赤霉素对单头切花菊发育和外观品质的影响  

Effects of Gibberellin on Development and External Quality of Single Flower Cut Chrysanthemum morifolium Ramat.

作　　者：杨再强[1] 罗卫红[2] 陈发棣[2] 谢以萍[3] 张茂琼 

机构地区：[1]南京信息工程大学应用气象学院,南京210044 [2]南京农业大学农学院,南京210095 [3]南京信息工程大学网络中心,南京210044 [4]上海鲜花港企业有限责任公司,上海201303

出　　处：《植物生理学通讯》2008年第6期1095-1098,共4页Plant Physiology Communications

基　　金：国家自然科学基金(60073028);国家高技术研究发展项目(2006AA10Z218);上海市科技兴农四新项目(沪农科推字2003第1-2-1号);南京信息工程大学校科研基金(20080127)。

摘　　要：在菊花幼苗定植到短日照处理期间,喷施50、100、150、200mg·L^(-1)赤霉素的结果表明:菊花发育进程加快,收获期明显缩短,在0～200mg·L^(-1)赤霉素范围内随赤霉素浓度的增加,发育进程加快明显,200mg·L^(-1)赤霉素处理的所需天数最短。株高、花径和花梗长度的生长受到促进,茎粗和叶片数生长受抑。Chrysanthemum morifolium plants were sprayed with 50, 100, 150 and 200 mg·L^-1 gibberellin under short day. The results showed that gibberellin had remarkable effects on promoting flowering of cut chrysanthemum in greenhouse. With the increase of gibberellin concentration ranging from 0 to 200 mg·L^-1, the development progress was significantly promoted. The shortest harvesting date occurred with 200 mg·L^-1 gibberellin treatment. Gibberellin had notable effects on enhancing plant height, flower diameter and flower stalk length, but decreasing both leaf number and stem diameter of chrysanthemum plants.

关 键 词：菊花 赤霉素 化学调控 发育 外观品质 

分 类 号：S682.11[农业科学—观赏园艺]