莞市粮作花卉研究所,广东东莞523138 [2]华南农业大学生命科学学院,广东广州510642

出　　处：《亚热带植物科学》2016年第1期80-82,共3页Subtropical Plant Science

基　　金：农业科技成果转化资金项目(2014GB2E000044)

摘　　要：以春石斛品种‘甜心石斛’Den.Lucky Girl‘Sweetheart’组培苗为材料,研究不同N、P、K比例的水溶肥及施肥方式对其幼苗生长的影响。结果表明,花多多2号(10-30-20)叶面喷施和灌根处理的植株成活率均为最高;花多多1号(20-20-20)灌根处理的植株株高、叶片数、茎围等指标表现居中,但新芽个数最少;花多多2号(10-30-20)灌根处理植株新芽数最多,其他指标较差;花多多10号(30-10-10)灌根处理的植株生长表现最优,但成活率最低。Effects of fertilizers with different N-P-K ratios and applying methods on growth of Dendrobium nobile tissue cultured seedling were studied taking tissue cultured seedlings of Den. Lucky Girl ‘Sweetheart＇ as materials. The results showed that treatments of foliar spraying and root irrigation with peters No.2 10-30-20 had the highest survival rates. Plant height, leaf number and stem circumference had moderate performance with the treatment of root irrigation with peters No.1 20-20-20, but the bud number was the fewest. The treatment of root irrigation with peters No.10 30-10-10 had the best performance in the vegetative growth, but the lowest survival rate. The treatment of root irrigation with 10-30-20 had the most shoot number, but the worst performance in the other indicators.

关 键 词：春石斛 苗期 施肥 

分 类 号：S682.31[农业科学—观赏园艺]