摘要
对匍匐翦股颖粤选1号种茎采收前24h和采收后分别进行不同浓度的6-BA(1.0、2.5、5.0、7.5mg/L)和尿素(0.5%、1.5%、2.5%)处理,清水对照(CK),探讨其对粤选1号匍匐翦股颖种茎扦插成活率和生长的影响。通过观测种茎的外观变化,种茎成活率、根长、生根数、根重、分蘖数、根系活力和叶绿素含量的的变化,初步确定种茎采前处理用2.5mg/L6-BA和2.5%尿素处理、采后用1.5%尿素处理均优于各自对照,但采前、采后处理中除根系活力与各自对照有显著差异(P<0.05)外,其它指标均未达各自对照的显著水平;种茎采前与采后处理对比,采前处理效果总体好于采后处理。综上所述,种茎采收前选用2.5%尿素处理能明显提高种茎成活率和生根质量。
Studied on the Agrostis stolonifera L. cv. Yuexuan No. 1 cuttings which were treated with different concentra tion of 6-BA（1. 0,2. 5,5. 0,7. 5 mg/L） or urea （0. 5 %, 1.5 %,2. 5 %） before spraying or after affect on survival rate and growth of budding. Appearance variation, cutting survivor, root length, rooted number, root system vigor and chlorophyll were measured. Furthermore, 2.5 mg/L concentration of 6-BA and 2.5% concentration of urea preharvest and 1.5% concentration of urea post-harvest were better than the control （water）. But apart from enhancing the root vigor and control a significant difference （P〈0. 05）, the other side there was no significant difference. The elect of preharvest spray was better than post-harvest. The comprehensive analysis showed that theory optimal was 2, 5 % concentration of urea preharvest could accelerate the root survivor and growth as well.
出处
《北方园艺》
CAS
北大核心
2009年第12期196-199,共4页
Northern Horticulture
基金
仲恺农业工程学院科研基金资助项目(G3061220)
关键词
匍匐翦股颖粤选1号
6-BA尿素
成活率
扦插
Agrostis stolonifera L. cv. Yuexuan No. 1
6-BA
Urea
Survival Rate
Cutting
