施肥措施对一品红抗寒生理指标的影响  

Effect of Application of Fertilizers on the Physiological Indices of Cold Resistance of Euphorbia pulcherrima willd

作　　者：段晓宇[1] 李贤伟 李素清[3] 

机构地区：[1]四川农业大学都江堰分校,四川都江堰611830 [2]林学园艺学院,四川雅安625014 [3]信息与工程技术学院,四川雅安625014

出　　处：《四川农业大学学报》2008年第2期141-148,共8页Journal of Sichuan Agricultural University

基　　金：四川农业大学都江堰分校科技基金(N-200616);国家“十一五”科技支撑项目(2006BAC01A11);教育部重点学科博士点基金(20050626001);四川省教育厅重点实验室项目(2006ZD006)

摘　　要：研究了K、Ca、Si肥对一品红天鹅绒、威望2品种抗寒性生理生化特性的影响及可能的调控技术。采用三因素五水平二次回归正交旋转组合设计,建立了施K、Ca、Si量与2品种抗寒性综合分之间的效应模型并对模型进行了优化分析。结果表明:3种肥料均能提高一品红抗寒性,但对威望品种影响大于天鹅绒品种,各指标对抗寒性影响大小为:电导率>丙二醛>可溶性蛋白质>可溶性糖>脯氨酸>SOD。高抗寒性栽培要点如下:天鹅绒品种:施KCl量231～369mg/L,施CaCl2量79～121mg/L,施Na2SiO3量42～58mg/L;威望品种:施KCl量229～330mg/L,施CaCl2量86～120mg/L,施Na2SiO3量33～48mg/L。The study is on the effects of K, Ca, Si on the physiological and biochemical characteristic of cold hardiness of poinsettia （Red Velvet and Prestige） and possible controlled technology. By using the device of secondary regression orthogonal rotary combination including three factors, and five levels, the basic models of efficiency were established between K, Ca , Si and synthetic value of cold hardiness of two varieties of poinsettia, and the optimization analysis for the models is made. The results show that three varieties of fertilizers all have roles in improving cold hardiness of poinsettia, and the influence on Prestige is better than on Red Velvet. The order of targets in effects of cold hardiness is as follows： conductivity〉MDA〉soluble protein〉soluble sugar〉 proline〉appearance〉SOD. The main points for the pattern of cultivation are as follows： the optimal combination of fertilizer quantity for Red Velvet is 231 -369 mg/L KCl, 79- 121 mg/L CaCl2, 42-58 mg/L Na2SiO3, and the optimal combination of fertilizer quantity for Prestige is 229-330 mg/L KCl, 86-120 mg/L CaCl2, 33-48 mg/L Na2SiO3.

关 键 词：一品红 肥料 抗寒性 统计分析 

分 类 号：S723[农业科学—林木遗传育种]