果袋微域环境对温室小型番茄果实生长及果实光系统Ⅱ活性的影响  

Effects of Bagging Microenvironment on Growth and Activity of Photosystem Ⅱ of Small Tomato in Greenhouse

作　　者：赵立坤[1] 高志奎[1] 王梅[1] 

机构地区：[1]河北农业大学园艺学院,河北保定071001

出　　处：《北方园艺》2013年第2期5-9,共5页Northern Horticulture

基　　金：河北省"十一五"科技支撑计划资助项目(07220701D)

摘　　要：以小型番茄"佳西娜"为试材,采用打孔处理的聚丙烯拉伸透明膜袋TPF和聚乙烯淋膜白纸袋WPF进行整穗套袋,研究了在2种打孔通气方式的基础上2种果袋材质的袋内微域环境对番茄果实生长、品质、叶绿素(叶绿素a和叶绿素b)和果实表面的光系统Ⅱ(PSⅡ)的影响。结果表明:经过打孔处理的TPF和WPF的袋内温度明显降低,TPF的透光率高于WPF,果实的体积和单果重有不同程度的增加,其中WPF 8孔处理的果实体积和单果重增加明显。经过套袋处理后的可溶性糖、维生素C和游离性氨基酸含量与CK没有显著性差异,改善了套袋对番茄果实的品质具有一定负效应的影响,综合比较其生长品质,WPF处理的果实综合评价高于TPF。番茄果实表层叶绿素a和叶绿素b含量均随着生育进程呈逐渐下降趋势,套袋处理的果实叶绿素a含量在30～40d均低于CK。打孔处理的WPF和TPF的果实表面的Fv/Fm与CK无明显差异;与CK相比,WPF处理的光系统Ⅱ实际量子产量在10～20d明显降低,TPF处理的光系统Ⅱ实际量子产量在30d降低;WPF处理的光系统Ⅱ调节性能量耗散量子产量在20d增加明显,所有处理的非调节性能量耗散量子产量在40d时均到达1。总之,番茄果实经过透光率低的WPF处理后PSⅡ实际光化学效率下降,同时更多地依赖于非调节性能量耗散方式来分流PSⅡ的能流。Taking small tomato ＇Jiaxina＇ as test material,the microenvironment inside 2 kinds of material fruit bags with the 2 vents ways of the polypropylene transparent plastic film bag （TPF） and the 2 vents ways of the polyethylene white paper film bag （WPF） on its growth,quality, chlorophyll （Chl a and Chl b） and photosystem II（PSII） influence were studied. The results showed that the temperature which inside the bags with TPF and WPF was obviously decreased, the transmission rate of the TPF was higher than the WPF, the volume of fruit and the Weight of fruit were increased,the weight of fruit and the volume of fruit inside the WPF with 8 holes were remarkably increased compared with CK. The soluble sugar,vitamin C and free amino acids of tomato with the fruit bagging were not changed remarkably compared with CK,which improved the negative effect of bagging on tomato fruit quality, comprehensive comparison of its growth quality,the evaluation of fruit comprehensive with the WPF were higher than those of TPF. Meanwhile,the chlorophyll （Chl a and Chl b）of tomato with the fruit bagging was remarkably lower than CK in growth process, the chlorophyll （Chl a）of tomato with the fruit bagging was lower than CK in 30-40 d. The Fv/Fm of TPF and WPF was not changed remarkably compared with CK;compared with CK,the Y（II） of WPF was remarkably lower in 10-20 d,the Y（II） of TPF was lower in 30 d;the quantum yield of regulated energy dissipation Y（NPQ） of WPF was remarkably higher in 20 d,and the quantum yield of non-regulatory energy dissipation Y（NO） of all of the treatments was to 1 in 40 d. In short,the actual photochemical efficiency of PSII of the fruit inside the WPF with lower transmission rate was come down,meanwhile, distributed energy flow was more dependent upon the quantum yield of non-regulatory energy dissipation（Y（NO） ）.

关 键 词：番茄 套袋 果实 叶绿素荧光 光系统Ⅱ 

分 类 号：S626.5[农业科学—园艺学]