种植密度对骏枣叶片光合特性及果实品质的影响  

Effects of Planting Density on Leaf Photosynthetic Characteristics and Fruit Quality of Junzao Trees

作　　者：王晶晶[1] 李铭[1] 陈奇凌[1] 郑强卿[1] 

机构地区：[1]新疆农垦科学院,新疆石河子832000

出　　处：《西南农业学报》2015年第5期1936-1938,共3页Southwest China Journal of Agricultural Sciences

基　　金：国家科技支疆计划"密植枣园水肥高效利用关键技术研究与示范"(2011BAD48B03);兵团青年创新资金专项"不同密度下红枣光合特性与果实干物质积累研究"(2012CB024);国家973计划前期预研专项"新疆优化密植枣园微域环境因子对果实品质与产量影响的研究"(2010CB134406)

摘　　要：为枣树在南疆栽植探寻适宜的种植密度。以3年生骏枣（Zizyphus jujube cv.Jun zao）为试验材料,根据生产实际,在111~1185株/667 m2选取M1、M2、M3和M4 4个密度,研究不同栽植密度下骏枣光合特性、果实品质的变化。结果表明,在骏枣成熟期,不同种植密度枣树的净光合速率（Pn）,光合有效辐射（PAR）、气孔导度（Gs）、细胞间CO2摩尔浓度（Ci）、蒸腾速率（E）、气孔导度（Gs）、胞间CO2浓度（Ci）、蒸腾速率（Tr）和水分利用效率（WUE）不同,随着种植密度的增加,各指标呈现先升高后降低的趋势。可溶性糖含量先升高后降低,Vc含量差异不明显。综合以上指标得出,栽植密度与枣树光合特性、果品品质之间存在密切的关系,M3（333株/667 m2）栽植效果为佳。In order to find a reasonable southern jujube planting density,three year old Chun jujube（ Zizyphus jujube cv. Jun zao） was taken as the test material and four density of M1,M2,M3 and M4 were chosen from 111- 1185 plant / 667 m2 to study the changes of photosynthetic characteristics,fruit quality of Chun dateunder different planting densities according to the practical production. The results showed that in the maturity of Chun date,net photosynthetic rate（ Pn） of jujube of different planting densities,photosynthetically active radiation（ PAR）,stomatal conductance（ Gs）,intercellular CO2 mole concentration（ Ci）,transpiration rate（ E）,stomatal conductance（ Gs）,intercellular CO2concentration（ Ci）,transpiration rate（ Tr） and water use efficiency（ WUE） of different indicators,with the increase of planting density,first increased and then decreased. The soluble sugar content first increased and then decreased,and Vc content difference was not obvious. The above indexes,planting density and photosynthetic characteristics of Chinese jujube,there was a close relationship between planting density and photosynthetic characteristics and fruit quality. M3（ 333 plant /667 m2） had the best planting effect.

关 键 词：栽植密度 骏枣 光合特性 品质 

分 类 号：S665.1[农业科学—果树学]