摘要
以勃氏甜龙竹[Dendrocalamus brandisii (Munro) Kurz]、花吊丝竹[D.minor var.amoenus (Q.H.Dai et C.F.Huang)Hsueh et D.Z.Li]、绿竹(Bambusa oldhamii Munro)、大头典竹[B.beecheyana var.pubescens (P.F.Li) W.C.Lin]为试验材料,研究了不同保水剂剂量(0、30、60、90 kg·hm^(-2))对竹子叶片抗性生理特性的影响,以期为保水剂在沿海防护竹林应用以及优势竹种引种栽培提供理论依据。结果表明,勃氏甜龙竹、大头典竹和绿竹的叶片叶绿素含量、可溶性蛋白含量及超氧化物歧化酶(SOD)、过氧化物酶(POD)活性随保水剂用量增加先升高后降低,花吊丝竹则呈现持续上升趋势;勃氏甜龙竹和大头典竹叶片内可溶性糖含量随保水剂用量增加先升高后降低,绿竹和花吊丝竹则呈现上升趋势;勃氏甜龙竹、大头典竹和绿竹电解质渗透率随保水剂用量增加先降低后升高,花吊丝竹则呈持续下降趋势;勃氏甜龙竹丙二醛(MDA)含量随保水剂用量增加先降低后升高,其它3个竹种均呈持续下降趋势。从主成分分析结果中可知,勃氏甜龙竹保水剂施用最佳用量为30 kg·hm^(-2)(A1处理);花吊丝竹保水剂施用最佳用量均为90 kg·hm^(-2)(A3处理);大头典竹和绿竹保水剂最佳用量均为60 kg·hm^(-2)(A2处理)。勃氏甜龙竹施保水剂效果最佳,花吊丝竹的施用效果最差。
Dendrocalamus brandisii(Munro)Kurz,D.minor var.amoenus(Q.H.Dai et C.F.Huang)Hsueh et D.Z.Li,Bambusa oldhamii Munro and B.beecheyana var.pubescens(P.F.Li)W.C.Lin were used to study the effects of dosage of super absorbent polymers(SAP)on physiology resistance of bamboo leaves in order to provide a theoretical basis for the application of SAP in coastal protection bamboo forests and the introduction of dominant bamboo species.The results showed that chlorophyll content,soluble protein content,superoxide dismutase(SOD)and peroxidase(POD)activities of D.brandisii,B.oldhami and B.beecheyana increased firstly and then decreased with the increase of the amount of SAP,while D.minor showed a continuous upward trend.Soluble sugar content of D.brandisii and B.beecheyana increased firstly and then decreased with the increase of the amount of SAP,while B.oldhami and D.minor showed a continuous upward trend.The electrolyte permeability rate of D.brandisii,B.oldhami and B.beecheyana decreased firstly and then increased with the increase of the amount of SAP,while D.minor showed a continuous downtrend.Malondialdehyde(MDA)content of D.brandisii showed the same trend with its electrolyte permeability rate,while other three bamboo species showed a continuous downtrend.According to the results of principal component analysis,the optimum dosage SAP on D.brandisii,D.minor,B.beecheyana and B.oldham was 30,90,60 and 60 kg·hm-2,respectively.The best effect of using SAP was D.brandisii,and the effect on D.minor was the worst.
作者
荣俊冬
凡莉莉
陈礼光
林宇
郑晶晶
郑郁善
RONG Jundong;FAN Lili;CHEN Liguang;LIN Yu;ZHENG Jingjing;ZHENG Yushan(College of Forestry,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China;Changle Dahe State-owned Protection Forest Farm of Fujian Province,Changle,Fujian 350212,China)
出处
《森林与环境学报》
CSCD
北大核心
2018年第4期466-472,共7页
Journal of Forest and Environment
基金
福建省科技重大专项(2013NZ0001)
福建省科技重大项目(2010N5002)
福建省区域发展项目(2015N3015)
福建省中青年教师教育科研项目(JA13472)
关键词
沿海防护竹林
保水剂
抗性生理
coast protection bamboo forests
super absorbent polymers(SAP)
resistance physiology
