赤霉素对马铃薯扦插苗生长发育及产量的效果  

Effects of GA on Growth and Yield of Potato Cutting Seedlings

作　　者：李海珀 陈富 袁安明 陈向东 张小静 唐彩梅 曹宁 张建祥 LI Haipo;CHEN Fu;YUAN Anming;CHEN Xiangdong;ZHANG Xiaojing;TANG Caimei;CAO Ning;ZHANG Jianxiang(Dingxi Seed Management Station, Dingxi, Gansu 743000, China;Dingxi Bohong Potato Industry Limited Liability Company Dingxi, Gansu 743000, China;Dingxi Academy of Agricultural Sciences, Dingxi, Gansu 743000, China;Gansu Potato Engineering Research Center, Dingxi, Gansu 743000, China)

机构地区：[1]定西市种子管理站,甘肃定西743000 [2]定西博宏薯业有限责任公司,甘肃定西743000 [3]定西市农业科学研究院,甘肃定西743000 [4]甘肃省马铃薯工程技术研究中心,甘肃定西743000

出　　处：《中国马铃薯》2018年第2期70-73,共4页Chinese Potato Journal

基　　金：国家科技支撑计划项目(2012BAD06B00);国家马铃薯产业技术体系定西综合试验站(CARS-10-ES27)

摘　　要：针对马铃薯扦插苗在冬季低温条件下生长发育缓慢、结薯率低的问题,开展赤霉素不同浓度处理对扦插苗生长发育及原原种产量的影响研究。结果表明,当赤霉素的喷施浓度为10 mg/L时,对扦插苗生长发育、生物量的积累、匍匐茎的发生与膨大、结薯数量与产量的增加均有促进作用,单株结薯数达6.3粒/株(CK 2.5粒/株),且结薯合格率(≥2 g)较对照提高60.9%。Growth of cutting seedlings is slow and minituber set is low when cuttings are grown under low temperature in winter. This research aimed to study the effects of GA concentrations on growth and minituber yield of cutting seedlings. The results showed that the better enhancement of cutting seedlings growth, biomass accumulation,stolon occurrence and enlargement, and minituber number and yield were achieved when the concentration of GA was at 10 mg/L. Minituber numbers reached to 6.3 piece per plant（CK 2.5 piece per plant）, and qualified minituber（≥ 2 g）percentage was improved by 60.9% compared with the control.

关 键 词：赤霉素 马铃薯 扦插苗 生长发育 产量 

分 类 号：S532[农业科学—作物学]