喷施营养液对切花菊‘神马’种苗形态及生理指标的影响  

Effects of Spraying Nutrient Solutions on the Morphological and Physiological Indexes of Chrysanthemum Cutting Plants

作　　者：贾挺进[1] 马文慧[1] 曾海鹏 肖敏 赵梁军[1] 

机构地区：[1]中国农业大学观赏园艺与园林系,北京100193 [2]北京信采种植有限公司,北京102606

出　　处：《中国农业科学》2010年第18期3892-3900,共9页Scientia Agricultura Sinica

基　　金：农业部"948"项目(2008-3G);北京市科技计划课题(D08050600120804)

摘　　要：【目的】研究喷施营养液对切花菊神马(Chrysanthemum morifolium cv.Jinba)种苗形态及生理指标的影响,以期提高种苗质量,达到壮苗的目的。【方法】以矮壮素、蔗糖、大豆寡肽和尿素为营养液的主要成分,采用"416-A"最优混合设计。【结果】喷施营养液后种苗形态及生理指标与对照相比得到明显改善,在16个不同浓度梯度处理中,经T10处理的种苗干重、T9处理的株高和T1处理的茎粗、根冠比达到最大值,与对照差异显著。在整个扦插期内,T1、T9和T10的可溶性糖含量、叶绿素、可溶性蛋白含量都高于对照,其中经T9处理的可溶性蛋白和T10处理的叶绿素、可溶性糖含量增加最为明显,与对照成显著差异。【结论】建立了种苗干重、株高的回归方程,r值分别为0.916、0.907,说明数学回归模型是准确的,可以用来决策和预报。最终由计算机寻优,并参照实际生产经验确定营养母液最佳配比方案:矮壮素5.9%、大豆寡肽7.9%、蔗糖4.95%、尿素36.53%。Objective The effects of different nutrient solutions on the morphological and physiological indexes of cut chrysanthemum cv.Jinba cutting plants were studied.Method 416-A optimization compound design was used,and CCC,sucrose,oligopeptides,urea were the chief components in this experiment.Result These indexes were improved obviously by spraying nutrient solutions as compared with the control.The treatments T10 and T9 got the highest values of dry weight and height,respectively,and significant difference was observed compared with the control.During the whole cutting period,the contents of soluble sucrose,protein and chlorophy in T1,T9,and T10 treatments were higher than the control,the content of soluble protein of T9 and soluble sucrose,chlorophy of T10 increased remarkably.Conclusion The multiple element regression equation of dry weight and height was established in this study and can be used in decision-making and forecast,according to the r value 0.916,0.907 and variance analysis.Based on the computer analysis and production experience,the optimization scheme obtained is CCC 5.9%,oligopeptides 7.9%,sucrose 4.95%,and urea 36.53%.

关 键 词：切花菊 营养液 形态指标 生理指标 

分 类 号：S682.11[农业科学—观赏园艺]