浇施外源6-BA在石蒜鳞茎和土壤中的动态变化  

Dynamic Changes of Exogenous 6-BA in Lycoris radiata Bulbs and Soil

作　　者：鲍淳松[1] 高燕会[2] 张鹏翀[1] 

机构地区：[1]杭州植物园,浙江杭州 [2]浙江农林大学,浙江临安

出　　处：《农业科学》2019年第2期98-102,共5页Hans Journal of Agricultural Sciences

基　　金：杭州西湖风景名胜区管委会项目“植物生长调节剂提高石蒜属鳞茎产量研究”(2015-001)。

摘　　要：为了探讨外源植物生长调节剂对石蒜属植物鳞茎生长的影响,以盆栽石蒜(Lycoris radiata )为研究材料,浇施不同浓度的6-BA,在不同日期后测定土壤和石蒜鳞茎中6-BA的含量。结果表明土壤中6-BA含量无显著性差异(不同浓度P = 0.290、不同日期P = 0.224),但鳞茎中6-BA含量差异显著,其中以施用后的第4天鳞茎中6-BA含量达到最大(312.5 mg/kg),随后不断减少;鳞茎中6-BA含量与施用浓度有关,呈施用浓度越高鳞茎中含量越高的倾向;叶数量和根数量无显著性差异;鳞茎湿重无显著差异,但湿重比有显著差异;因此,通过施用6-BA,本研究未能促进石蒜鳞茎生长。In order to investigate the effects of exogenous plant growth regulators on the growth of Lycoris radiata bulbs, different concentrations of 6-BA were poured to potted Lycoris radiata, and the content of 6-BA in soil and Lycoris radiata bulbs was tested after different dates. The results showed that there was no significant difference in the content of 6-BA in soil (P = 0.290 at 6-BA different concentrations and P = 0.224 at different days), but the contents of 6-BA in bulbs was significant. The con-tent of 6-BA in bulbs reached the maximum (312.5 mg/kg) on the 4th day after pouring, and then decreased continuously. The content of 6-BA in bulbs was related to the concentration of poured 6-BA, which tended to be higher in bulbs with higher concentration of poured 6-BA. There was no significant difference in the number of leaves, roots and bulbs wet weight, while the wet weight ratio had significant difference. Therefore, 6-BA failed to promote the bulb growth of Lycoris radiata.

关 键 词：石蒜 6-BA 浇施 土壤 鳞茎 生物量 

分 类 号：S68[农业科学—观赏园艺]